Molecular Beam Epitaxy-Grown SnSe in the Rock-Salt Structure: An Artificial Topological Crystalline Insulator Material

Zhenyu Wang; Jianfeng Wang; Yunyi Zang; Qinghua Zhang; Jin An Shi; Tian Jiang; Yan Gong; Can Li Song; Shuai Hua Ji; Li Li Wang; Lin Gu; Ke He; Wenhui Duan; Xucun Ma; Xi Chen; Qi Kun Xue

doi:10.1002/adma.201501676

Molecular Beam Epitaxy-Grown SnSe in the Rock-Salt Structure: An Artificial Topological Crystalline Insulator Material

Zhenyu Wang
, Jianfeng Wang
, Yunyi Zang
, Qinghua Zhang
, Jin An Shi
, Tian Jiang
, Yan Gong
, Can Li Song
, Shuai Hua Ji
, Li Li Wang
, Lin Gu
, Ke He^*
, Wenhui Duan
, Xucun Ma
, Xi Chen
, Qi Kun Xue

^*Corresponding author for this work

Tsinghua University
CAS - Institute of Physics
National University of Defense Technology
Collaborative Innovation Center of Quantum Matter

Research output: Contribution to journal › Comment/debate

102 Scopus citations

Abstract

A new topological crystalline insulator material, SnSe in the rock-salt structure, is obtained using molecular beam epitaxy. The thermodynamically unstable rock-salt SnSe phase is stabilized in epitaxial films up to 20 nm by a Bi₂Se₃ substrate. Dirac surface states are observed at both the Γ¯ and the M¯ points using angle-resolved photoemission spectroscopy; this confirms the topological crystalline insulator phase of the films.

Original language	English
Pages (from-to)	4150-4154
Number of pages	5
Journal	Advanced Materials
Volume	27
Issue number	28
DOIs	https://doi.org/10.1002/adma.201501676
State	Published - 1 Jul 2015
Externally published	Yes

Keywords

SnSe films
molecular beam epitaxy
rock-salt structures
topological crystalline insulators

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10.1002/adma.201501676

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Wang, Z., Wang, J., Zang, Y., Zhang, Q., Shi, J. A., Jiang, T., Gong, Y., Song, C. L., Ji, S. H., Wang, L. L., Gu, L., He, K., Duan, W., Ma, X., Chen, X., & Xue, Q. K. (2015). Molecular Beam Epitaxy-Grown SnSe in the Rock-Salt Structure: An Artificial Topological Crystalline Insulator Material. Advanced Materials, 27(28), 4150-4154. https://doi.org/10.1002/adma.201501676

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title = "Molecular Beam Epitaxy-Grown SnSe in the Rock-Salt Structure: An Artificial Topological Crystalline Insulator Material",

abstract = "A new topological crystalline insulator material, SnSe in the rock-salt structure, is obtained using molecular beam epitaxy. The thermodynamically unstable rock-salt SnSe phase is stabilized in epitaxial films up to 20 nm by a Bi2Se3 substrate. Dirac surface states are observed at both the Γ¯ and the M¯ points using angle-resolved photoemission spectroscopy; this confirms the topological crystalline insulator phase of the films.",

keywords = "SnSe films, molecular beam epitaxy, rock-salt structures, topological crystalline insulators",

author = "Zhenyu Wang and Jianfeng Wang and Yunyi Zang and Qinghua Zhang and Shi, \{Jin An\} and Tian Jiang and Yan Gong and Song, \{Can Li\} and Ji, \{Shuai Hua\} and Wang, \{Li Li\} and Lin Gu and Ke He and Wenhui Duan and Xucun Ma and Xi Chen and Xue, \{Qi Kun\}",

note = "Publisher Copyright: {\textcopyright} 2015 WILEY-VCH Verlag GmbH \& Co. KGaA, Weinheim.",

year = "2015",

month = jul,

day = "1",

doi = "10.1002/adma.201501676",

language = "英语",

volume = "27",

pages = "4150--4154",

journal = "Advanced Materials",

issn = "0935-9648",

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TY - JOUR

T1 - Molecular Beam Epitaxy-Grown SnSe in the Rock-Salt Structure

T2 - An Artificial Topological Crystalline Insulator Material

AU - Wang, Zhenyu

AU - Wang, Jianfeng

AU - Zang, Yunyi

AU - Zhang, Qinghua

AU - Shi, Jin An

AU - Jiang, Tian

AU - Gong, Yan

AU - Song, Can Li

AU - Ji, Shuai Hua

AU - Wang, Li Li

AU - Gu, Lin

AU - He, Ke

AU - Duan, Wenhui

AU - Ma, Xucun

AU - Chen, Xi

AU - Xue, Qi Kun

PY - 2015/7/1

Y1 - 2015/7/1

N2 - A new topological crystalline insulator material, SnSe in the rock-salt structure, is obtained using molecular beam epitaxy. The thermodynamically unstable rock-salt SnSe phase is stabilized in epitaxial films up to 20 nm by a Bi2Se3 substrate. Dirac surface states are observed at both the Γ¯ and the M¯ points using angle-resolved photoemission spectroscopy; this confirms the topological crystalline insulator phase of the films.

AB - A new topological crystalline insulator material, SnSe in the rock-salt structure, is obtained using molecular beam epitaxy. The thermodynamically unstable rock-salt SnSe phase is stabilized in epitaxial films up to 20 nm by a Bi2Se3 substrate. Dirac surface states are observed at both the Γ¯ and the M¯ points using angle-resolved photoemission spectroscopy; this confirms the topological crystalline insulator phase of the films.

KW - SnSe films

KW - molecular beam epitaxy

KW - rock-salt structures

KW - topological crystalline insulators

UR - https://www.scopus.com/pages/publications/85027922330

U2 - 10.1002/adma.201501676

DO - 10.1002/adma.201501676

M3 - 评论/辩论

AN - SCOPUS:85027922330

SN - 0935-9648

VL - 27

SP - 4150

EP - 4154

JO - Advanced Materials

JF - Advanced Materials

IS - 28

ER -

Molecular Beam Epitaxy-Grown SnSe in the Rock-Salt Structure: An Artificial Topological Crystalline Insulator Material

Abstract

Keywords

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