报告题目:A ferroelectric-like transition in metallic oxide LiOsO3
报告人:Dr. Kazunari Yamaura
报告人单位:National Institute for Materials Science (NIMS)
and
邀请人:徐明祥
时间:2013年10月14号上午10点
地点:田家炳楼南203
报告摘要:Metals cannot exhibit ferroelectricity because static internal electric fields are screened by conduction electrons [1], but in 1965, Anderson and Blount predicted the possibility of a “ferroelectric” metal, in which a ferroelectric-like transition occurs in the metallic state [2]. Up to now, no clear example of such a material has been identified. Here we report on a centrosymmetric (R
[1] Lines ME, Glass AM. Principles and Applications of Ferroelectrics and Related Materials:
[2]
[3] Boysen H, Altorfer F. A neutron powder investigation of the high-temperature structure and phase transition in LiNbO3. Acta Cryst 1994; B50: 405-414.
[4] Shi YG, Guo YG, Wang XX , et al. A ferroelectric-like transition in a metal. Nature Mater 2013.
Kazunari Yamaura研究员简历:
1997年,Kyoto University, Japan,Ph.D. (Science)
1997年,Princeton University (US) , Postdoctoral Fellow
2000年,National Institute for Research in Inorganic Materials
(NIRIM; a predecessor of NIMS), Postdoctoral Researcher
2001年,NIMS, guest researcher
2004年,NIMS, Senior Researcher
2007年,NIMS, Principal Researcher.
Research interests:
1. New materials research on solid-state oxides and non-oxides focusing on correlated electrons behaviors such as superconductivity, multi-ferroic properties, and half-metal properties.
2. Materials synthesis, advanced characterizations, and studies of materials properties, all aimed at developing materials that have potential for applications.