xuyong

Assistant Prof. Xu / Yong

Department of Physics, Tsinghua University

RIKEN Center for Emergent Matter Science (CEMS)

Email: yongxu@mail.tsinghua.edu.cn  yong.xu@riken.jp 

 

2015 - present

Assistant Professor:                               

Department of Physics, Tsinghua University

 

2015 - present

Unit Leader:                                      

RIKEN Center for Emergent Matter Science (CEMS)

 

2013 - 2015

Research Scholar:                                 

Department of Physics, Stanford University
Advisor: Prof. Shou-Cheng Zhang

 

2011 - 2013

Alexander von Humboldt Fellow:  

 

2010 - 2011               

Postdoc (Max Planck Scholarship):                  

Theory Department, Fritz Haber Institute of Max Planck Society
Advisor: Prof. Matthias Scheffler

 

Education:

 

2005 - 2010

Ph.D. in Condensed Matter Physics:                  
Institute for Advanced Study, Tsinghua University
Advisor: Prof. Bing-Lin Gu and Prof. Wenhui Duan

 

2001 - 2005

B.S. in Physics:                                   

Department of Physics, Tsinghua University

 

Honors:

National Thousand Young Talents Program of China (2014)

Alexander von Humboldt Fellowship (2011-2013)

 

Research Interests:

Develop theoretical methods for studying quantum thermal, electronic, and thermoelectric transport at the mesoscopic scale

Understand/predict unusual quantum phenomena and novel material properties

Design high-performance functional materials and devices for (opto-)electronics, thermoelectrics, and thermal management.

 

Publications                                            

2016

Minghua Guo^#, Zhenyu Wang^#, Yong Xu^#, Huaqing Huang, Yunyi Zang, Chang Liu, Wenhui Duan, Zhongxue Gan, Shou-Cheng Zhang, Ke He*, Xucun Ma, Qikun Xue and Yayu Wang*.

Tuning thermoelectricity in a Bi₂Se₃ topological insulator via varied film thickness

New J. Phys. 18, 015008 (2016).

 

2015

Fengfeng Zhu^#, Wei-Jiong Chen^#, Yong Xu^#, Chun-Lei Gao, Dan-Dan Guan, Canhua Liu, Dong Qian*, Shou-Cheng Zhang, Jin-Feng Jia*.
Epitaxial Growth of Two-Dimensional Stanene
Nature Mater. 14, 1020 (2015).

 

Yong Xu, Peizhe Tang, Shou-Cheng Zhang.
Large-gap quantum spin Hall states in decorated stanene grown on a substrate
Phys. Rev. B 92, 081112(R) (2015).

 

Wu-Jun Shi, Junwei Liu, Yong Xu*, Shi-Jie Xiong, Jian Wu, and Wenhui Duan*.

Converting normal insulators into topological insulators via tuning orbital levels

Phys. Rev. B 92, 205118 (2015).

 

Pengcheng Chen, Yong Xu, Na Wang, Artem R. Oganov, Wenhui Duan*.
Effects of ferroelectric polarization on surface phase diagram: Evolutionary algorithm study of the BaTiO₃(001) surface
Phys. Rev. B 92, 085432 (2015).

 

Lu Zhao*, Jianfeng Wang, Junwei Liu, Yong Xu, Bing-Lin Gu, Qi-Kun Xue, Wenhui Duan*.
Electronic analogue of chiral metamaterial: Helicity-resolved filtering and focusing of Dirac fermions in thin films of topological materials
Phys. Rev. B 92, 041408(R) (2015).

 

Jinsong Zhang^#, Xiao Feng^#, Yong Xu^#, Minghua Guo, Zuocheng Zhang, Yunbo Ou, Yang Feng, Kang Li, Haijun Zhang, Lili Wang, Xi Chen, Zhongxue Gan, Shou-Cheng Zhang, Ke He*, Xucun Ma, Qi-Kun Xue, Yayu Wang*.
Disentangling the magnetoelectric and thermoelectric transport in topological insulator thin films
Phys. Rev. B 91, 075431 (2015).

 

Xiaolong Zou*, Xiaobin Chen, Huaqing Huang, Yong Xu*, Wenhui Duan*.
Enhanced thermoelectric figure of merit in thin GaAs nanowires
Nanoscale 7, 8776 (2015).

 

2014

Yong Xu, Zhongxue Gan, Shou-Cheng Zhang.
Enhanced Thermoelectric Performance and Anomalous Seebeck Effects in Topological Insulators
Phys. Rev. Lett. 112, 226801 (2014). Editors' Suggestion

 

Hongtao Yuan, Xinqiang Wang, Biao Lian, Haijun Zhang, Xianfa Fang, Bo Shen, Gang Xu, Yong Xu, Shou-Cheng Zhang, Harold Y. Hwang*, Yi Cui*.
Generation and Electric Control of Spin-Valley-Coupled Circular Photogalvanic Current in WSe₂
Nature Nanotech. 9, 851 (2014).

 

Peizhe Tang, Pengcheng Chen, Wendong Cao, Huaqing Huang, Seymur Cahangirov, Lede Xian, Yong Xu, Shou-Cheng Zhang, Wenhui Duan*, Angel Rubio*.
Stable two-dimensional dumbbell stanene: A quantum spin Hall insulator
Phys. Rev. B 90, 121408 (2014).

 

Jing Wang, Yong Xu, Shou-Cheng Zhang.
Two-dimensional time-reversal-invariant topological superconductivity in a doped quantum spin-Hall insulator
Phys. Rev. B 90, 054503 (2014).

 

Haijun Zhang, Yong Xu, Jing Wang, Shou-Cheng Zhang.
Quantum Spin Hall and Quantum Anomalous Hall States Realized in Junction Quantum Wells
Phys. Rev. Lett. 112, 216803 (2014).

 

Haijun Zhang, Jing Wang, Gang Xu, Yong Xu, Shou-Cheng Zhang.
Topological States in Ferromagnetic CdO/EuO Superlattices and Quantum Wells
Phys. Rev. Lett. 112, 096804 (2014).

 

Yong Xu, Zuanyi Li, Wenhui Duan.
Thermal and Thermoelectric Properties of Graphene
Small 10, 2182 (2014).

 

Dengfeng Li, Yong Xu*, Xiaobin Chen, Bolin Li, Wenhui Duan*.
Tunable Thermal Conduction in Graphane Nanoribbons
Appl. Phys. Lett. 104, 143108 (2014).

 

Yong Xu, Zhongxue Gan, Shou-Cheng Zhang.

Thermoelectric Structures and Devices Based on Topological Insulators

US Patent App. 14/207,478.

 

Yong Xu, Wenhui Duan.

Thermal conduction of graphene

Book chapter in "Nanoscale Energy Transport and Harvesting: A Computational Study", edited by Gang Zhang (Pan Stanford Publishing, 2014).

 

Chen Si, Junwei Liu, Yong Xu, Jian Wu, Bing-Lin Gu, Wenhui Duan*.
Functionalized germanene as a prototype of large-gap two-dimensional topological insulators
Phys. Rev. B 89, 115429 (2014).

 

Junwei Liu, Yong Xu, Jian Wu, Bing-Lin Gu, Sheng Bai Zhang, Wenhui Duan*.
Manipulating topological phase transition by strain
Acta Crystallogr., Sect. C: Cryst. Struct. Commun. 70, 118 (2014).

 

Jianfeng Wang, Junwei Liu, Yong Xu, Jian Wu, Bing-Lin Gu, Wenhui Duan*.
Structural stability and topological surface states of the SnTe (111) surface
Phys. Rev. B 89, 125308 (2014).

 

2013

Yong Xu, Binghai Yan, Hai-Jun Zhang, Jing Wang, Gang Xu, Peizhe Tang, Wenhui Duan, Shou-Cheng Zhang.

Large-gap quantum spin Hall insulators in tin films

Phys. Rev. Lett. 111, 136804 (2013).

 

Yong Xu, Oliver T. Hofmann, Raphael Schlesinger, Stefanie Winkler, Johannes Frisch, Jens Niederhausen, Antje Vollmer, Sylke Blumstengel, Fritz Henneberger, Norbert Koch, Patrick Rinke, Matthias Scheffler.

Space-charge transfer in hybrid inorganic/organic systems

Phys. Rev. Lett. 111, 226802 (2013).

 

Jing Wang, Biao Lian, Haijun Zhang, Yong Xu, Shou-Cheng Zhang.

Quantum Anomalous Hall Effect with Higher Plateaus

Phys. Rev. Lett. 111, 136801 (2013).

 

Huaqing Huang, Yong Xu*, Xiaolong Zou, Jian Wu, Wenhui Duan*.
Tuning thermal conduction via extended defects in graphene
Phys. Rev. B 87, 205415 (2013).

 

Xiaobin Chen, Yong Xu*, Xiaolong Zou, Bing-Lin Gu, Wenhui Duan.
Interfacial thermal conductance of partially unzipped carbon nanotubes: Linear scaling and exponential decay
Phys. Rev. B 87, 155438 (2013).

 

Oliver T. Hofmann, Jan-Christoph Deinert, Yong Xu, Patrick Rinke, Julia Stähler, Martin Wolf, Matthias Scheffler.

Large work function reduction by adsorption of a molecule with a negative electron affinity: pyridine on ZnO(1010)

J. Chem. Phys. 139, 174701 (2013).

 

Nikolaj Moll, Yong Xu, Oliver T. Hofmann, Patrick Rinke.
Stabilization of semiconductor surfaces through bulk dopants

New J. Phys. 15, 083009 (2013).

 

Raphael Schlesinger, Yong Xu, Oliver T. Hofmann, Stefanie Winkler, Johannes Frisch, Jens Niederhausen, Antje Vollmer, Sylke Blumstengel, Fritz Henneberger, Patrick Rinke, Matthias Scheffler, Norbert Koch.
Controlling the work function of ZnO and the energy-level alignment at the interface to organic semiconductors with a molecular electron acceptor
Phys. Rev. B 87, 155311 (2013).

 

2008-2012

Hongqin Zhu, Yong Xu*, Bing-Lin Gu, Wenhui Duan*.
Robust linear dependence of thermal conductance on radial strain in carbon nanotubes
New J. Phys. 14, 013053 (2012).

 

Yinlin Wang, Yong Xu, Yeping Jiang, Junwei Liu, Cuizu Chang, Mu Chen, Zhi Li, Canli Song, Lili Wang, Ke He, Xi Chen, Wenhui Duan, Qikun Xue*, Xucun Ma*.
Structural defects and electronic properties of the Cu-doped topological insulator Bi₂Se₃
Phys. Rev. B 84, 075335 (2011).

 

Yong Xu, Xiaobin Chen, Jian-Sheng Wang, Bing-Lin Gu, Wenhui Duan*.
Thermal transport in graphene junctions and quantum dots
Phys. Rev. B 81, 195425 (2010).

 

Yong Xu, Xiaobin Chen, Bing-Lin Gu, Wenhui Duan*.
Intrinsic anisotropy of thermal conductance in graphene nanoribbons
Appl. Phys. Lett. 95, 233116 (2009).

 

Kota Tomatsu, Kan Nakatsuji, Masamichi Yamada, Fumio Komori, Binghai Yan, Chiyung Yam, Thomas Frauenheim, Yong Xu, Wenhui Duan.
Local vibrational excitation through extended electronic states at germanium surface
Phys. Rev. Lett. 103, 266102 (2009).

 

Yong Xu, Jian-Sheng Wang, Wenhui Duan*, Bing-Lin Gu, Baowen Li.
Nonequilibrium Green’s function method for phonon-phonon interactions and ballistic-diffusive thermal transport
Phys. Rev. B 78, 224303 (2008).