December 1 - 6, 2024
Boston, Massachusetts
Symposium Supporters
2024 MRS Fall Meeting & Exhibit
QT03.08.03

Finite-Temperature Hole-Magnon Dynamics in an Antiferromagnet

When and Where

Dec 4, 2024
3:30pm - 3:45pm
Sheraton, Fifth Floor, The Fens

Presenter(s)

Co-Author(s)

Kaijun Shen1,Kewei Sun2,Maxim F. Gelin2,Yang Zhao1

Nanyang Technological University1,Hangzhou Dianzi University2

Abstract

Kaijun Shen1,Kewei Sun2,Maxim F. Gelin2,Yang Zhao1

Nanyang Technological University1,Hangzhou Dianzi University2
Employing the numerically accurate multiple Davydov Ansatz in combination with the thermo-field dynamics approach, we delve into the interplay of the finite-temperature dynamics of holes and magnons in an antiferromagnet, which allows for scrutinizing previous predictions from the self-consistent Born approximation while offering, for the first time, accurate finite-temperature computation of detailed magnon dynamics as a response and a facilitator to the hole motion. The study also uncovers a pronounced temperature dependence of the magnon and hole populations, pointing to the feasibility of potential thermal manipulation and control of hole dynamics. Our methodology can be applied not only to the calculation of steady-state angular-resolved photoemission spectra but also to the simulation of femtosecond terahertz pump–probe and other nonlinear signals for the characterization of antiferromagnetic materials.

Symposium Organizers

Paolo Bondavalli, Thales Research and Technology
Nadya Mason, The University of Chicago
Marco Minissale, CNRS
Pierre Seneor, Unité Mixte de Physique & Univ. Paris-Saclay

Session Chairs

Thierry Angot
Paolo Bondavalli

In this Session