Imaging the Three-Dimensional Fermi-Surface Pairing near the Hidden-Order Transition in URu2Si2 Using Angle-Resolved Photoemission Spectroscopy

被引：64
|
作者：
Meng, Jian-Qiao [1 ]
Oppeneer, Peter M. [2 ]
Mydosh, John A. [3 ]
Riseborough, Peter S. [4 ]
Gofryk, Krzysztof [1 ]
Joyce, John J. [1 ]
Bauer, Eric D. [1 ]
Li, Yinwan [5 ]
Durakiewicz, Tomasz [1 ]
机构：
[1] Los Alamos Natl Lab, Condensed Matter & Magnet Sci Grp, Los Alamos, NM 87545 USA
[2] Uppsala Univ, Dept Phys & Astron, S-75120 Uppsala, Sweden
[3] Leiden Univ, Kamerlingh Onnes Lab, NL-2300 RA Leiden, Netherlands
[4] Temple Univ, Dept Phys, Philadelphia, PA 19122 USA
[5] Wolfram Res Inc, Champaign, IL 61820 USA
来源：
PHYSICAL REVIEW LETTERS | 2013年 / 111卷 / 12期
基金：
瑞典研究理事会;
关键词：
MAGNETIC ORDER; DENSITY-WAVE; SUPERCONDUCTIVITY; LATTICE; SYSTEM; PHASE;
D O I：
10.1103/PhysRevLett.111.127002
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We report angle-resolved photoemission spectroscopy experiments probing deep into the hidden-order state of URu2Si2, utilizing tunable photon energies with sufficient energy and momentum resolution to detect the near Fermi-surface (FS) behavior. Our results reveal (i) the full itinerancy of the 5f electrons, (ii) the crucial three-dimensional k-space nature of the FS and its critical nesting vectors, in good comparison with density-functional theory calculations, and (iii) the existence of hot-spot lines and pairing of states at the FS, leading to FS gapping in the hidden-order phase.
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页数：5
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