深圳大学高等研究院
报告摘要:
Phonon transport is critical to many applications including thermal management and thermoelectrics. Thanks to open-source codes like ShengBTE[1], it has become mainstream to study the phonon transport from first principles. In this talk, I will first review the formalism of phonon Boltzmann transport equation, and discuss the computational challenges. I will then show how the calculations advance our understanding of phonon transport in thermoelectric skutterudites[2], elemental metals[3] and graphene[4,5]. Finally I will illustrate the predictive power of calculations through recent discovery of high thermal conductivity material BAs[6,7], and present our prediction of a high thermal conductivity material TaN[8].
[1] W. Li, J. Carrete, N. Katcho, and N. Mingo, Comput. Phys. Commun. 185, 1747 (2014) (http://www.shengbte.org/)
[2] W. Li and N. Mingo, PRB 89, 91, 144304 (2015)
[3] Y. Chen, J. Ma and W. Li, PRB 99, 020305(R) (2019)
[4] X. Yang, Z. Liu, F. Meng, and W. Li, PRB 104, L100306 (2021)
[5] Han, Yang, Sullivan, Feng, Shi, Li, and Ruan, PRL 128, 045901 (2022)
[6] L. Lindsay, D. A. Broido, and T. L. Reinecke, PRL 111, 025901 (2013);
[7] J. S. Kang et al., Science 361, 575 (2018); S. Li et al., Science 361, 579 (2018); F. Tian et al., Science 361, 582 (2018).
[8] Kundu, Yang, Ma, Ruan, Feng, Carrete, Madsen, and Li, PRL 126, 115901 (2021)
报告人简介:
李武,2016年至今为深圳大学高等研究院研究员。2006年本科毕业于郑州大学,2011年于中科院物理所获博士学位(德国马普学会联合培养)。2011-2013年在法国原子能委员会(CEA)从事博士后研究,2013-2015年作为玛丽居里学者在荷兰SCM公司从事博士后研究,2015年在CEA任研究员。主要从事材料输运性质的理论计算研究,开发的 ShengBTE(声BTE)软件为研究晶格热导率的国际通用软件,大大推动了声子输运、微纳尺度传热和热电材料等领域的发展。至今在PRL等期刊发表通讯/第一作者论文40余篇,论文总引用5400余次(Google Scholar)。入选2021年全球前2%顶尖科学家“终身科学影响力”排行榜。
邀请人:孟 胜 研究员(9396)
联系人:张 萃 副研究员(8609)