Probing the spin-spin dynamical autocorrelation function in a spin glass above T-g via muon spin relaxation

被引：101

作者：

Keren, A ^{[1
]}

Mendels, P ^{[1
]}

Campbell, IA ^{[1
]}

Lord, J ^{[1
]}

机构：

[1] RUTHERFORD APPLETON LAB,ISIS FACIL,DIDCOT OX11 0QX,OXON,ENGLAND

来源：

PHYSICAL REVIEW LETTERS | 1996年 / 77卷 / 07期

关键词：

D O I：

10.1103/PhysRevLett.77.1386

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report zero and longitudinal field muon spin relaxation measurements in the metallic spin glass AgMn(0.5 at. %) at T > T-g. We find that muon polarization obeys a time-field scaling relation which allows us to distinguish between three possible forms of the spin-spin dynamical autocorrelation function: a power law, a stretched exponential, and a cutoff power law. We also discuss the evolution of the muon relaxation line shape as the temperature approaches T-g.

引用

页码：1386 / 1389

页数：4

共 17 条

[1] Mode-coupling approximations, glass theory and disordered systems [J].

Bouchaud, JP ;

Cugliandolo, L ;

Kurchan, J ;

Mezard, M .

PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS, 1996, 226 (3-4) :243-273

[2] NONEXPONENTIAL RELAXATION IN SPIN-GLASSES AND GLASSY SYSTEMS [J].

CAMPBELL, IA ;

FLESSELLES, JM ;

JULLIEN, R ;

BOTET, R .

PHYSICAL REVIEW B, 1988, 37 (07) :3825-3828

[3] FRUSTRATION, RANDOMNESS, AND THE SPIN-GLASS TRANSITION [J].

CAMPBELL, IA ;

BERNARDI, L .

PHYSICAL REVIEW B, 1995, 52 (14) :R9819-R9822

[4] DYNAMICS IN CANONICAL SPIN-GLASSES OBSERVED BY MUON SPIN DEPOLARIZATION [J].

CAMPBELL, IA ;

AMATO, A ;

GYGAX, FN ;

HERLACH, D ;

SCHENCK, A ;

CYWINSKI, R ;

KILCOYNE, SH .

PHYSICAL REVIEW LETTERS, 1994, 72 (08) :1291-1294

[5] COMPARISON OF SPIN-GLASS DYNAMICS DETERMINED BY THE MUON-SPIN-RELAXATION AND NEUTRON SPIN-ECHO TECHNIQUES [J].

HEFFNER, RH ;

MACLAUGHLIN, DE .

PHYSICAL REVIEW B, 1984, 29 (11) :6048-6051

[6] THEORY OF DYNAMIC CRITICAL PHENOMENA [J].

HOHENBERG, PC ;

HALPERIN, BI .

REVIEWS OF MODERN PHYSICS, 1977, 49 (03) :435-479

[7] CRITICAL-DYNAMICS OF METALLIC SPIN-GLASSES [J].

LEVY, LP .

PHYSICAL REVIEW B, 1988, 38 (07) :4963-4973

[8] EVIDENCE FOR POWER-LAW SPIN-CORRELATION DECAY FROM MUON SPIN RELAXATION IN AGMN SPIN-GLASS [J].

MACLAUGHLIN, DE ;

GUPTA, LC ;

COOKE, DW ;

HEFFNER, RH ;

LEON, M ;

SCHILLACI, ME .

PHYSICAL REVIEW LETTERS, 1983, 51 (10) :927-930

[9] COMBINED 3-DIMENSIONAL POLARIZATION ANALYSIS AND SPIN-ECHO STUDY OF SPIN-GLASS DYNAMICS [J].

MEZEI, F ;

MURANI, AP .

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 1979, 14 (2-3) :211-213

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

OGIELSKI, AT .

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

← 1 2 →