个人简介

杨小龙博士，重庆大学物理学院副教授，硕士生导师

E-mail: yangxl@cqu.edu.cn

办公室：重庆大学虎溪校区理科大楼物理学院5楼LE525室

教育背景及工作经历

2021.07-至今，重庆大学，物理学院应用物理系，副教授

2019.07-2021.07  深圳大学， 高等研究院， 博士后

2017.10-2018.11  美国普渡大学，机械与工程系，访问学者

2015.03-2019.06  西安交通大学，材料科学与工程，博士

2013.09-2015.03，西安交通大学，凝聚态物理，硕士

2009.09-2013.06，兰州大学，材料物理，本科

研究方向

1.      微纳尺度声子传热的理论计算

2.      基于电子结构的多尺度模拟

3.      电声耦合相关输运理论研究

4.      低维材料，热电材料，光谱（拉曼，光吸收等）模拟

5.      电催化（HER，ORR，OER等）

科研概况

主要从事热、电、以及热电输运的理论计算工作。研究内容包括但不限于低维材料，热电材料，电声耦合，光谱（拉曼，光吸收等），电催化；研究方法包括第一性原理计算、分子动力学模拟、机器学习等。现主持一项国自然青年基金，迄今在Nature、Nature Communications、Physical Review Letters、Nano Letters、ACS Nano、Materials Today Physics、2D Materials、Applied Physics Letters、Physical Review Materials、Physical Review B、ACS Appl. Mater. Interfaces等国际高水平期刊发表学术论文30余篇。同时，还为Physical Review B、Physical Review Materials、Physical Review Applied、Scientific Reports、Applied Physics Letters等国际知名期刊审稿。

主持的科研项目

1.  国家自然科学基金青年基金项目,12004254, 应变调控下四声子散射和电声耦合作用对二维材料热输运性质的影响, 2021.01-2023.12，30万元,在研。

2.  重庆大学人才启动基金。

所获荣誉

深圳市高层次人才计划孔雀计划C类

发表论文（^#共同第一作者，*通讯作者）

1. Z Han#, X. Yang#, SE. Sullivan, T. Feng, L. Shi, W. Li, and X. Ruan, Raman Linewidth Contributions from Four-Phonon and Electron-Phonon Interactions in Graphene, Phys. Rev. Lett. 128 (4), 045901(2022). (代表性论文)

2. X. Yang, Z. Liu, F. Meng, and W. Li, Tuning the phonon transport in bilayer graphene to an anomalous regime dominated by electron-phonon scattering, Phys. Rev. B: Letter 104, L100306 (2021). (代表性论文)

3. X. Yang, A. Jena, F. Meng, S. Wen, J. Ma, X. Li, and W. Li, Indirect electron-phonon interaction leading to significant reduction of thermal conductivity in graphene, Materials Today Physics 18, 100315 (2021). (代表性论文)

4. X. Yang, T. Feng, J. S. Kang, Y. Hu, J. Li, and X. Ruan, Observation of strong higher-order lattice anharmonicity in Raman and infrared response, Phys. Rev. B: Rapid Communications 101, 161202(R) (2020). (Selected as an Editors’ Suggestion, 代表性论文)

5. X. Yang, T Feng, J Li, and X Ruan, Stronger role of four-phonon scattering than three-phonon scattering in thermal conductivity of III-V semiconductors at room temperature, Phys. Rev. B 100, 245203 (2019). (代表性论文)

6. X. Yang, T. Feng, J. Li, and X. Ruan, Evidence of fifth- and higher-order phonon scattering entropy of zone-center optical phonons, Phys. Rev. B, 105, 115205 (2022). (代表性论文)

7. Z. Tong, J. Peoples, X. Li, X. Yang, H. Bao and X. Ruan, Atomistic characteristics of ultra-efficient radiative cooling paint pigments: the case study of BaSO4, Mater. Today Phys. 18, 100658 (2022).

8. Y. Luo, X. Yang, T. Feng, J. Wang, X. Ruan, Vibrational hierarchy leads to dual-phonon transport in low thermal conductivity crystals, Nature Communications,11 (1), 1-10 (2020).

9. A. Kundu, X. Yang, J. Ma, T. Feng, J. Carrete, X. Ruan, G. K. H. Madsen, W. Li, Ultrahigh thermal conductivity in θ-phase tantalum nitride, Phys. Rev. Lett., 126, 115901 (2021).

10. Z. Liu, X. Yang, B. Zhang, X. Li, and W. Li, High thermal conductivity of wurtzite boron arsenide predicted by including four-phonon scattering with machine learning potential, ACS Appl. Mater. Interfaces, 13 (45), 53409-53415 (2021).

11. Z. Han; X. Yang; W. Li; T. Feng, and X. Ruan, FourPhonon: An extension module to ShengBTE for computing four-phonon scattering rates and thermal conductivity, Computer Phys. Commun., 270, 108179 (2021).

12. T. He#, W. Wang#,X. Yang#, Z. Wang, Z. Shan, M. Jin, and Y. Yin, Inflating hollow nanocrystals through a repeated Kirkendall cavitation process, Nature Communications 8, 1261 (2017).

13. W. Wang#, T. He#, X. Yang#, Y. Liu, C. Wang, J. Li, A. Xiao, K. Zhang, X. Shi, and M. Jin, General Synthesis of Amorphous PdM (M = Cu, Fe, Co, Ni) Alloy Nanowires for Boosting HCOOH Dehydrogenation, Nano Letters 21, 8, 3458–3464 (2021).

14. T. He#, W. Wang#, X. Yang#, F. Shi, Z. Ye, Y. Zheng, F. Li, J. Wu, Y. Yin*, and M. Jin, Deposition of Atomically Thin Pt Shells on Amorphous Palladium Phosphide Cores for Enhancing the Electrocatalytic Durability, ACS Nano 15, 4, 7348 (2021).

15. X. Yang and W. Li, Optimizing phonon scattering by tuning surface- interdiffusion-driven intermixing to break the random-alloy limit of thermal conductivity, Phys. Rev. Mater. 2, 015401 (2018).

16. S. Huang#, M. Segovia#, X. Yang#, Y. R. Koh, Y. Wang, D Ye Peide, W. Wu, A. Shakouri, X. Ruan, X. Xu. Anisotropic thermal conductivity in 2D tellurium, 2D Materials 7 (1), 015008 (2019).

17. X. Yang, J. Carrete and Z. Wang, Optimizing phonon scattering by nanoprecipitates in lead chalcogenides, Appl. Phys. Lett. 108, 113901 (2016).

18. X. Yang, J. Lin, G. Qiao and Z. Wang, “Atomistic mechanisms governing stability change of zinc antimony thermoelectrics”, Appl. Phys. Lett. 106, 013904 (2015)

19. X. Yang, J. Carrete and Z. Wang, “Role of force-constant difference in phonon scattering by nano-precipitates in PbTe”, J. Appl. Phys. 118, 085701 (2015).

20. T. He#, W. Wang#, F. Shi#, X. Yang, X. Li, J. Wu, Y. Yin and M Jin, “Mastering the surface strain of Pt catalysts for efficient electrocatalysis”, Nature, 598 (7879), 76-81 (2021).

21. Z. Wang, X. Yang, D. Feng, H. Wu, L. Zhao, J. Carrete, C. Li, S. Cheng, G. Yang and J. He, Understanding phonon scattering by nanoprecipitates in potassium-doped lead chalcogenides, ACS Appl. Mater. Interfaces 9 (4), 3686–3693 (2017).

22. Z. Zhu#, X. Yang#, M. Huang, Q. He, G. Yang and Z. Wang, Mechanisms governing phonon scattering by topological defects in graphene nanoribbons, Nanotechnology 27, 055401 (2016).

23. G. Guo, X. Yang, J. Carrete, and W. Li, Revisiting the thermal conductivity of Si, Ge and diamond from first principles: roles of atomic mass and interatomic potential, J. Phys.: Condensed Matter 33, 285702 (2021).

24. Z. Tong, X. Yang, T. Feng, H. Bao, and X. Ruan, First-principles predictions of temperature-dependent infrared dielectric function of polar materials by including four-phonon scattering and phonon frequency shift, Phys. Rev. B 101, 125416 (2020).

25. T. Feng, X. Wu, X. Yang, P. Wang, L. Zhang, X. Du, X. Wang, S. T. Pantelides, Thermal

conductivity of HfTe₅: a critical revisit, Adv. Func. Mater. 30, 1907286 (2020). (Selected as a Cover Paper)

26. T. Feng, X. Yang, Xiulin Ruan. Phonon anharmonic frequency shift induced by four-phonon scattering calculated from first principles, J. Appl. Phys. 124, 145101 (2018).

27. Y Luo, X Yang, J Wang, Hierarchical thermal transport mechanisms in Yb2Si2O7 multifunctional thermal and environmental barrier coating (TEBC) material, Scripta Materialia 194, 113704(2021).

28. Y. Cheng, X. Yang, et al., Abnormal In-Plane Thermal Conductivity Anisotropy in Bilayer Α-Phase Tellurene, SSRN Electronic Journal, in press (2022)

29. Z. Wu, X. Yang, Z. Wang. Size effect on the spontaneous coalescence of nanowires. Nanotechnology 30, 245601(2019).

30. S Yu, Y Wang, Y Song, L Xia, X Yang, H Fang, Q Li, X Li, Hole doping induced half-metallic itinerant ferromagnetism and giant magnetoresistance in CrI₃ monolayer, Applied Surface Science 535, 147693 (2020).

31. X. Yang*, J. Tiwari, T. Feng*, Reduced anharmonic phonon scattering cross-section slows the decrease of thermal conductivity with temperature, Materials Today Physics, accepted (2022). (代表性论文)