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关于举行爱沙尼亚塔尔图大学Mikhail G. Brik教授学术报告的通知

时间:2017-07-22 15:44      发布人:何秋云      阅读:124

报告题目:First-principles calculations as a powerful tool for the analysis of properties of optical materials
报 告 人:Prof. Mikhail G. Brik(University of Tartu, Estonia)
邀 请 人:彭明营 教授
报告时间:7月24日(周一)上午10:00
报告地点:发光材料与器件国家重点实验室402会议室

Abstract

Density functional theory (DFT)-based methods of calculations allow for getting a deep insight into the structural, electronic, optical, elastic, thermodynamic properties of pure and doped solids and solid solutions. In the present work the results of such calculations in application to various kinds of optical materials will be presented. The system studied and discussed are as follows: i) neat chalcopyrites and their solid solutions [1-3]; ii) Ba2LaNbO6 double perovskite doped with Mn4+ ions [4]; iii) AlxIn1-xP alloys [5]; iv) Al2O3 doped with Ti3+ ions [6]. Special attention was paid to the variation of the optical and electronic properties with composition [1, 2, 5] and location of the impurity energy levels in the host band gap [4, 6]. As an example, Fig. 1 shows the calculated band structure of pure Al2O3 and Al2O3:Ti3+ [6] with clearly seen impurity levels in the band gap of the host. Agreement with the experimental data and predictive power of the performed calculations are discussed.

[1] M.G. Brik, C.-G. Ma, J. Phys. D: Appl. Phys., 46 (2013) 285304.
[2] M.G. Brik, C.-G. Ma, Solid State Commun., 203 (2015) 69.
[3] C.-G. Ma, D.-X. Liu, T.-P. Hu, Y. Wang, Y. Tian, M.G. Brik, Sci. Adv. Mater. 8 (2015) 466.
[4] A.M. Srivastava, M.G. Brik, J. Lumin., 132 (2012) 579.
[5] C.-G. Ma, V. Krasnenko, M.G. Brik, Solid State Commun., 205 (2015) 55.
[6] M.G. Brik, Physica B (in press, https://doi.org/10.1016/j.physb.2017.02.032)

CV of Professor Mikhail G. Brik

Professor Mikhail G. Brik received his PhD degree from Kuban State University (Krasnodar, Russia) in 1995 and his Doctor of Science (habilitation) degree from the Institute of Physics, Polish Academy of Sciences (Warsaw, Poland) in 2012. Since 2007 he has been taking a Professor position at the Institute of Physics, University of Tartu, Estonia. Before that, he had been working in Kyoto University (Kyoto, Japan), 2003-2007; Weizmann Institute of Science (Rehovot, Israel), 2002; Asmara University (Asmara, Eritrea), 2000-2001; Kuban State University (Krasnodar, Russia), 1995-2000. He is also a Guest Professor at Chongqing University of Posts and Telecommunications (China) and Jan Dlugosz University (Poland). Since 2015 he serves as one of the Editors of the “Optical Materials” journal (Elsevier). His area of scientific interests covers theoretical spectroscopy of transition metal and rare earth ions in optical materials, crystal field theory, ab initio calculations of physical properties of pure and doped functional compounds. He is a co-editor of two books, author of 11 book chapters and about 330 papers in international journals. According to Google Scholar, his publications were cited more than 4450 times with h-index=33. In 2013 he has received the State Prize of Republic of Estonia in the field of exact sciences.