Field Reentrance of the Hidden Order State of URu2Si2 under Pressure

被引：32

作者：

Aoki, Dai ^{[1
]}

Bourdarot, Frederic ^{[1
]}

Hassinger, Elena ^{[1
]}

Knebel, Georg ^{[1
]}

Miyake, Atsushi ^{[1
]}

Raymond, Stephane ^{[1
]}

Taufour, Valentin ^{[1
]}

Flouquet, Jacques ^{[1
]}

机构：

[1] CEA, INAC, SPSMS, F-38054 Grenoble, France

来源：

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN | 2009年 / 78卷 / 05期

关键词：

URu2Si2; heavy fermion; hidden order; phase transition; magnetism; electronic structure; ELECTRON SUPERCONDUCTOR URU2SI2; FERMI-SURFACE; PHASE-DIAGRAM; EXCITATIONS;

D O I：

10.1143/JPSJ.78.053701

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Combination of neutron scattering and thermal expansion measurements under pressure shows that the so-called hidden order phase of URu2Si2 reenters in magnetic field when antiferromagnetism (AF) collapses at HAF(T). Macroscopic pressure studies of the HO-AF boundaries were realized at different pressures via thermal expansion measurements under magnetic field using a strain gauge. Microscopic proof at a given pressure is the reappearance of the resonance at Q(0) = (1, 0, 0) under field which is correlated with the collapse of the AF Bragg reflections at Q(0).

引用

页数：4

共 29 条

[1] Pressure-temperature phase diagram of the heavy-electron superconductor URu2Si2 [J].