Pressure-induced rotational symmetry breaking in URu2Si2

被引：17

作者：

Choi, J. ^{[1
]}

Ivashko, O. ^{[1
]}

Dennler, N. ^{[1
]}

Aoki, D. ^{[2
,3
]}

von Arx, K. ^{[1
]}

Gerber, S. ^{[4
]}

Gutowski, O. ^{[5
]}

Fischer, M. H. ^{[1
,6
]}

Strempfer, J. ^{[5
]}

von Zimmermann, M. ^{[5
]}

Chang, J. ^{[1
]}

机构：

[1] Univ Zurich, Phys Inst, Winterthurerstr 190, CH-8057 Zurich, Switzerland

[2] Univ Grenoble Alpes, CEA, INAC PHELIQS, F-38000 Grenoble, France

[3] Tohoku Univ, Inst Mat Res, Oarai, Ibaraki 3111313, Japan

[4] Paul Scherrer Inst, Lab Micro & Nanotechnol, CH-5232 Villigen, Switzerland

[5] Deutsches Elektronen Synchrotron DESY, D-22603 Hamburg, Germany

[6] Swiss Fed Inst Technol, Inst Theoret Phys, CH-8093 Zurich, Switzerland

来源：

PHYSICAL REVIEW B | 2018年 / 98卷 / 24期

基金：

瑞士国家科学基金会; 欧洲研究理事会;

关键词：

HIDDEN-ORDER PHASE; DENSITY-WAVE; STATE;

D O I：

10.1103/PhysRevB.98.241113

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Phase transitions and symmetry are intimately linked. Melting of ice, for example, restores translation invariance. The mysterious hidden order (HO) phase of URu2Si2 has, despite relentless research efforts, kept its symmetry breaking element intangible. Here, we present a high-resolution x-ray diffraction study of the URu2Si2 crystal structure as a function of hydrostatic pressure. Below a critical pressure threshold p(c) approximate to 3 kbar, no tetragonal lattice symmetry breaking is observed even below the HO transition T-HO = 17.5 K. For p > p(c,) however, a pressure-induced rotational symmetry breaking is identified with an onset temperatures T-OR similar to 100 K. The emergence of an orthorhombic phase is found and discussed in terms of an electronic nematic order that appears unrelated to the HO, but with possible relevance for the pressure-induced antiferromagnetic (AF) phase. Existing theories describe the HO and AF phases through an adiabatic continuity of a complex order parameter. Since none of these theories predicts a pressure-induced nematic order, our finding adds an additional symmetry breaking element to this long-standing problem.

引用

页数：5

共 38 条

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

Amitsuka, H. ;

Matsuda, K. ;

Kawasaki, I. ;

Tenya, K. ;

Yokoyama, M. .

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2007, 310 (02) :214-220

[2] High-Field Fermi Surface Properties in the Low-Carrier Heavy-Fermion Compound URu2Si2 [J].

Aoki, Dai ;

Knebel, Georg ;

Sheikin, Ilya ;

Hassinger, Elena ;

Malone, Liam ;

Matsuda, Tatsuma D. ;

Flouquet, Jacques .

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 2012, 81 (07)

[3] Antiferromagnetic critical pressure in URu2Si2 under hydrostatic conditions [J].

Butch, Nicholas P. ;

Jeffries, Jason R. ;

Chi, Songxue ;

Leao, Juscelino Batista ;

Lynn, Jeffrey W. ;

Maple, M. Brian .

PHYSICAL REVIEW B, 2010, 82 (06)

[4] Hastatic order in the heavy-fermion compound URu2Si2 [J].

Chandra, Premala ;

Coleman, Piers ;

Flint, Rebecca .

NATURE, 2013, 493 (7434) :621-626

[5] High-Magnetic-Field Lattice Length Changes in URu2Si2 [J].

Correa, V. F. ;

Francoual, S. ;

Jaime, M. ;

Harrison, N. ;

Murphy, T. P. ;

Palm, E. C. ;

Tozer, S. W. ;

Lacerda, A. H. ;

Sharma, P. A. ;

Mydosh, J. A. .

PHYSICAL REVIEW LETTERS, 2012, 109 (24)

[6] Chemical pressure tuning of URu2Si2 via isoelectronic substitution of Ru with Fe [J].

Das, Pinaki ;

Kanchanavatee, N. ;

Helton, J. S. ;

Huang, K. ;

Baumbach, R. E. ;

Bauer, E. D. ;

White, B. D. ;

Burnett, V. W. ;

Maple, M. B. ;

Lynn, J. W. ;

Janoschek, M. .

PHYSICAL REVIEW B, 2015, 91 (08)

[7] Unfolding the physics of URu2Si2 through silicon to phosphorus substitution [J].

Gallagher, A. ;

Chen, K. -W. ;

Moir, C. M. ;

Cary, S. K. ;

Kametani, F. ;

Kikugawa, N. ;

Graf, D. ;

Albrecht-Schmitt, T. E. ;

Riggs, S. C. ;

Shekhter, A. ;

Baumbach, R. E. .

NATURE COMMUNICATIONS, 2016, 7

[8] Similarity of the Fermi Surface in the Hidden Order State and in the Antiferromagnetic State of URu2Si2 [J].

Hassinger, E. ;

Knebel, G. ;

Matsuda, T. D. ;

Aoki, D. ;

Taufour, V. ;

Flouquet, J. .

PHYSICAL REVIEW LETTERS, 2010, 105 (21)

[9] Temperature-pressure phase diagram of URu2Si2 from resistivity measurements and ac calorimetry:: Hidden order and Fermi-surface nesting [J].

Hassinger, E. ;

Knebel, G. ;

Izawa, K. ;

Lejay, P. ;

Salce, B. ;

Flouquet, J. .

PHYSICAL REVIEW B, 2008, 77 (11)

[10] Arrested Kondo effect and hidden order in URu2Si2 [J].

Haule, Kristjan ;

Kotliar, Gabriel .

NATURE PHYSICS, 2009, 5 (11) :796-799

← 1 2 3 4 →