【学术视频】2019国际半导体前沿论坛 | Tomasz Dietl of Polish Academy of Sciences
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图 | Tomasz Dietl
题 目：A new chapter of semiconductors with magnetic impurities
报告人：Tomasz Dietl单 位：Polish Academy of Sciences
时 间：2019-10-13
地 点：中国科学院半导体研究所扫码观看精彩报告视频
报告摘要
The rise of magnetic quantum materials opens for magnetic semiconductors a new chapter involving: (i) functionalities of spin polarized topological boundary states; (ii) magnetic proximity effects, and (iii) the control of magnetism by gating and by a number of layers in van der Waals heterostructures. Importantly, by detaching few-layer thick epitaxial films from substrates, the "lego" method can be extended to virtually any magnetic semiconductor. In this context, I will address the question on whether it is possible to extend the functionalities of magnetic quantum materials to above room temperature. Encouraging examples of compounds in which the p-d Zener mechanism on the one hand and the superexchange on the other lead to magnetic order persisting up to high temperatures will be discussed. The issue of d0 ferromagnetism will be touched upon bringing up the case of organic semiconductors and bilayer graphene, in which spin order appears with no magnetic impurities, albeit so far only at helium temperatures. In the main body of the talk, I will discuss a superconductivity-like behavior discovered at interfaces of metals and topological materials by point-contact spectroscopy, and will show corresponding data for magnetic topological crystalline insulators serving to elucidate a possible origin of the phenomenon.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
International Semiconductor Frontier Forum (ISFF) 2019 is the first time for the Institute of Semiconductors CAS and the Journal of Semiconductors to jointly organize this annual conference. This year's conference brings together over 200 high-ranking guests from around the world. ISFF 2019 aims to provide a valuable opportunity for engineers and researchers to communicate their latest works and related breaking progress in Semiconductor Technology.
Conference Themes:
1) Physics, Materials, and Devices of Conventional Semiconductors;
2) Organic and Perovskite Semiconductors Based Optoelectronic Devices;
3) Optoelectronic Devices and Integration;
4) Microelectronic Devices and (Integrated) Circuits;
5) Semiconductor Spintronics; 6) Flexible Electronics;
7) Semiconductors and New Energy;
8) Wide Bandgap Semiconductors;
9) Semiconductor Quantum Devices and Physics;
10) Two-Dimensional Materials and Related Physics and Devices.
(The topics include but not limited to these.)
JOS定位于具有国际影响力的半导体科技领域旗帜性期刊，报道内容覆盖半导体物理、材料、器件、工艺和集成电路，发文方向包括但不限于：传统半导体相关理论、材料与器件；有机及钙钛矿半导体光电器件；半导体光电子器件及集成；微电子器件与集成电路；半导体自旋电子学；柔性电子学；半导体新能源；宽禁带半导体；半导体量子物理与器件；二维材料及器件物理。
JOS始终坚持办刊宗旨，面向国际半导体科学与技术前沿，及时报道半导体科技领域最新成果和进展，国际影响力不断提升，经过40年的发展，JOS已成为我国半导体科学与技术和相关领域最重要的学术传播和交流平台。
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