Spontaneous Formation of a Superconductor-Topological Insulator-Normal Metal Layered Heterostructure

Yu-Qi Wang; Xu Wu; Ye-Liang Wang; Yan Shao; Tao Lei; Jia-Ou Wang; Shi-Yu Zhu; Haiming Guo; Ling-Xiao Zhao; Gen-Fu Chen; Simin Nie; Hong-Ming Weng; Kurash Ibrahim; Xi Dai; Zhong Fang; Hong-Jun Gao

doi:10.1002/adma.201600575

Spontaneous Formation of a Superconductor-Topological Insulator-Normal Metal Layered Heterostructure

Adv Mater. 2016 Jul;28(25):5013-7. doi: 10.1002/adma.201600575. Epub 2016 Apr 18.

Authors

Yu-Qi Wang^{1

2}, Xu Wu¹, Ye-Liang Wang^{1

3}, Yan Shao¹, Tao Lei², Jia-Ou Wang¹, Shi-Yu Zhu¹, Haiming Guo¹, Ling-Xiao Zhao¹, Gen-Fu Chen^{1

3}, Simin Nie¹, Hong-Ming Weng^{1

3}, Kurash Ibrahim², Xi Dai^{1

3}, Zhong Fang^{1

3}, Hong-Jun Gao^{1

3}

Affiliations

¹ Beijing National Laboratory of Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing, 100190, P. R. China.
² Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, 100049, P. R. China.
³ Collaborative Innovation Center of Quantum Matter, Beijing, 100084, P. R. China.

PMID: 27087261
DOI: 10.1002/adma.201600575

Abstract

2D materials with heterolayered structures beyond graphene are explored. A theoretically predicted superconductor-topological insulator-normal metal heterolayered structure is realized experimentally. The generated hybrid structure HfTe3 /HfTe5 /Hf has potential applications in both quantum-spin Hall effect-based and Majorana-based devices.

Keywords: HfTe3; HfTe5; epitaxial growth; layered heterostructures; superconductivity.