The origin of anomalous mass-dependence of thermal conductivity in Janus XBAlY (X = Se, S, Te; Y = S, Se, O; X ≠ Y) monolayers

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成果类型：

期刊论文

作者：

Yuan, Guotao;Ouyang, Yulou;Tan, Rui;Yao, Yongsheng;Zeng, Yujia;...

通讯作者：

Ouyang, YL;Chen, J

作者机构：

[Tang, Zhenkun; Tan, Rui; Yuan, Guotao; Yao, Yongsheng; Ouyang, YL; Ouyang, Yulou] Hengyang Normal Univ, Coll Phys & Elect Engn, Hengyang 421002, Peoples R China.

[Zeng, Yujia] Hunan Univ Sci & Technol, Sch Mat Sci & Engn, Xiangtan 411201, Peoples R China.

[Zeng, Yujia] Hunan Univ Sci & Technol, Hunan Prov Key Lab Adv Mat New Energy Storage & Co, Xiangtan 411201, Peoples R China.

[Zhang, Zhongwei; Chen, Jie] Tongji Univ, Ctr Phonon & Thermal Energy Sci, Sch Phys Sci & Engn, China EU Joint Lab Nanophonon,MOE,Key Lab Adv Micr, Shanghai 200092, Peoples R China.

通讯机构：

[Ouyang, YL ] H

[Chen, J ] T

Hengyang Normal Univ, Coll Phys & Elect Engn, Hengyang 421002, Peoples R China.

Tongji Univ, Ctr Phonon & Thermal Energy Sci, Sch Phys Sci & Engn, China EU Joint Lab Nanophonon,MOE,Key Lab Adv Micr, Shanghai 200092, Peoples R China.

语种：

英文

关键词：

Antimony compounds;Boltzmann equation;Chemical bonds;Monolayers;Phonon scattering;Selenium compounds;Thermal conductivity;Asymmetric geometry;Atomic mass;Boltzmann's transport equations;Comparatives studies;High-κ;Learning potential;Machine-learning;Phonon scattering process;Thermal transport properties;Three-phonon scattering;Phonons

期刊：

Journal of Applied Physics

ISSN：

0021-8979

年：

2024

卷：

135

期：

页码：

125103

DOI：

10.1063/5.0201047

基金类别：

National Natural Science Foundation of China10.13039/501100001809 [12075168, 12205220]; National Natural Science Foundation of China; Key Laboratory of Micro-nano Energy Materials and Application Technologies, University of Hunan Province [21B0635]; Scientific Research Fund of Hunan Provincial Education Department [2023JJ40094]; Hunan Provincial Natural Science Foundation of China [2021QD12]; Hengyang Normal University

机构署名：

本校为第一且通讯机构

院系归属：

物理与电子工程学院

摘要：

Owing to the unique asymmetric geometry, Janus monolayer compounds exhibit various exotic thermal properties and have promising applications in thermal management. In this study, we combine machine learning potentials and the phonon Boltzmann transport equation to perform a comparative study of the thermal transport properties in Janus XBAlY (X = Se, S, Te; Y = S, Se, O; X ≠ Y) monolayers. Our findings unveil a thermal conductivity ( κ p ) ranking as SeBAlS > TeBAlO > SBAlSe, contradicting the conventional expectation that a higher κ p...

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The origin of anomalous mass-dependence of thermal conductivity in Janus XBAlY (X = Se, S, Te; Y = S, Se, O; X ≠ Y) monolayers

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