Journal Papers

2020

CsV₃Sb₅: A Z₂ Topological Kagome Metal with a Superconducting Ground State

Brenden R. Ortiz^#, Samuel M. L. Teicher, Yong Hu, Julia L. Zuo, Paul M. Sarte, Emily C. Schueller, A. M. Milinda Abeykoon, Matthew J. Krogstad, Stephan Rosenkranz, Raymond Osborn, Ram Seshadri, Leon Balents, Junfeng He, and Stephen D. Wilson

Phys. Rev. Lett. 125, 247002(2020)

Full Text from Publisher Editors' Suggestion

Metallic surface states in a correlated d-electron topological Kondo insulator candidate FeSb₂

Ke-Jun Xu, Su-Di Chen, Yu He, Junfeng He, Shujie Tang, Chunjing Jia, Eric Yue Ma, Sung-Kwan Mo, Donghui Lu, Makoto Hashimoto, Thomas P. Devereaux, Zhi-Xun Shen*

Proceedings of the National Academy of Sciences 117(27), 15409-15413(2020)

Universal gapless Dirac cone and tunable topological states in (MnBi₂Te₄)_m(Bi₂Te₃)_n heterostructures

Yong Hu^#, Lixuan Xu^#, Mengzhu Shi^#, Aiyun Luo^#, Shuting Peng, Z. Y. Wang, J. J. Ying, T. Wu, Z. K. Liu, C. F. Zhang, Y. L. Chen, G. Xu, X.-H. Chen*, J.-F. He*

Phys. Rev. B Rapid Communications 101, 161113(2020)

2019

Incoherent Strange Metal Sharply Bounded by a Critical Doping in Bi2212

Su-Di Chen^#, Makoto Hashimoto^#, Yu He, Dongjoon Song, Ke-Jun Xu , Jun-Feng He, Thomas P. Devereaux, Hiroshi Eisaki , Dong-Hui Lu, Jan Zaanen, Zhi-Xun Shen*

Science 366, 1099(2019)

Spectroscopic Evidence for Electron-Boson Coupling in Electron-Doped Sr₂IrO₄

Yong Hu^#, Xiang Chen^#, S.-T. Peng, C. Lane, M. Matzelle, Z.-L. Sun, M. Hashimoto, D.-H. Lu, E. F. Schwier, M. Arita, T. Wu, R. S. Markiewicz, K. Shimada, X.-H. Chen, Z.-X. Shen, A. Bansil, S. D. Wilson, J.-F. He* 

Phys. Rev. Lett. 123, 216402(2019) 

Fermi surface reconstruction in electron-doped cuprates without antiferromagnetic long-range order

Junfeng He, Costel R. Rotundu, Mathias S. Scheurer, Yu He, Makoto Hashimoto, Ke-Jun Xu, Yao Wang, Edwin W. Huang, Tao Jia, Sudi Chen, Brian Moritz, Donghui Lu, Young S. Lee, Thomas P. Devereaux, and Zhi-xun Shen*

Proceedings of the National Academy of Sciences 116, 3449(2019)

2018

Three-dimensional collective charge excitations in electron-doped copper oxide superconductors

M. Hepting, L. Chaix, E. W. Huang, R. Fumagalli, Y. Y. Peng, B. Moritz, K. Kummer, N. B. Brookes, W. C. Lee, M. Hashimoto, T. Sarkar, J.-F. He, C. R. Rotundu, Y. S. Lee, R. L. Greene, L. Braicovich, G. Ghiringhelli, Z. X. Shen*, T. P. Devereaux* & W. S. Lee*

Nature 563, 374–378(2018)

Rapid change of superconductivity and electron-phonon coupling through critical doping in Bi-2212

Y. He^#, M. Hashimoto^#, D. Song, S.-D. Chen, J. He, I. M. Vishik, B. Moritz, D.-H. Lee, N. Nagaosa, J. Zaanen, T. P. Devereaux, Y. Yoshida, H. Eisaki, D. H. Lu, Z.-X. Shen*

Science, 362, 62(2018)

Selected publications before 2018

Ubiquitous strong electron-phonon coupling at the interface of FeSe/SrTiO₃

Chaofan Zhang, Zhongkai Liu, Zhuoyu Chen, Yanwu Xie, Ruihua He, Shujie Tang, Junfeng He, Wei Li, Tao Jia, Slavko N. Rebec, Eric Yue Ma, Hao Yan, Makoto Hashimoto, Donghui Lu, Sung-Kwan Mo, Yasuyuki Hikita, Robert G. Moore, Harold Y. Hwang, Dunghai Lee & Zhixun Shen*

Nature Communications 8, 14468(2017)

Distinct Electronic Structure for the Extreme Magnetoresistance in YSb

Junfeng He^#, Chaofan Zhang^#, Nirmal J. Ghimire, Tian Liang, Chunjing Jia, Juan Jiang, Shujie Tang, Sudi Chen, Yu He, S.-K. Mo, C.C. Hwang, M. Hashimoto, D. H. Lu, B. Moritz, T. P. Devereaux, Y. L. Chen, J.F. Mitchell, and Z.-X. Shen*

Phys. Rev. Lett. 117, 267201(2016)

Angle-resolved photoemission with circularly polarized light in the nodal mirror plane of underdoped Bi₂Sr₂CaCu₂O_8+δ superconductor

Junfeng He*, Thomas R. Mion, Shang Gao, Gavin T. Myers, Masashi Arita, Kenya Shimada, G. D. Gu, and Rui-Hua He*

Appl. Phys. Lett. 109, 182601(2016)

Observation of a three-dimensional quasi-long-range electronic supermodulation in YBa₂Cu₃O_7−x/La_0.7Ca_0.3MnO₃ heterostructures

Junfeng He^#, Padraic Shafer^#, Thomas R. Mion^#, Vu Thanh Tra, Qing He, J. Kong, Y.-D. Chuang, W. L. Yang, M. J. Graf, J.-Y. Lin, Y.-H. Chu, E. Arenholz & Rui-Hua He*

Nature Communications 7, 10852(2016)

Quantitative determination of pairing interactions for high-temperature superconductivity in cuprates

Jin Mo Bok, Jong Ju Bae, Han-Yong Choi*, Chandra M. Varma*, Wentao Zhang,Junfeng He, Yuxiao Zhang, Li Yu, X. J. Zhou*

Science Advances 2 (3), e1501329(2016)

Highly Sensitive Detection of Polarized Light Using Anisotropic 2D ReS₂

Fucai Liu^#, Shoujun Zheng^#, Xuexia He*, Apoorva Chaturvedi, Junfeng He, Wai Leong Chow, Thomas R. Mion, Xingli Wang, Jiadong Zhou, Qundong Fu, Hong Jin Fan, Beng Kang Tay, Li Song, Rui-Hua He, Christian Kloc, Pulickel M. Ajayan, Zheng Liu*

Advanced Functional Materials 26 (8), 1169-1177(2016)

Spectroscopic evidence for negative electronic compressibility in a quasi-three-dimensional spin–orbit correlated metal

Junfeng He^#, T. Hogan^#, Thomas R. Mion, H. Hafiz, Y. He, J. D. Denlinger, S-K. Mo, C. Dhital, X. Chen, Qisen Lin, Y. Zhang, M. Hashimoto, H. Pan, D. H. Lu, M. Arita, K. Shimada, R. S. Markiewicz, Z. Wang, K. Kempa, M. J. Naughton, A. Bansil, S. D. Wilson & Rui-Hua He*

Nature Materials 14, 577–582(2015)

Fermi Arcs vs. Fermi Pockets in Electron-doped Perovskite Iridates

Junfeng He^#*, H. Hafiz^#, Thomas R. Mion, T. Hogan, C. Dhital, X. Chen, Qisen Lin, M. Hashimoto, D. H. Lu, Y. Zhang, R. S. Markiewicz, A. Bansil*, S. D. Wilson & Rui-Hua He*

Scientific Reports 5, 8533(2015)

Electronic evidence of an insulator–superconductor crossover in single-layer FeSe/SrTiO₃ films

Junfeng He^#, Xu Liu^#, Wenhao Zhang^#, Lin Zhao^#, Defa Liu, Shaolong He, Daixiang Mou, Fangsen Li, Chenjia Tang, Zhi Li, Lili Wang, Yingying Peng, Yan Liu, Chaoyu Chen, Li Yu, Guodong Liu, Xiaoli Dong, Jun Zhang, Chuangtian Chen, Zuyan Xu, Xi Chen, Xucun Ma*, Qikun Xue*, and X. J. Zhou*

Proceedings of the National Academy of Sciences 111 (52), 18501-18506(2014)

Dichotomy of the electronic structure and superconductivity between single-layer and double-layer FeSe/SrTiO₃ films

Xu Liu^#, Defa Liu^#, Wenhao Zhang^#, Junfeng He^#, Lin Zhao, Shaolong He, Daixiang Mou, Fangsen Li, Chenjia Tang, Zhi Li, Lili Wang, Yingying Peng, Yan Liu, Chaoyu Chen, Li Yu, Guodong Liu, Xiaoli Dong, Jun Zhang, Chuangtian Chen, Zuyan Xu, Xi Chen, Xucun Ma*, Qikun Xue* & X. J. Zhou*

Nature Communications 5, 5047(2014)

Sharp Low-Energy Feature in Single-Particle Spectra due to Forward Scattering in d-Wave Cuprate Superconductors

Seung Hwan Hong, Jin Mo Bok, Wentao Zhang, Junfeng He, X. J. Zhou, C. M. Varma, and Han-Yong Choi*

Phys. Rev. Lett. 113, 057001(2014) 

Orbital-selective spin texture and its manipulation in a topological insulator

Zhuojin Xie^#, Shaolong He^#, Chaoyu Chen, Ya Feng, Hemian Yi, Aiji Liang, Lin Zhao, Daixiang Mou, Junfeng He, Yingying Peng, Xu Liu, Yan Liu, Guodong Liu, Xiaoli Dong, Li Yu, Jun Zhang, Shenjin Zhang, Zhimin Wang, Fengfeng Zhang, Feng Yang, Qinjun Peng, Xiaoyang Wang, Chuangtian Chen, Zuyan Xu & X. J. Zhou*

Nature Communications 5, 3382(2014)

Disappearance of nodal gap across the insulator–superconductor transition in a copper-oxide superconductor

Yingying Peng, Jianqiao Meng, Daixiang Mou, Junfeng He, Lin Zhao, Yue Wu, Guodong Liu, Xiaoli Dong, Shaolong He, Jun Zhang, Xiaoyang Wang, Qinjun Peng, Zhimin Wang, Shenjin Zhang, Feng Yang, Chuangtian Chen, Zuyan Xu, T. K. Lee & X. J. Zhou*

Nature Communications 4, 2459(2013)

Coexistence of Two Sharp-Mode Couplings and their Unusual Momentum Dependence in the Superconducting State of Bi₂Sr₂CaCu₂O_8+δ Revealed by Laser-Based Angle-Resolved Photoemission

Junfeng He, Wentao Zhang, Jin Mo Bok, Daixiang Mou, Lin Zhao, Yingying Peng, Shaolong He, Guodong Liu, Xiaoli Dong, Jun Zhang, J. S. Wen, Z. J. Xu, G. D. Gu, Xiaoyang Wang, Qinjun Peng, Zhimin Wang, Shenjin Zhang, Feng Yang, Chuangtian Chen, Zuyan Xu, H.-Y. Choi, C. M. Varma, and X. J. Zhou*

Phys. Rev. Lett. 111, 107005(2013) 

Phase diagram and electronic indication of high-temperature superconductivity at 65 K in single-layer FeSe films

Shaolong He^#, Junfeng He^#, Wenhao Zhang^#, Lin Zhao^#, Defa Liu, Xu Liu, Daixiang Mou, Yun-Bo Ou, Qing-Yan Wang, Zhi Li, Lili Wang, Yingying Peng, Yan Liu, Chaoyu Chen, Li Yu, Guodong Liu, Xiaoli Dong, Jun Zhang, Chuangtian Chen, Zuyan Xu, Xi Chen, Xucun Ma*, Qikun Xue* & X. J. Zhou*

Nature Materials 12, 605–610(2013)

Electronic origin of high-temperature superconductivity in single-layer FeSe superconductor

Defa Liu^#, Wenhao Zhang^#, Daixiang Mou^#, Junfeng He^#, Yun-Bo Ou, Qing-Yan Wang, Zhi Li, Lili Wang, Lin Zhao, Shaolong He, Yingying Peng, Xu Liu, Chaoyu Chen, Li Yu, Guodong Liu, Xiaoli Dong, Jun Zhang, Chuangtian Chen, Zuyan Xu, Jiangping Hu, Xi Chen, Xucun Ma, Qikun Xue* & X.J. Zhou*

Nature Communications 3, 931(2012)

Robustness of topological order and formation of quantum well states in topological insulators exposed to ambient environment

Chaoyu Chen, Shaolong He, Hongming Weng, Wentao Zhang, Lin Zhao, Haiyun Liu, Xiaowen Jia, Daixiang Mou, Shanyu Liu, Junfeng He, Yingying Peng, Ya Feng, Zhuojin Xie, Guodong Liu, Xiaoli Dong, Jun Zhang, Xiaoyang Wang, Qinjun Peng, Zhimin Wang, Shenjin Zhang, Feng Yang, Chuangtian Chen, Zuyan Xu, Xi Dai, Zhong Fang, and X. J. Zhou*

Proceedings of the National Academy of Sciences 109, 3694(2012)

Distinct Fermi Surface Topology and Nodeless Superconducting Gap in a (Tl_0.58Rb_0.42)Fe_1.72Se₂ Superconductor

Daixiang Mou, Shanyu Liu, Xiaowen Jia, Junfeng He, Yingying Peng, Lin Zhao, Li Yu, Guodong Liu, Shaolong He, Xiaoli Dong, Jun Zhang, Hangdong Wang, Chiheng Dong, Minghu Fang, Xiaoyang Wang, Qinjun Peng, Zhimin Wang, Shenjin Zhang, Feng Yang, Zuyan Xu, Chuangtian Chen, and X. J. Zhou*

Phys. Rev. Lett. 106, 107001(2011) 

Unusual Electronic Structure and Observation of Dispersion Kink in CeFeAsO Parent Compound of FeAs-based Superconductors

Haiyun Liu, G. F. Chen, Wentao Zhang, Lin Zhao, Guodong Liu, T.-L. Xia, Xiaowen Jia, Daixiang Mu, Shanyu Liu, Shaolong He, Yingying Peng, Junfeng He, Zhaoyu Chen, Xiaoli Dong, Jun Zhang, Guiling Wang, Yong Zhu, Zuyan Xu, Chuangtian Chen, and X. J. Zhou*

Phys. Rev. Lett. 105, 027001(2010)