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

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