Superconductivity with Topological Surface State in SrxBi2Se3

被引：246

作者：

Liu, Zhongheng ^{[1
,2
,3
]}

Yao, Xiong ^{[1
,2
,3
]}

Shao, Jifeng ^{[1
,2
,3
]}

Zuo, Ming ^{[3
]}

Po, Li ^{[1
,2
,3
,4
]}

Tan, Shun ^{[3
]}

Zhang, Changjin ^{[1
,2
,3
,4
]}

Zhang, Yuheng ^{[1
,2
,3
,4
]}

机构：

[1] Chinese Acad Sci, High Field Magnet Lab, Hefei 230026, Peoples R China

[2] Univ Sci & Technol China, Hefei 230026, Peoples R China

[3] Univ Sci & Technol China, Hefei Natl Lab Phys Sci Microscale, Hefei 230026, Peoples R China

[4] Nanjing Univ, Collaborat Innovat Ctr Adv Microstruct, Nanjing 210093, Jiangsu, Peoples R China

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2015年 / 137卷 / 33期

基金：

中国国家自然科学基金;

关键词：

QUANTUM OSCILLATIONS; THIN-FILMS; INSULATOR; BI2SE3; BI2TE3; SEMICONDUCTOR; PHASE; ORDER;

D O I：

10.1021/jacs.5b06815

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

By intercalation of alkaline earth metal Sr in Bi2Se3, superconductivity with large shielding volume fraction (similar to 91.5% at 0.5 K) has been achieved in Sr0.065Bi2Se3. Analysis of the Shubnikov-de Hass oscillations confirms the half-shift expected from a Dirac spectrum, giving transport evidence of the existence of surface states. Importantly, Sr(x)Bi(2)Se(3)superconductor is stable under air, making SrxBi2Se3 an ideal material base for investigating topological superconductivity.

引用

页码：10512 / 10515

页数：4

共 28 条

[1] Bulk Fermi surface coexistence with Dirac surface state in Bi2Se3: A comparison of photoemission and Shubnikov-de Haas measurements [J].

Analytis, James G. ;

Chu, Jiun-Haw ;

Chen, Yulin ;

Corredor, Felipe ;

McDonald, Ross D. ;

Shen, Z. X. ;

Fisher, Ian R. .

PHYSICAL REVIEW B, 2010, 81 (20)

[2] Quantum spin Hall effect and topological phase transition in HgTe quantum wells [J].

Bernevig, B. Andrei ;

Hughes, Taylor L. ;

Zhang, Shou-Cheng .

SCIENCE, 2006, 314 (5806) :1757-1761

[3] Odd-Parity Topological Superconductors: Theory and Application to CuxBi2Se3 [J].

Fu, Liang ;

Berg, Erez .

PHYSICAL REVIEW LETTERS, 2010, 105 (09)

[4] Superconducting proximity effect and Majorana fermions at the surface of a topological insulator [J].

Fu, Liang ;

Kane, C. L. .

PHYSICAL REVIEW LETTERS, 2008, 100 (09)

[5] Superconductivity in CuxBi2Se3 and its Implications for Pairing in the Undoped Topological Insulator [J].

Hor, Y. S. ;

Williams, A. J. ;

Checkelsky, J. G. ;

Roushan, P. ;

Seo, J. ;

Xu, Q. ;

Zandbergen, H. W. ;

Yazdani, A. ;

Ong, N. P. ;

Cava, R. J. .

PHYSICAL REVIEW LETTERS, 2010, 104 (05)

[6] Majorana Fermions and Exotic Surface Andreev Bound States in Topological Superconductors: Application to CuxBi2Se3 [J].

Hsieh, Timothy H. ;

Fu, Liang .

PHYSICAL REVIEW LETTERS, 2012, 108 (10)

[7] Redox Control and High Conductivity of Nickel Bis(dithiolene) Complex π-Nanosheet: A Potential Organic Two-Dimensional Topological Insulator [J].

Kambe, Tetsuya ;

Sakamoto, Ryota ;

Kusamoto, Tetsuro ;

Pal, Tigmansu ;

Fukui, Naoya ;

Hoshiko, Ken ;

Shimojima, Takahiro ;

Wang, Zhengfei ;

Hirahara, Toru ;

Ishizaka, Kyoko ;

Hasegawa, Shuji ;

Liu, Feng ;

Nishihara, Hiroshi .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2014, 136 (41) :14357-14360

[8] Z2 topological order and the quantum spin Hall effect -: art. no. 146802 [J].

Kane, CL ;

Mele, EJ .

PHYSICAL REVIEW LETTERS, 2005, 95 (14)

[9] High-Density Chemical Intercalation of Zero-Valent Copper into Bi2Se3 Nanoribbons [J].

Koski, Kristie J. ;

Cha, Judy J. ;

Reed, Bryan W. ;

Wessells, Cohn D. ;

Kong, Desheng ;

Cui, Yi .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2012, 134 (18) :7584-7587

[10] Anomalous suppression of the superfluid density in the CuxBi2Se3 superconductor upon progressive Cu intercalation [J].

Kriener, M. ;

Segawa, Kouji ;

Sasaki, Satoshi ;

Ando, Yoichi .

PHYSICAL REVIEW B, 2012, 86 (18)

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