报告题目：Lecture of LINVARIANT and a Recent Application: Writting a Single-Byte Polar Skyrmion

报告嘉宾：Peng Chen, Guangdong Technion - Israel Institute of Technology

报告时间：2025年1月2日上午10:00

报告地点：吉林大学中心校区唐敖庆楼B521报告厅

嘉宾简介

Dr. Peng Chen is an Associate Professor at the Guangdong Technion - Israel Institute of Technology (GTIIT), Shantou, China. His research focuses on ferroelectric and multiferroic materials, light-induced exotic phases of matter, and multiscale simulation techniques. To learn more about his latest activities, please visit the Computational Condensed Matter and Materials group at GTIIT: https://sites.gtiit.edu.cn/ccmm/

Peng earned his Ph.D. in Theoretical Physics from the Institute of Physics, Chinese Academy of Sciences in 2017. As part of his doctoral journey, he was a visiting scholar at the Luxembourg Institute of Science and Technology. From 2017 to 2019, he pursued postdoctoral research at the Italian Institute of Technology, followed by a Research Associate position at the University of Arkansas from 2019 to 2024. In October 2024, Peng joined GTIIT.

讲座摘要

In this mini-lecture, I will introduce LINVARIANT, our in-house code developed for constructing effective Hamiltonians to study structural phase transitions. Although the effective Hamiltonian method has demonstrated significant power, its theoretical foundations are just drawn from standard textbooks. I will outline the principles of LINVARIANT and highlight its recent applications in the field of noncollinear ferroelectrics. Specifically, I will discuss our conceptual approach to strategically encode individual polar skyrmions at designated locations, exploring new design strategies for utilizing noncollinear ferroelectrics.