【大学频道】卡弗里理论科学研究所呈献 | 波兰科学院Tomasz Dietl教授

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图 | Tomasz Dietl

题   目：Phase separations and nematicity in dilute magnetic materials报告人：Tomasz Dietl单   位：Institute of Physics, Polish Academy of Sciences, Warsaw, Poland时   间：2020-01-15地   点：中国科学院大学

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报告提纲

Semiconductors and topological materials doped with magnetic impurities attract a considerable attention due to a fascinating physics and nonospintronic functionalities associated with exchange coupling between band carries and localized spins. However, there is a growing amount of evidences that d-shells of magnetic impurities contribute also to bonding, which can affect their spatial distribution and modify key properties, such as magnetic ordering temperature. It has recently been experimentally demonstrated that the resulting phase separation (spinodal decomposition) can be anisotropic and result in the hitherto puzzling rotational symmetry breaking (i.e., nematic characteristics) revealed in a certain class of dilute magnetic semiconductors. This finding put in a new light a possible origin of nematicity in other systems, such as unconventional superconductors and modulation doped semiconductor quantum wells, in which rotational symmetry breaking has so far been assigned to unidirectional spontaneous ordering of spin, orbital or charge degrees of freedom.

个人简介

Professor Tomasz Dietl obtained his PhD from the Institute of Physics, Polish Academy of Sciences in Warsaw, where he is presently a head of the International Centre for Interfacing Magnetism and Superconductivity with Topological Matter "MagTop". He is also a P.I. at the Advanced Institute for Materials Research at Tohoku University in Sendai, Japan.  His current research interests are focused on the development of material systems and device concepts for nanospintronics of topological materials, ferromagnetic and antiferromagnetic semiconductors, and of hybrid metal/ semiconductor nanostructures. According to WoS, the papers he co-authored have been cited more than 20,000 times. 

会议简介

会议名称：The 2nd Kavli ITS Workshop on Magnetic Semiconductors

会议地点：中国科学院大学

会议时间：2020-01-15

主办方：中国科学院大学卡弗里理论科学研究所、中国科学院物理研究所

—— ——往期精彩回顾—— ——●【学术视频】2019国际半导体前沿论坛 | Tomasz Dietl of Polish Academy of Sciences:A new chapter of semiconductors with magnetic impurities●【大学频道】卡弗里理论科学研究所呈献 | 复旦大学张颖研究员：Simultaneous attenuation of both self - lnteraction error and nondynamic correlation error in density functional theory●【大学频道】卡弗里理论科学研究所呈献 | 中国科大苑震生教授：Many-body correlations in a spin-dependent optical superlattice●【大学频道】卡弗里理论科学研究所呈献 | 中国科大郑晓研究员：Improving density functional calculations for molecular band gaps and electron affinities●【大学频道】卡弗里理论科学研究所呈献 | 清华大学徐勇：Scheme to Equilibrate the Hall Response of Topological Systems from Coherent Dynamics●【大学频道】卡弗里理论科学研究所呈献 | 山东大学刘文剑教授：Advances in TD-DFT●【大学频道】卡弗里理论科学研究所呈献 | 北京大学李新征副教授：The quantum nature of nuclei and its influence●【大学频道】卡弗里理论科学研究所呈献 | 中国科大陈宇翱教授：Critical dynamics across the atomic resonance

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