NATURE OF THE ORDER-PARAMETER IN THE HEAVY-FERMION SYSTEM URU2SI2

被引：67

作者：

WALKER, MB

BUYERS, WJL

TUN, Z

QUE, W

MENOVSKY, AA

GARRETT, JD

机构：

[1] AECL RES, CHALK RIVER K0J 1J0, ON, CANADA

[2] UNIV TORONTO, TORONTO M5S 1A7, ONTARIO, CANADA

[3] UNIV AMSTERDAM, NATUURKUNDIG LAB, 1018 XE AMSTERDAM, NETHERLANDS

[4] MCMASTER UNIV, INST MAT RES, HAMILTON L8S 4M, ON, CANADA

来源：

PHYSICAL REVIEW LETTERS | 1993年 / 71卷 / 16期

关键词：

D O I：

10.1103/PhysRevLett.71.2630

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The weak order parameter observed below the 17.5 K transition in URu2Si2 has been variously attributed to magnetic dipoles, quadrupoles, or octupoles. By polarized neutron scattering we show that the order parameter breaks time reversal invariance and so can not be quadrupolar or a spin nematic. Of the five dipolar and octupolar order parameters that are then allowed by symmetry, polarization analysis reveals that only the spin dipole, M(z), orders at the transition.

引用

页码：2630 / 2633

页数：4

共 16 条

[1] POSSIBILITY OF OBSERVATION OF NONTRIVIAL MAGNETIC ORDER BY ELASTIC NEUTRON-SCATTERING IN MAGNETIC-FIELD [J].

BARZYKIN, V ;

GORKOV, LP .

PHYSICAL REVIEW LETTERS, 1993, 70 (16) :2479-2482

[2] MAGNETIC EXCITATIONS IN THE HEAVY-FERMION SUPERCONDUCTOR URU2SI2 [J].

BROHOLM, C ;

LIN, H ;

MATTHEWS, PT ;

MASON, TE ;

BUYERS, WJL ;

COLLINS, MF ;

MENOVSKY, AA ;

MYDOSH, JA ;

KJEMS, JK .

PHYSICAL REVIEW B, 1991, 43 (16) :12809-12822

[3] MAGNETIC EXCITATIONS AND ORDERING IN THE HEAVY-ELECTRON SUPERCONDUCTOR URU2SI2 [J].

BROHOLM, C ;

KJEMS, JK ;

BUYERS, WJL ;

MATTHEWS, P ;

PALSTRA, TTM ;

MENOVSKY, AA ;

MYDOSH, JA .

PHYSICAL REVIEW LETTERS, 1987, 58 (14) :1467-1470

[4] SPIN CORRELATORS AND WEAK ANTIFERROMAGNETISM IN HEAVY FERMIONS [J].

GORKOV, LP .

EUROPHYSICS LETTERS, 1991, 16 (03) :301-306

[5] NONTRIVIAL MAGNETIC ORDER - LOCALIZED VERSUS ITINERANT SYSTEMS [J].

GORKOV, LP ;

SOKOL, A .

PHYSICAL REVIEW LETTERS, 1992, 69 (17) :2586-2589

[6] X-RAY MAGNETIC SCATTERING IN ANTIFERROMAGNETIC URU2SI2 [J].

ISAACS, ED ;

MCWHAN, DB ;

KLEIMAN, RN ;

BISHOP, DJ ;

ICE, GE ;

ZSCHACK, P ;

GAULIN, BD ;

MASON, TE ;

GARRETT, JD ;

BUYERS, WJL .

PHYSICAL REVIEW LETTERS, 1990, 65 (25) :3185-3188

[7]

LIBERO V, UNPUB

[8]

LOVESEY SW, 1984, THEORY THERMAL NEUTR, V2, P155

[9] MAGNETIC-SUSCEPTIBILITY OF CSMNBR3 NEAR THE TETRACRITICAL POINT [J].

MASON, TE ;

STAGER, CV ;

GAULIN, BD ;

COLLINS, MF .

PHYSICAL REVIEW B, 1990, 42 (04) :2715-2717

[10] NEUTRON-SCATTERING MEASUREMENTS OF LONG-RANGE ANTIFERROMAGNETIC ORDER IN URU2SI2 [J].

MASON, TE ;

GAULIN, BD ;

GARRETT, JD ;

TUN, Z ;

BUYERS, WJL ;

ISAACS, ED .

PHYSICAL REVIEW LETTERS, 1990, 65 (25) :3189-3192

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