Symposium NM01-Moire Superlattices in 2D Materials

Superimposing two periodic lattices with different lattice constants or a relative twist generates a moiré superlattice with longer periodicity. Superlattices are a powerful approach to create materials with novel and highly tunable mechanical, optical and electrical properties. In particular, moiré superlattices composed of twisted two-dimensional (2D) material bilayers or heterostructures have generated excitement as they feature flat bands, strongly correlated electron states, and novel topologies leading to Mott insulators, unconventional superconductivity, anomalous quantum Hall effect, moiré confined excitons, microscale superlubricity, etc. This symposium will bring together a group of leading experts to address the diverse physics, chemistry and materials challenges and opportunities, including the synthesis of the moiré superlattices, interfacial mechanics, superlattice reconstructions, novel electronic phases, excitonic and optical states, multiscale modeling to accurately predict structure and properties, and local probes for measuring electronic states at the moiré scale. The symposium will not only give an overview of the current state of this dynamic research field, but also highlight future avenues to advance moiré materials for applications in electronics, mechanically reconfigurable materials, transducers, and quantum information.

Topics will include:

Experiment and theory of structures, properties and applications of moiré superlattices
Synthesis and manufacturing strategies to generate moiré superlattices
Interfacial structure and reconstruction mechanics of the superlattice at van der Waals interfaces
Moiré superlattices in non-van der Waals materials
Manipulation of moiré superlattices via lattice alignment, twist, and strain
Optical spectroscopy and transport measurements probing superlattice states
Imaging moiré superlattices using local probes such as scanning probe, tip-enhanced optical probe and electron microscopy, etc.
Multiscale theories for accurately predicting the structure and electronic properties of moiré superlattices, ranging from ab initio calculations, dislocation models, electronic continuum methods, many-body approaches
Optical, electronic, mechanical, and topological properties of moiré superlattices
Novel physics resulting from the emerging topologies and highly correlated electron states such as superconductivity, ferromagnetism, ferroelectricity, Mott insulators, interlayer and moiré exciton confinement and tuning
Twistronics, straintronics, spintronics and valleytronics applications of moiré superlattices

Invited Speakers:

Kwabena Bediako (University of California, Berkeley, USA)
Yong-Tao Cui (University of California, Riverside, USA)
Dmitry Efetov (Institut de Ciències Fotòniques, Spain)
Libai Huang (Purdue University, USA)
Pinshane Huang (University of Illinois at Urbana-Champaign, USA)
Shahal Ilani (Weizmann Institute of Science, Israel)
Manish Jain (Indian Institute of Technology Bangalore, India)
Chenhao Jin (University of California, Santa Barbara, USA)
Jeanie Lau (The Ohio State University, USA)
Gwan Hyoung Lee (Seoul National University, Republic of Korea)
Adina Luican Mayer (University of Ottawa, Canada)
Allan MacDonald (The University of Texas at Austin, USA)
Jiwoong Park (The University of Chicago, USA)
Diana Qiu (Yale University, USA)
Charles Tschirhart (University of California, Santa Barbara, USA)
Feng Wang (University of California, Berkeley, USA)
Stephen Wu (University of Rochester, USA)
Mathew Yankowitz (University of Washington, USA)
Wang Yao (The University of Hong Kong, Hong Kong)
Tianchong Zhu (University of California, Berkeley, USA)

Symposium Organizers

Arend van der Zande

University of Illinois at Urbana-Champaign

Mechanical Engineering

USA

Johannes Lischner

Imperial College London

Department of Materials

United Kingdom

Sufei Shi

Rensselaer Polytechnic Institute

USA

Jairo Velasco Jr.

University of California, Santa Cruz

Physics

USA

Topics

2D materials chemical vapor deposition (CVD) (deposition) electronic structure Hall effect magnetooptic photoreflectance scanning probe microscopy (SPM) scanning transmission electron microscopy (STEM) scanning tunneling microscopy (STM) transmission electron microscopy (TEM)