Multiband One-Dimensional Electronic Structure and Spectroscopic Signature of Tomonaga-Luttinger Liquid Behavior in K2Cr3As3

Matthew Watson; Y Feng; C Nicholson; C Monney; J Riley; H Iwasawa; Keith Refson; Vincent Sacksteder; D Adroja; J Zhao; Moritz Hoesch

doi:10.1103/PhysRevLett.118.097002

Multiband One-Dimensional Electronic Structure and Spectroscopic Signature of Tomonaga-Luttinger Liquid Behavior in K₂Cr₃As₃

Matthew Watson, Y Feng, C Nicholson, C Monney, J Riley, H Iwasawa, Keith Refson, Vincent Sacksteder , D Adroja, J Zhao, Moritz Hoesch

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Abstract

We present Angle-Resolved Photoemission Spectroscopy measurements of the quasi-one dimensional super-conductor K2 Cr3As3 . 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.

Original language	English
Article number	097002
Pages (from-to)	1-6
Number of pages	6
Journal	Physical Review Letters
Volume	118
Issue number	9
DOIs	https://doi.org/10.1103/PhysRevLett.118.097002
Publication status	Published - 1 Mar 2017

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10.1103/PhysRevLett.118.097002Licence: CC BY

Accepted ManuscriptAccepted author manuscript, 1.54 MBLicence: CC BY

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Watson, M., Feng, Y., Nicholson, C., Monney, C., Riley, J., Iwasawa, H., Refson, K., Sacksteder , V., Adroja, D., Zhao, J., & Hoesch, M. (2017). Multiband One-Dimensional Electronic Structure and Spectroscopic Signature of Tomonaga-Luttinger Liquid Behavior in K₂Cr₃As₃. Physical Review Letters, 118(9), 1-6. Article 097002. https://doi.org/10.1103/PhysRevLett.118.097002

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AU - Monney, C

AU - Riley, J

AU - Iwasawa, H

AU - Refson, Keith

AU - Sacksteder , Vincent

AU - Adroja, D

AU - Zhao, J

AU - Hoesch, Moritz

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