Nakayama, Kosuke, Wang, Zhiwei ORCID: 0000-0003-0182-2471, Trang, Chi Xuan, Souma, Seigo, Rienks, Emile D. L., Takahashi, Takashi, Ando, Yoichi ORCID: 0000-0002-3553-3355 and Sato, Takafumi ORCID: 0000-0002-4544-5463 (2018). Observation of Dirac-like energy band and unusual spectral line shape in quasi-one-dimensional superconductor Tl2Mo6Se6. Phys. Rev. B, 98 (14). COLLEGE PK: AMER PHYSICAL SOC. ISSN 2469-9969

Full text not available from this repository.

Abstract

We have performed high-resolution angle-resolved photoemission spectroscopy of the quasi-one-dimensional (1D) topological superconductor candidate Tl2Mo6Se6 consisting of weakly coupled Mo3Se3 chains. We found a quasi-1D Fermi surface arising from a Dirac-like energy band, which is associated with the nonsymmorphic screw symmetry of the chains and predicted to trigger topological superconductivity. We observed a significant spectral-weight reduction over a wide energy range, together with a tiny Fermi-edge structure which exhibits a signature of a superconducting-gap opening below the superconducting-transition temperature. The observed quasi-1D Dirac-like band and its very small density of states point to an unconventional nature of superconductivity in Tl2Mo6Se6.

Item Type: Journal Article
Creators:
CreatorsEmailORCIDORCID Put Code
Nakayama, KosukeUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Wang, ZhiweiUNSPECIFIEDorcid.org/0000-0003-0182-2471UNSPECIFIED
Trang, Chi XuanUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Souma, SeigoUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Rienks, Emile D. L.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Takahashi, TakashiUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Ando, YoichiUNSPECIFIEDorcid.org/0000-0002-3553-3355UNSPECIFIED
Sato, TakafumiUNSPECIFIEDorcid.org/0000-0002-4544-5463UNSPECIFIED
URN: urn:nbn:de:hbz:38-169458
DOI: 10.1103/PhysRevB.98.140502
Journal or Publication Title: Phys. Rev. B
Volume: 98
Number: 14
Date: 2018
Publisher: AMER PHYSICAL SOC
Place of Publication: COLLEGE PK
ISSN: 2469-9969
Language: English
Faculty: Unspecified
Divisions: Unspecified
Subjects: no entry
Uncontrolled Keywords:
KeywordsLanguage
STATE; CUXBI2SE3; FIELDMultiple languages
Materials Science, Multidisciplinary; Physics, Applied; Physics, Condensed MatterMultiple languages
Refereed: Yes
URI: http://kups.ub.uni-koeln.de/id/eprint/16945

Downloads

Downloads per month over past year

Altmetric

Export

Actions (login required)

View Item View Item