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图 | Tomasz Dietl

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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

●【大学频道】卡弗里理论科学研究所呈献 | 西安交通大学刘博教授：Chiral orbital magnetism and topological supersolids in ultracold atoms

●【大学频道】卡弗里理论科学研究所呈献 | 丹麦技术大学Karsten W. Jacobsen教授：Computational screening of light absorbing materials

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