Multiband one-dimensional electronic structure and spectroscopic signature of Tomonaga-Luttinger liquid behavior in K2Cr3As3
Abstract
We present angle-resolved photoemission spectroscopy measurements of the quasi-one-dimensional superconductor K2Cr3As3. We find that the Fermi surface contains two Fermi surface sheets, with linearly dispersing bands not displaying any significant band renormalizations. The one-dimensional band dispersions display a suppression of spectral intensity approaching the Fermi level according to a linear power law, over an energy range of ∼200 meV. This is interpreted as a signature of Tomonoga-Luttinger liquid physics, which provides a new perspective on the possibly unconventional superconductivity in this family of compounds.
Citation
Watson , M D , Feng , Y , Nicholson , C W , Monney , C , Riley , J M , Iwasawa , H , Refson , K , Sacksteder , V , Adroja , D T , Zhao , J & Hoesch , M 2017 , ' Multiband one-dimensional electronic structure and spectroscopic signature of Tomonaga-Luttinger liquid behavior in K 2 Cr 3 As 3 ' Physical Review Letters , vol. 118 , no. 9 , 097002 . https://doi.org/10.1103/PhysRevLett.118.097002
Publication
Physical Review Letters
Status
Peer reviewed
ISSN
0031-9007Type
Journal article
Rights
© The Author(s). Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI.
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