Photoemission spectroscopy and the unusually robust one-dimensional physics of lithium purple bronze

被引：28
|
作者：
Dudy, L. [1 ,2 ]
Denlinger, J. D. [3 ]
Allen, J. W. [1 ]
Wang, F. [1 ,4 ]
He, J. [5 ]
Hitchcock, D. [5 ]
Sekiyama, A. [6 ]
Suga, S. [6 ]
机构：
[1] Univ Michigan, Randall Lab, Ann Arbor, MI 48109 USA
[2] Univ Wurzburg, Inst Phys, D-97074 Wurzburg, Germany
[3] Lawrence Berkeley Natl Lab, Adv Light Source, Berkeley, CA 94270 USA
[4] BTG Pactual, New York, NY 10022 USA
[5] Clemson Univ, Dept Phys & Astron, Clemson, SC 29534 USA
[6] Osaka Univ, Dept Mat Phys, Grad Sch Engn Sci, Toyonaka, Osaka 5608531, Japan
来源：
JOURNAL OF PHYSICS-CONDENSED MATTER | 2013年 / 25卷 / 01期
基金：
美国国家科学基金会;
关键词：
COUPLED LUTTINGER LIQUIDS; LINE-SHAPES; SUPERCONDUCTING PROPERTIES; TRANSPORT-PROPERTIES; TOMONAGA-LUTTINGER; SPECTRAL FUNCTIONS; LI0.9MO6O17; METALS; (TMTSF)(2)PF6; LOCALIZATION;
D O I：
10.1088/0953-8984/25/1/014007
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
Temperature-dependent photoemission spectroscopy in Li0.9Mo6O17 contributes to evidence for one-dimensional (1D) physics that is unusually robust. Three generic characteristics of the Luttinger liquid are observed: power law behavior of the k-integrated spectral function down to temperatures just above the superconducting transition, k-resolved lineshapes that show holon and spinon features, and quantum critical (QC) scaling in the lineshapes. Departures of the lineshapes and the scaling from expectations in the Tomonaga-Luttinger model can be partially described by a phenomenological momentum broadening that is presented and discussed. The possibility that some form of 1D physics obtains even down to the superconducting transition temperature is assessed.
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页数：11
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