SPIN DYNAMICS IN THE SPIN-GLASS PHASE OF Y(MN1-XALX)2

被引：28

作者：

CYWINSKI, R ^{[1
]}

RAINFORD, BD ^{[1
]}

机构：

[1] UNIV SOUTHAMPTON,DEPT PHYS,SOUTHAMPTON SO9 5NH,HANTS,ENGLAND

来源：

HYPERFINE INTERACTIONS | 1994年 / 85卷 / 1-4期

关键词：

D O I：

10.1007/BF02069424

中图分类号：

O64 [物理化学（理论化学）、化学物理学]; O56 [分子物理学、原子物理学];

学科分类号：

070203 ; 070304 ; 081704 ; 1406 ;

摘要：

Zero field muSR has been used to probe spin dynamics in the concentrated spin glass Y(Mn0.9Al0.1)2. The spectra follow a stretched exponential form, G(z)(t)=exp(-(LAMBDAt)beta), with beta reaching 1/3 as the freezing temperature, T(g)=60K is approached. The evolution of G(z)(t) with temperature is suggestive of the behaviour of the spin correlation function found by Ogielski in Monte Carlo simulations of the dynamics of the Ising spin glass model. The muSR results are correlated with results previously obtained by inelastic neutron scattering.

引用

页码：215 / 220

页数：6

共 13 条

[1]

BREWER JH, 1986, HYPERFINE INTERACT, V31, P382

[2] MAGNETIC ORDER AND MOMENT STABILITY IN YMN2 [J].

CYWINSKI, R ;

KILCOYNE, SH ;

SCOTT, CA .

JOURNAL OF PHYSICS-CONDENSED MATTER, 1991, 3 (33) :6473-6488

[3]

CYWINSKI R, 1990, HYPERFINE INTERACT, V64, P427, DOI 10.1007/BF02396173

[4]

DAKIN S, 1992, THESIS ILL SOUTHAMPT

[5] NEUTRON-SCATTERING STUDY OF THE ITINERANT-ELECTRON MAGNET YMN2 [J].

FRELTOFT, T ;

BONI, P ;

SHIRANE, G ;

MOTOYA, K .

PHYSICAL REVIEW B, 1988, 37 (07) :3454-3460

[6]

LOVESEY SW, 1990, HYPERFINE INTERACT, V64, P321, DOI 10.1007/BF02396159

[7] PRESSURE-DEPENDENCE OF THE MAGNETIC ORDER IN YMN2 AND TBMN2 [J].

MONDAL, S ;

CYWINSKI, R ;

KILCOYNE, SH ;

RAINFORD, BD ;

RITTER, C .

PHYSICA B, 1992, 180 :108-110

[8] SPIN-GLASS BEHAVIOR IN Y(MN1-XALX)2 [J].

MOTOYA, K .

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 1986, 55 (11) :3733-3736

[9] SPIN DYNAMICS OF THE CONCENTRATED SPIN-GLASS Y(MN0.9AL0.1)2 [J].

MOTOYA, K ;

SHAPIRO, SM ;

REBELSKY, L ;

TORIKACHVILI, MS .

PHYSICAL REVIEW B, 1991, 44 (01) :183-189

[10] DYNAMICS OF 3-DIMENSIONAL ISING SPIN-GLASSES IN THERMAL-EQUILIBRIUM [J].

OGIELSKI, AT .

PHYSICAL REVIEW B, 1985, 32 (11) :7384-7398

← 1 2 →