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

被引：47

作者：

Watson, M. D. ^{[1
]}

Feng, Y. ^{[2
,3
]}

Nicholson, C. W. ^{[4
]}

Monney, C. ^{[5
]}

Riley, J. M. ^{[1
,6
]}

Iwasawa, H. ^{[1
]}

Refson, K. ^{[7
,8
]}

Sacksteder, V. ^{[7
]}

Adroja, D. T. ^{[8
,9
]}

Zhao, J. ^{[2
,3
]}

Hoesch, M. ^{[1
]}

机构：

[1] Diamond Light Source, Harwell Campus, Didcot OX11 0DE, Oxon, England

[2] Fudan Univ, State Key Lab Surface Phys, Shanghai 200433, Peoples R China

[3] Fudan Univ, Dept Phys, Shanghai 200433, Peoples R China

[4] Max Planck Gesell, Fritz Haber Inst, Dept Phys Chem, Faradayweg 4-6, D-14915 Berlin, Germany

[5] Univ Zurich, Dept Phys, Winterthurerstr 190, CH-8057 Zurich, Switzerland

[6] Univ St Andrews, Sch Phys & Astron, SUPA, St Andrews KY16 9SS, Fife, Scotland

[7] Royal Holloway Univ London, Dept Phys, Egham TW20 0EX, Surrey, England

[8] Rutherford Appleton Lab, ISIS Facil, Didcot OX11 0QX, Oxon, England

[9] Univ Johannesburg, Dept Phys, Highly Correlated Matter Res Grp, POB 524, ZA-2006 Auckland Pk, South Africa

来源：

PHYSICAL REVIEW LETTERS | 2017年 / 118卷 / 09期

基金：

瑞士国家科学基金会; 中国国家自然科学基金; 英国工程与自然科学研究理事会;

关键词：

SUPERCONDUCTIVITY; A(2)CR(3)AS(3); PHOTOEMISSION; RB;

D O I：

10.1103/PhysRevLett.118.097002

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

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 similar to 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.

引用

页数：6

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