北京大学量子材料科学中心报告 | 清华大学杨乐仙教授？报告摘要 With the unique capability of tracking the dynamic evolution of electronic structure in the time domain, time- and angle-resolved photoemission spectroscopy (trARPES) has become a more and more important research technique in condensed matter physics. In this talk, I will introduce our recent work in correlated materials. In iron based compounds, we observe ultrafast coherent modulation of the electronic structure and possible metastable states. In the canonical charge density wave materials Rb0.3MoO3 , we observe ultrafast laser induced melting of the long-range order, which precedes the response of coherent nuclear atoms. We argue that the incoherent lattice phonons play decisive role in the melting of the charge-density wave in Rb0.3MoO3 , which should be generically considered in the study of laser induced phase transitions. 题 目：TrARPES Studies on Correlated Materials 报告人：杨乐仙 单 位：清华大学 时 间：2019年2月27日 地 点：北京大学 报告视频原文链接：https://mp.weixin.qq.com/s/Sxc-dRl4wTejrge_3p0tjw 个人简介 Lexian Yang graduated from Fudan University with a PhD degree in physics. He worked as a postdoctoral researcher with Humbold fellowship in Kiel University from 2011 to 2014. He became an assitant professor in Physics department, Tsinghua University in 2016 and is an associated professor since 2019. His main research interest is the electronic structure of quantum material on ultra-short time scale and microscopic spatial scales.查看更多2个回答 . 15人已关注
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