Electronic Resource
Rotational Symmetry Breaking in a Trigonal Superconductor Nb-doped Bi₂Se₃
| العنوان: | Rotational Symmetry Breaking in a Trigonal Superconductor Nb-doped Bi₂Se₃ |
|---|---|
| المؤلفون: | Massachusetts Institute of Technology. Department of Physics, Fu, Liang, Asaba, Tomoya, Lawson, B. J., Tinsman, Colin, Chen, Lu, Corbae, Paul, Li, Gang, Qiu, Y., Hor, Y. S., Li, Lu |
| المصدر: | Physical Review X |
| بيانات النشر: | American Physical Society (APS) 2018-04-30T13:49:05Z 2018-04-30T13:49:05Z 2017-01 2016-11 2018-03-02T14:38:56Z |
| نوع الوثيقة: | Electronic Resource |
| مستخلص: | The search for unconventional superconductivity has been focused on materials with strong spin-orbit coupling and unique crystal lattices. Doped bismuth selenide (Bi₂Se₃) is a strong candidate, given the topological insulator nature of the parent compound and its triangular lattice. The coupling between the physical properties in the superconducting state and its underlying crystal symmetry is a crucial test for unconventional superconductivity. In this paper, we report direct evidence that the superconducting magnetic response couples strongly to the underlying trigonal crystal symmetry in the recently discovered superconductor with trigonal crystal structure, niobium (Nb)-doped Bi₂Se₃. As a result, the in-plane magnetic torque signal vanishes every 60°. More importantly, the superconducting hysteresis loop amplitude is enhanced along one preferred direction, spontaneously breaking the rotational symmetry. This observation indicates the presence of nematic order in the superconducting ground state of Nb-doped Bi₂Se₃. Keywords: Superconductivity; Topological Insulators United States. Dept. of Energy (Grant DE-SC0008110) National Science Foundation (U.S.) (Grant DMR-1255607) |
| مصطلحات الفهرس: | Article, http://purl.org/eprint/type/JournalArticle |
| URL: | Physical Review X |
| الاتاحة: | Open access content. Open access content Attribution 4.0 International (CC BY 4.0) https://creativecommons.org/licenses/by/4.0 |
| ملاحظة: | application/pdf |
| Other Numbers: | MYG oai:dspace.mit.edu:1721.1/115080 2160-3308 Asaba, Tomoya et al. “Rotational Symmetry Breaking in a Trigonal Superconductor Nb-Doped Bi₂Se₃.” Physical Review X 7, 1 (January 2017): 011009 1141879030 |
| المصدر المساهم: | MASSACHUSETTS INST OF TECHNOL LIBRS From OAIster®, provided by the OCLC Cooperative. |
| رقم الانضمام: | edsoai.on1141879030 |
| قاعدة البيانات: | OAIster |
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