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Fall 2008 Logo2008 MRS Fall Meeting & Exhibit

December 1-5, 2008 | Boston
Meeting Chairs:
 S. Ashok, Shenda M. Baker, Michael R. Fitzsimmons, Young-Chang Joo

Symposium L : New Materials with High Spin Polarization and Their Applications

2008-12-02   Show All Abstracts

Symposium Organizers

Claudia Felser Johannes Gutenberg University of Mainz
Arunava Gupta The University of Alabama
Burkard Hillebrands Technische Universitaet Kaiserslautern
Sabine Wurmehl Eindhoven University of Technology
L1/C4: Joint Session: Magnetoelectric Coupling in Multiferroics
Session Chairs
Arunava Gupta
Darrell Schlom
Tuesday PM, December 02, 2008
Room 210 (Hynes)

9:30 AM - **L1.1/C4.1
New Routes to Electric-field Control of Magnetism.

Nicola Spaldin 1
1 Materials Department, University of California, Santa Barbara, California, United States

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10:00 AM - **L1.2/C4.2
Dynamical Magnetoelectric Effects in Oxide Multiferroics.

Yoshinori Tokura 1 2
1 Department of Applied Physics, University of Tokyo, Tokyo Japan, 2 ERATO Multiferroics, JST, Tokyo Japan

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10:30 AM - L1.3/C4.3
Ferroelectric Control of Carrier Mediated Ferromagnetism in (Fe,Zn)3O4 with High Curie Temperature in Field Effect Transistor Structure.

Hidekazu Tanaka 1 , Junichi Takaobushi 1 , Teruo Kanki 1 , Tomoji Kawai 1
1 ISIR-Sanken, Osaka University, Osaka Japan

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10:45 AM - L1.4/C4.4
Charge-mediated Magnetoelectric Coupling in Complex Oxides with Competing Ground States.

Jason Hoffman 1 2 , Carlos Vaz 1 2 , Hajo Molegraaf 3 , Xia Hong 4 , Jean-Marc Triscone 3 , Charles Ahn 1 2
1 Applied Physics, Yale University, New Haven, Connecticut, United States, 2 Center for Research on Interface Structures and Phenomenon, Yale University, New Haven, Connecticut, United States, 3 DPMC, Université de Genève, Genève Switzerland, 4 Physics, Penn State University, State College, Pennsylvania, United States

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11:00 AM - L1/C4:joint
BREAK

11:30 AM - L1.5/C4.5
Hybrid Multiferroic System: Non-Volatile Control of Ferromagnetism in (Ga,Mn)As Gated by Ferroelectric Polymer.

Igor Stolichnov 1 , Sebastian Riester 1 , Nava Setter 1 , Joe Trodahl 1 2 , Andrew Rushforth 3 , Kevin Edmonds 3 , Richard Campion 3 , Thomas Foxon 3 , Bryan Gallagher 3 , Tomas Jungwirth 4 3
1 , Ceramics Laboratory, EPFL-Swiss Federal Institute of Technology, Lausanne Switzerland, 2 , MacDiarmid Institute for Advanced Materials and Nanotechnology, Victoria University, Wellington New Zealand, 3 , School of Physics and Astronomy, University of Nottingham, Nottingham United Kingdom, 4 , Institute of Physics ASCR, Praha Czechia

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11:45 AM - L1.6/C4.6
Novel FeGaB Thin Films and Giant Microwave Tunability in FeGaB/PMN-PT Multiferroic Composites.

Jing Lou 1 2 , David Reed 1 2 , Carl Pettiford 1 2 , Ming Liu 1 2 , Nian Sun 1 2
1 Electrical and Computer Engineering, Northeastern University, Boston, Massachusetts, United States, 2 Center for Microwave Magnetic Materials and Integrated Circuits, Northeastern University, Boston, Massachusetts, United States

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12:00 PM - L1.7/C4.7
Magnetoelectric Effect in Ferroelectric-antiperovskite Heterostructure.

Pavel Lukashev 1 , Renat Sabirianov 1
1 Physics, University of Nebraska, Omaha, Omaha, Nebraska, United States

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12:15 PM - **L1.8/C4.8
Unanticipated Consequences of Spin-Orbit Coupling in Half Metallic Ferromagnets.

Warren Pickett 1 , Kwan-woo Lee 1
1 Department of Physics, University of California-Davis, Davis, California, United States

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12:45 PM - L1.9/C4.9
Magnetoelectric Coupling Through Exchange Bias at La0.7Sr0.3MnO3/BiFeO3 Interfaces.

Mark Huijben 1 2 , Ying-Hao Chu 2 3 , Lane W. Martin 2 4 , Martin Couillard 5 , Hajo Molegraaf 1 6 , Jan Seidel 2 4 , Nina Balke 2 , Pu Yu 2 , Micky B. Holcomb 2 , Guus Rijnders 1 , Jean-Marc Triscone 6 , David A. Muller 5 , Silvia Picozzi 7 , Elbio Dagotto 8 9 , Dave Blank 1 , R. Ramesh 2 4
1 Faculty of Science and Technology and MESA+ Institute for Nanotechnology, University of Twente, Enschede Netherlands, 2 Department of Physics & Department of Materials Science and Engineering, University of California, Berkeley, Berkeley, California, United States, 3 Department of Materials Science and Engineering, National Chiao Tung Unviersity, HsinChu Taiwan, 4 Materials Science Division, Lawrence Berkeley National Laboratory, Berkeley, California, United States, 5 School of Applied and Engineering Physics, Cornell University, Ithaca, New York, United States, 6 DPMC, University of Geneva, Geneva Switzerland, 7 , CNR INFM, L’Aquila Italy, 8 Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee, United States, 9 Division of Materials Science & Technology, Oak Ridge National Laboratory, Oak Ridge, Tennessee, United States

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L2: New Half-metallic Compounds, Heusler Compounds, Magnetic Tunnel Junctions with Half-metallic Ferromagnets
Session Chairs
Claudia Felser
Tuesday PM, December 02, 2008
Room 204 (Hynes)

2:30 PM - L2.1
Tunnel Magnetoresistance Characteristics of Post-Deposition-annealed Co2MnGe/MgO/CoFe Tunnel Junctions.

Tomoyuki Taira 1 , Takayuki Ishikawa 1 , Ken-ichi Matsuda 1 , Tetsuya Uemura 1 , Masafumi Yamamoto 1
1 Division of Electronics for Informatics, Hokkaido University, Sapporo Japan

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2:45 PM - L2.2
Anomalous Hall Effect in Co2MnSi and Co2FeSi Thin Films.

Horst Schneider 1 , Enrique Vilanova 1 , Gerhard Jakob 1
1 Institute of Physics, Johannes Gutenberg-University, Mainz Germany

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3:30 PM - **L2.5
Tunnel Magneto-resistance Effect in Magnetic Tunnel Junctions using Half-metallic Heusler Alloy Electrodes and an MgO Tunneling Barrier.

Mikihiko Oogane 1 , Sumito Tsunegi 1 , Yuya Sakuraba 2 , Koki Takanashi 2 , Yasuo Ando 1
1 , Tohoku University, Sendai Japan, 2 , Tohoku University, IMR, Sendai Japan

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4:00 PM - L2:Compounds
BREAK

4:30 PM - **L2.6
Spin-polarized Tunneling in Fully Epitaxial Magnetic Tunnel Junctions with Heusler Alloy Thin Films and a MgO Barrier.

Masafumi Yamamoto 1 , Takayuki Ishikawa 1 , Ken-ichi Matsuda 1 , Tetsuya Uemura 1
1 Division of Electronics for Informatics, Hokkaido University, Sapporo Japan

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5:00 PM - L2.7
New Half-metals:Half-metallic Completely Compensated Ferrimagnets.

Benjamin Balke 1 , Gerhard Fecher 2
1 Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California, United States, 2 , University of Mainz, Mainz Germany

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5:15 PM - L2.8
Structural Properties of Heusler Alloy Thin Films as a Function of Target Preparation, Substrate Conditions and Sputtering Parameters.

Subhadra Gupta 1 2 , Zeenath Tadisina 1 2 , Xiao Li 2 1 , Yuki Inaba 2 1 , Karen Torres 1 2 , Gregory Thompson 1 2 , Tim Mewes 3 2 , Patrick LeClair 3 2
1 Metallurgical and Materials Engineering, The University of Alabama, Tuscaloosa, Alabama, United States, 2 MINT Center, University of Alabama, Tuscaloosa, Alabama, United States, 3 , The University of Alabama, Tuscaloosa, Alabama, United States

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5:30 PM - L2.9
Interface Dependence of the Spin Polarization and Magnetization of Co2Fe1-xCrxAl Heusler Compounds.

Martin Jourdan 1 , Christian Herbort 1 , Elena Arbelo 1 , Michael Kallmayer 1 , Hans-Joachim Elmers 1
1 Physics, Gutenberg University Mainz, Mainz Germany

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5:45 PM - L2.10
Tunneling Conductance Characteristics for Co2Cr0.6Fe0.4Al/MgO/Co2Cr0.6Fe0.4Al Magnetic Tunnel Junctions.

Naoki Itabashi 1 , Takayuki Ishikawa 1 , Kazuki Yonemura 1 , Ken-ichi Matsuda 1 , Tetsuya Uemura 1 , Masafumi Yamamoto 1
1 Division of Electronics for Informatics, Hokkaido University, Sapporo Japan

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2008-12-03   Show All Abstracts

Symposium Organizers

Claudia Felser Johannes Gutenberg University of Mainz
Arunava Gupta The University of Alabama
Burkard Hillebrands Technische Universitaet Kaiserslautern
Sabine Wurmehl Eindhoven University of Technology
L3: Theoretical Studies of Half-metallic Behavior in Bulk Materials and Interfaces
Session Chairs
Warren Pickett
Wednesday AM, December 03, 2008
Room 204 (Hynes)

10:00 AM - L3.1
Variational Solution for the Rashba Splitting in AlGaAs/GaAs Heterojunction.

Antonio Ferreira da Silva 1 , Marcelo Toloza Sandeval 1 , Erasmo de Andrada e Silva 2 , Giuseppe La Rocca 3
1 Instituto de Física, Universidade Federal da Bahia, Salvador, Bahia, Brazil, 2 LAS, Instituto Nacional de Pesquisas Espaciais, São José dos Campos, São Paulo, Brazil, 3 , Scuola Normale Superiore, Pisa Italy

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10:15 AM - L3.2
Theoretical Design of Highly Spin-polarized Interfaces between Half-metallic Heusler Alloys and Semiconductors.

Masafumi Shirai 1 , Yoshio Miura 1 , Kazutaka Abe 1
1 Reseach Institute of Electrical Communication, Tohoku University, Sendai Japan

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10:30 AM - L3.3
The Electronic Band Structure and Surface Stability of CoS2(100).

Ning Wu 1 , Yaroslav Losovyj 1 2 , David Wisbey 1 , Renat Sabirianov 3 , Wai-Ning Mei 3 , Chun-gang Duan 1 4 , Zhaoxian Yu 5 , Kirill Belashchenko 1 , Lan Wang 6 , Michael Manno 6 , Chris Leighton 6 , Peter Dowben 1
1 Department of Physics and Astronomy, University of Nebraska-Lincoln, Lincoln, Nebraska, United States, 2 Center for Advanced Microstructures and Devices, Louisiana State University, Baton Rouge, Louisiana, United States, 3 Department of Physics, University of Nebraska - Omaha, Omaha, Nebraska, United States, 4 Key Laboratory of Polarized Materials and Devices, Ministry of Education, East China Normal University, Shanghai China, 5 School of Physics & Engineering, Zhongshan University, Guangzhou China, 6 Department of Chemical Engineering and Materials Science, University of Minnesota, Minneapolis, Minnesota, United States

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10:45 AM - L3:Theory
BREAK

11:15 AM - **L3.4
Rational Design of Half-Metallic Heterostructures.

William Butler 1 , Claudia Mewes 1 , Chunsheng Liu 1
1 MINT Center, University of Alabama, Tuscaloosa, Alabama, United States

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11:45 AM - L3.5
Calculation of Gilbert Damping in Half Metals.

Claudia Mewes 1 , Chunsheng Liu 1 , Mairbek Chshiev 1 , Tim Mewes 1 , William Butler 1
1 , Center for Materials for Information Technology, Tuscaloosa, Alabama, United States

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12:00 PM - **L3.6
Many-body Correlations in Heusler Compounds.

Jan Thoene 1 , Stanislav Chadov 1 , Gerhard Fecher 1 , Claudia Felser 1
1 , Johannes Gutenberg University, Mainz Germany

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L4: Applications of Half-metallic Ferromagnets, Including Shape Memory, Nanoparticles, CPP-GMR, Spin filter, and Spin Dynamics
Session Chairs
Burkard Hillebrands
Wednesday PM, December 03, 2008
Room 204 (Hynes)

2:30 PM - L4.1
Magnetic and Electrical Properties of Atomically-Controlled Fe3Si/Ge Heterostructure for Group IV-Based Spin Transistor.

Taizoh Sadoh 1 , Koji Ueda 1 , Yuichiro Ando 1 , Kohei Hamaya 1 , Yukio Nozaki 1 , Kimihide Matsuyama 1 , Yoshihito Maeda 2 , Masanobu Miyao 1
1 , Kyushu University, Fukuoka Japan, 2 , Kyoto University, Kyoto Japan

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2:45 PM - L4.2
Electronic Properties and CPP-GMR Sensor Fabrication Based on Co2FeSi and Co2MnSi Heusler Alloy.

Zeenath Tadisina 1 , Courtney Guenther 1 , Tianyi Xu 1 , Xiao Li 1 , Subhadra Gupta 1 , William Butler 1 , Patrick LeClair 1 , Claudia Felser 2
1 MINT Center , The University of Alabama, Tuscaloosa, Alabama, United States, 2 Chemistry, Johannes-Gutenberg University, Mainz Germany

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3:00 PM - **L4.3
Application of New Ferromagnetic Alloys to CPP-GMR Recording Heads.

Jeffrey Childress 1
1 San Jose Research Center, Hitachi GST, San Jose, California, United States

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3:30 PM - **L4.4
The Heusler Alloys Co2MnSi, Co2FeSi and Co2Mn0.5Fe0.5Si in Magnetic Tunnel Junctions.

Guenter Reiss 1 , Andreas Huetten 1 , Jan Schmalhorst 1 , Andy Thomas 1 , Alexander Weddemann 1 , Daniel Ebke 1
1 Department of Physics, Bielefeld University, Bielefeld Germany

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4:00 PM - *
break

4:30 PM - **L4.5
Half-metallic Co2FeAl0.5Si0.5 Heusler Alloys for Spintronics Devices.

Koichiro Inomata 1 , Hiroaki Sukegawa 1 , Wenhong Wang 1 , Rong Shan 1 , Takao Furubayashi 1 , Yukiko Takahashi 1 , Kazuhiro Hono 1
1 , National Institute for Materials Science, Tsukuba Japan

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5:00 PM - L4.6
Ferromagnetism and Transport in Mn-doped GaAs1-yPy and GaAs1-yNy: TC Trends and Metal-insulator Transition.

Peter Stone 1 2 , Kirstin Alberi 1 2 , Samuel Tardif 2 , Jeffrey Beeman 2 , Kin Yu 2 , Mark Ridgway 3 , Wladek Walukiewicz 2 , Oscar Dubon 1 2
1 Materials Science and Engineering, University of California-Berkeley, Berkeley, California, United States, 2 , Lawrence Berkeley National Laboratory, Berkeley, California, United States, 3 , The Australian National Univeristy, Canberra, Australian Capital Territory, Australia

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5:15 PM - L4.7
Molecular Beam Epitaxial Growth of Iron and Iron Nitrides on Wurtzite Gallium Nitride (0001)*.

Wenzhi Lin 1 , Jeongihm Pak 1 , David Ingram 1 , Arthur Smith 1
1 Department of Physics and Astronomy, Nanoscale and Quantum Phenomena Institute, Athens, Ohio, United States

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5:30 PM - L4.8
Variation of Growth Mode with Epitaxial Orientation for Half-Metallic CrO2 Films.

K. Chetry 1 , M. Pathak 1 , H. Sims 1 , P. LeClair 1 , W. Butler 1 , A. Gupta 1
1 MINT Center, University of Alabama, Tuscaloosa, Alabama, United States

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5:45 PM - L4.9
Preparation and Characterization of (001) and (110)-Oriented Fe1.4Ti0.6O3 Films.

Tatsuo Fujii 1 , Tatsuya Sugano 1 , Yusuke Takada 1 , Makoto Nakanishi 1 , Jun Takada 1
1 Department of Applied Chemistry, Okayama university, Okayama Japan

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L5: Poster Session
Session Chairs
Claudia Felser
Thursday AM, December 04, 2008
Exhibition Hall D (Hynes)

9:00 PM - L5.1
Tunneling Spectroscopy of Fully Epitaxial Co2MnSi/MgO/Co2MnSi Magnetic Tunnel Junctions.

Takayuki Ishikawa 1 , Naoki Itabashi 1 , Tomoyuki Taira 1 , Ken-ichi Matsuda 1 , Tetsuya Uemura 1 , Masafumi Yamamoto 1
1 Division of Electronics for Informatics, Hokkaido University, Sapporo Japan

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9:00 PM - L5.10
Magnetic and Optical Properties of 3d Transition-metals Doped SnO2.

Luisa Scolfaro 1 , P. Borges 1 , H. Leite Alves 2 , J. A. Alves 2 , E. da Silva 3
1 DFMT, Instituto de Fisica, Universidade de Sao Paulo, Sao Paulo, SP, Brazil, 2 Depart. Ciencias Naturais, Universidade de Sao Joao del Rei, São João del Rei, MG, Brazil, 3 Depart. de Fisica, Universidade Federal de Pernambuco, Recife, PE, Brazil

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9:00 PM - L5.11
Giant TMR Effect in Granular-structured C60-Co Hybrid Films.

Seiji Sakai 1 , Yoshihiro Matsumoto 1 , Isamu Sugai 2 , Seiji Mitani 2 , Koki Takanashi 2 1 , Yasumasa Takagi 3 , Tsuyoshi Nakagawa 3 , Toshihiko Yokoyama 3 , Hiroshi Naramoto 1 , Yoshihito Maeda 4 1
1 Advanced Science Research Center, Japan Atomic Energy Agency, Tokia, Naka, Ibaraki, Japan, 2 Institute for Materials Research, Tohoku University, Sendai, Miyagi, Japan, 3 Institute for Molecular Science, Japan Atomic Energy Agency, Myodaiji, Okazaki, Aichi, Japan, 4 Department of Energy Science and Technology, Kyoto University, Kyoto Japan

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9:00 PM - L5.12
Electronic and Spin States of C60-Co Thin Films Studied by XPS and X-ray Magnetic Circular Dichroism.

Yoshihiro Matsumoto 1 , Seiji Sakai 1 , Hiroshi Naramoto 1 , Takeshi Nakagawa 2 , Yasumasa Takagi 2 , Toshihiko Yokoyama 2 , Toshihiro Shimada 3 , Norie Hirao 4 , Yuji Baba 4 , Yoshihito Maeda 1 5
1 Advanced Science Research Center, Japan Atomic Energy Agency, Tokai-mura, Naka-gun, Ibaraki, Japan, 2 , Institue for Molecular Science, Okazaki, Aichi, Japan, 3 Department of Chemistry, University of Tokyo, Hongo, Bunkyo-ku, Tokyo, Japan, 4 Synchrotron Radiation Center, Japan Atomic Energy Agency, Tokai-mura, Naka-gun, Ibaraki, Japan, 5 Department of Energy Science and Technology, Kyoto University, Sakyo-ku, Kyoto, Japan

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9:00 PM - L5.13
Effect of Growth Temperature and Annealing on Structural and Magneto-transport Properties of Co-doped In2O3 Diluted Magnetic Semiconductors.

A. Ghosh 1 , R. Gupta 1 , P. Kahol 1 , K. Ghosh 1
1 Department of Physics, Astronomy, and Materials Science, Missouri State University, Springfield, Missouri, United States

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9:00 PM - L5.14
Magnetotransport and Magnetic Interactions in Cobalt-doped ZnO.

Mathew Ivill 1 , Patrick Sadik 1 , Lii-Cherng Leu 1 , Stephen Pearton 1 , Ritesh Das 2 , Art Hebard 2 , Matthew Chisholm 3 , John Budai 3 , David Norton 1
1 Department of Materials Science and Engineering, University of Florida, Gainesville, Florida, United States, 2 Department of Physics, University of Florida, Gainesville, Florida, United States, 3 Materials Science and Technology Division, Oak Ridge National Laboratory, Gainesville, Tennessee, United States

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9:00 PM - L5.15
Gd-doped ZnO Thin Films for Spintronic Applications.

Deepayan Chakraborti 1 , Sudhakar Nori 1 , John Prater 2 1 , Jagdish Narayan 1
1 Materials Science & Engineering Department, North Carolina State University, Raleigh, North Carolina, United States, 2 Materials Science Division, Army Research Office, Durham, North Carolina, United States

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9:00 PM - L5.16
Structural and Magneto-transport Properties of Cr-doped In2O3 Diluted Magnetic Semiconductors.

N. Ukah 1 , R. Gupta 1 , K. Ghosh 1 , P. Kahol 1 , R. Giedd 2
1 Physics, Astronomy and Materials Science, Missouri State University, Springfield, Missouri, United States, 2 2Roy Blunt Jordan Valley Innovation Center, Missouri State University, Springfield, Missouri, United States

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9:00 PM - L5.17
Novel Nanostructured Magnetic Materials: Self-assembled Epitaxial Nanostructures.

Jagdish Narayan 1 , Gopinath Trichy 1
1 Materials Science & Engineering Department, North Carolina State University, Raleigh, North Carolina, United States

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9:00 PM - L5.19
Charge Transport in Mn Doped Polymers.

Quincy Williams 1 , Osei Amponsah 1 , Rakhim Rakhimov 1 , Alexey Aleksandrov 2 , Natalia Noginova 1
1 Center for Materials Research, Norfolk State University, Norfolk, Virginia, United States, 2 , Institute of Synthetic Polymer Materials, Moscow Russian Federation

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9:00 PM - L5.2
Site Preference of Atoms in Heusler Alloys Fe3Si and Fe2MnSi Grown on Ge(111) Toward Realization of Ge Channel Spin Transistors.

Yusuke Hiraiwa 1 , Kazumasa Narumi 2 , Atsuo Kawasuso 2 , Yoshikazu Terai 3 , Yuichiro Ando 4 , Kouji Ueda 4 , Taizoh Sadoh 4 , Kohei Hamaya 4 , Masanobu Miyao 4 , Yoshihito Maeda 1 2
1 Department of Energy Science and Technology, Kyoto University, Kyoto Japan, 2 Advanced Science Research Center, Japan Atomic Energy Agency, Takasaki Japan, 3 Department of Engineering, Osaka University, Suita Japan, 4 Department of Electronics, Kyushu University, Fukuoka Japan

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9:00 PM - L5.3
Structure and Influence of the Barrier on Heusler based Tunneling Junctions.

Christian Herbort 1 , Elena Arbelo Jorge 1 , Martin Jourdan 1
1 Institute of Physics, Johannes Gutenberg University, Mainz Germany

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9:00 PM - L5.4
An Epitaxial Full-Heusler Alloy Fe2MnSi for Group-IV-Semiconductor Spintronic Applications.

Kohei Hamaya 1 , Kenji Yamamoto 1 , Koji Ueda 1 , Yuichiro Ando 1 , Hiroyoshi Itoh 2 , Yoshihito Maeda 3 , Masanobu Miyao 1
1 Department of Electronics, Kyushu University, Fukuoka Japan, 2 Department of Pure and Applied Physics, Kansai University, Suita Japan, 3 Department of Energy Science and Technology, Kyoto University, Kyoto Japan

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9:00 PM - L5.5
Formation of Nanocrystalline Film of Sr2FeMoO6 on Si(100) by Pulsed Laser Deposition: Observation of Preferential Oriented Growth.

Helia Jalili 1 , Nina Heinig 1 , Tong Leung 1
1 Physics and Chemistry, University of Waterloo, Waterloo, Ontario, Canada

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9:00 PM - L5.6
X-ray Photoemission Study of Sr2FeMoO6 and SrMoO4 Films Epitaxially Grown on MgO(100): Near-surface Chemical-state Composition Analysis.

Helia Jalili 1 , Nina Heinig 1 , Tong Leung 1
1 Physics and Chemistry Depts, University if Waterloo, Waterloo, Ontario, Canada

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9:00 PM - L5.7
Magnetic Transitions in the Double Perovskite Sr2FeRe1-xFexO6.

Haitao Gao 1 , Martin Panthoefer 1 , Vadim Ksenofotov 1 , Joachim Barth 1 , Claudia Felser 1 , Wolfgang Tremel 1
1 , Institute fuer anorganische und analytische Chemie,Johannes Guttenberg-Universitaet Mainz, Mainz Germany

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9:00 PM - L5.8
Magnetic Resonance in Magnetic Nanoparticles: From Quantum to Classical Behavior.

Adrian Radocea 1 , Aleksandr Andreyev 2 , Vadim Atsarkin 3 , Natalia Noginova 4
1 , Cornell University, Ithaca, New York, United States, 2 , Virginia Tech, Blacksburg, Virginia, United States, 3 , Institute for Radio Engineering and Electronics, Moscow Russian Federation, 4 Center for Materials Research, Norfolk State University, Norfolk, Virginia, United States

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9:00 PM - L5.9
Gate Control of Single-electron Spins in Realistic Asymmetric Confining Potentials in III-V Semiconductor Quantum Dots.

Sanjay Prabhakar 1 , James Raynolds 1
1 College of Nanoscale Science and Engineering, State University of New York University at Albany, Albany, New York, United States

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2008-12-04   Show All Abstracts

Symposium Organizers

Claudia Felser Johannes Gutenberg University of Mainz
Arunava Gupta The University of Alabama
Burkard Hillebrands Technische Universitaet Kaiserslautern
Sabine Wurmehl Eindhoven University of Technology
L6: Half-metallic Oxides and New Ferromagnetic Semiconductors, Such as e.g., Double perovskites, Doped ZnO, Spinels, etc.
Session Chairs
Arunava Gupta
Thursday AM, December 04, 2008
Room 204 (Hynes)

10:00 AM - **L6.1
Spin Polarization in Oxides and Chalcogenides.

John M.D. Coey 1 , K. Oguz 1 , J. Alaria 1
1 Physics Department and CRANN, Trinity College, Dublin Ireland

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10:45 AM - L6.3
Surface Ferromagnetism in Antiferromagnetic Cr2O3 Thin Films.

Xi He 1 , Yi Wang 1 , N. Wu 1 , Sarbeswar Sahoo 1 , Kirill Belashchenko 1 , A. Caruso 2 , E. Vescovo 3 , Peter Dowben 1 , Alexei Gruverman 1 , Christian Binek 1
1 Physics & Astronomy, University of Nebraska, Lincoln, Lincoln, Nebraska, United States, 2 Department of Physics , University of Missouri, Kansas City KS 64110, Missouri, United States, 3 , National Sychrotron Light Source, Upton, New York, United States

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11:00 AM - L6: Oxides
BREAK

11:30 AM - L6.4
Induced Half-metallic State in Cr-based Chalcospinels: CuCr2S(Se)4-xEx (E=F, Cl, Br), CuCr2S(Se)4-x and CdCr2S(Se)4-xE’x (E’=N, P, As).

Yu-Hsiang Wang 1 3 , Mairbek Chshiev 3 , William Butler 2 3 , Arunava Gupta 1 3
1 Chemistry Dept., Uinversity of Alabama, Tuscaloosa, Alabama, United States, 3 MINT Center, University of Alabama, Tuscaloosa, Alabama, United States, 2 Physics Dept., University of Alabama, Tuscaloosa, Alabama, United States

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11:45 AM - L6.5
Effect of Particle Size and Molecular Motion on NMR and Spin Relaxation in Systems with Magnetic Nanoparticles.

Tracee Weaver 1 , Roselyn Obasi 1 , Aleksandr Andreyev 2 , Adrian Radocea 3 , Natalia Noginova 1
1 Center for Materials Research, Norfolk State University, Norfolk, Virginia, United States, 2 , Virginia Tech University, Blacksburg, Virginia, United States, 3 , Cornell University, Ithaca, New York, United States

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12:00 PM - **L6.6
Spin Injection and Giant Magnetoresistance in Ferromagnet–Superconductor Heterostructures*.

Ramesh Budhani 1 , Soumen Mandal 1
1 Condensed Matter Low-dimensional Systems Laboratory, Department of Physics, Indian Institute of Technology Kanpur, Kanpur - 208016 India

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12:30 PM - L6.7
Ferromagnetism in MgO Doped with Ni and Co.

Jagdish Narayan 1 , Sudhakar Nori 1 , Dinesh Pandya 2
1 Materials Science & Engineering Department, North Carolina State University, Raleigh, North Carolina, United States, 2 Physics Department, Indian Institute of Technology Delhi, New Delhi India

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12:45 PM - L6.8
Magnetic and Electronic Characters of Photo-induced Magnet (Al,Ru,Fe)3O4 Spinel Ferrite Thin Films.

Teruo Kanki 1 , Yasushi Hotta 1 , Naoki Asakawa 1 , Munetoshi Seki 2 , Hitoshi Tabata 2 , Hidekazu Tanaka 1 , Tomoji Kawai 1
1 Institute of Scentific and Industrial Research, Osaka University, Osaka Japan, 2 Graduate School of Engineering, University of Tokyo, Hongo, Tokyo, Japan

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L7: Advanced Characterization Methods, Including Spin Polarization Measurement
Session Chairs
Sabine Wurmehl
Thursday PM, December 04, 2008
Room 204 (Hynes)

2:30 PM - **L7.1
Atomic Short-Range Disorder in Heusler Alloys Measured by NMR.

Marek Wojcik 1
1 Division of Physics of Magnetism, Institute of Physics, Polish Academy of Sciences, Warszawa Poland

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3:00 PM - L7.2
Exchange Stiffness Constant and Magnetic Anisotropy in Co2-based Heusler Compounds.

Jaroslav Hamrle 1 , Oksana Gaier 1 , Burkard Hillebrands 1 , Horst Schneider 2 , Gerhard Jakob 2 , Martin Jourdan 3 , Takahide Kubota 3 , Yuya Sakuraba 3 , Mikihiko Oogane 3 , Yasuo Ando 3 , Claudia Felser 4
1 Fachbereich Physik and Research Center OPTIMAS, Technische Universität Kaiserslautern, Kaiserslautern Germany, 2 Institut für Physik, Johannes-Gutenberg-Universität, Mainz Germany, 3 Department of Applied Physics, Tohoku University, Sendai Japan, 4 Institute of Inorganic and Analytical Chemistry, Johannes-Gutenberg-Universität, Mainz Germany

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3:15 PM - L7.3
X-ray Magnetic Circular Dichroism in CrO2-based Heterostructures.

Patrick LeClair 1 , Arunava Gupta 1 , Manjit Pathak 1 , Gary Mankey 1 , Krishna Chetry 1 , William Butler 1
1 Department of Physics and Astronomy and MINT Center, University of Alabama, Tuscaloosa, Alabama, United States

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3:30 PM - L7.4
Magnetic and ESR Studies of Nanoparticle Co and Ni in MgO System.

Sudhakar Nori 1 , Jagdish Narayan 1 , John Prater 3 1 , Dimitri Ponarin 2 , Alex Smirnov 2 , Bill Holton 4
1 Materials Science & Engineering Department, North Carolina State University, Raleigh, North Carolina, United States, 3 Materials Science Division, Army Research Office, Durham, North Carolina, United States, 2 Department of Chemistry, North Carolina State University, Raleigh, North Carolina, United States, 4 Department of Electrical and Computer Engineering, North Carolina State University, Raleigh, North Carolina, United States

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3:45 PM - L7.5
Damping in Epitaxial CrO2(110).

Tim Mewes 1 , Hwachol Lee 1 , Krishna Chetry 2 , Claudia Mewes 1 , Arunava Gupta 2
1 Physics, University of Alabama, Tuscaloosa, Alabama, United States, 2 Chemistry, University of Alabama, Tuscaloosa, Alabama, United States

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4:00 PM - L7:Methods
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4:30 PM - **L7.6
Exploring the Electronic Structure of Heusler Compounds by Hard X-ray Photoemission Spectroscopy.

Gerhard Fecher 1
1 , Johannes Gutenberg - Universität, Mainz Germany

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