14:20 - 14:45
Room: Room2
Invited talk
Chair/s:
Alex Demkov
(INVITED) Metallic ferroics: Coexistence of noncentrosymmetry, metallicity, electron correlation and magnetism
Venkatraman Gopalan 1, Shiming Lei 1, Greg Stone 1, Danilo Puggioni 2, Rondinelli James 2, Zhiqiang Mao 3, Xiaoyu Ji 1
1 Pennsylvania State University, University Park, United States
2 Northwestern university, Evanston, United States
3 Tulane University, Tulane, United States

Metals are defined in condensed matter as materials that possess a Fermi surface. There is a distinct lack of bandgap, and the high electrical conductivity therefore screens the driving force for any polar displacement modes. However, in correlated electronic oxides, one can simultaneously possess a condensed noncentrosymmetric mode as well as a metallic Fermi surface. I will discuss one such material that is a room temperature metal, exhibits polar domains, charged and uncharged domain walls, a metal insulator transition, and magnetism. Thus such materials can possess a remarkable coexistence of polar metallicity, correlation physics, and multiferroicity.


Reference:
We-S48-O-01
Presenter/s:
Venkatraman Gopalan
Presentation type:
Oral communication
Room:
Room2
Chair/s:
Alex Demkov
Date:
Wednesday, September 6th, 2017
Time:
14:20 - 14:45
Session times:
14:20 - 14:45