Low temperature spin dynamics of the geometrically frustrated antiferromagnetic garnet Gd3Ga5O12

被引：57

作者：

Dunsiger, SR ^{[1
]}

Gardner, JS

Chakhalian, JA

Cornelius, AL

Jaime, M

Kiefl, RF

Movshovich, R

MacFarlane, WA

Miller, RI

Sonier, JE

Gaulin, BD

机构：

[1] Univ British Columbia, Dept Phys & Astron, Vancouver, BC V6T 1Z1, Canada

[2] McMaster Univ, Dept Phys & Astron, Hamilton, ON L8S 4M1, Canada

[3] Univ Nevada, Dept Phys, Las Vegas, NV 89154 USA

[4] Univ Calif Los Alamos Natl Lab, Los Alamos, NM 87545 USA

[5] TRIUMF, Vancouver, BC V6T 2A3, Canada

来源：

PHYSICAL REVIEW LETTERS | 2000年 / 85卷 / 16期

关键词：

D O I：

10.1103/PhysRevLett.85.3504

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The low temperature spin dynamics of the geometrically frustrated antiferromagnet Gd3Ga5O12 (GGG) have been investigated using muon spin relaxation. No evidence for static order is seen down to a temperature of 25 mK or a few percent of the Curie-Weiss temperature. Instead there is a linear decrease in the Gd spin fluctuation rate below 1 K which extrapolates to a small but finite value of 2 GHz at zero temperature. In terms of the spin fluctuations the system appears essentially to remain dynamic at low temperatures (T > 0.02 K) and magnetic fields up to 1.8 T.

引用

页码：3504 / 3507

页数：4

共 33 条

[1] ORDER BY DISORDER IN AN ANISOTROPIC PYROCHLORE LATTICE ANTIFERROMAGNET [J].

BRAMWELL, ST ;

GINGRAS, MJP ;

REIMERS, JN .

JOURNAL OF APPLIED PHYSICS, 1994, 75 (10) :5523-5525

[2] IMPLANTED MUON STUDIES IN CONDENSED MATTER SCIENCE [J].

COX, SFJ .

JOURNAL OF PHYSICS C-SOLID STATE PHYSICS, 1987, 20 (22) :3187-3319

[3]

Diep H T., 1994, Magnetic systems with competing interactions: frustrated spin systems

[4] Muon spin relaxation investigation of the spin dynamics of geometrically frustrated antiferromagnets Y2Mo2O7 and Tb2Mo2O7 [J].

Dunsiger, SR ;

Kiefl, RF ;

Chow, KH ;

Gaulin, BD ;

Gingras, MJP ;

Greedan, JE ;

Keren, A ;

Kojima, K ;

Luke, GM ;

MacFarlane, WA ;

Raju, NP ;

Sonier, JE ;

Uemura, YJ ;

Wu, WD .

PHYSICAL REVIEW B, 1996, 54 (13) :9019-9022

[5] Glassy statics and dynamics in the chemically ordered pyrochlore anti-ferromagnet Y2Mo2O7 [J].

Gardner, JS ;

Gaulin, BD ;

Lee, SH ;

Broholm, C ;

Raju, NP ;

Greedan, JE .

PHYSICAL REVIEW LETTERS, 1999, 83 (01) :211-214

[6] Cooperative paramagnetism in the geometrically frustrated pyrochlore antiferromagnet Tb2Ti2O7 [J].

Gardner, JS ;

Dunsiger, SR ;

Gaulin, BD ;

Gingras, MJP ;

Greedan, JE ;

Kiefl, RF ;

Lumsden, MD ;

MacFarlane, WA ;

Raju, NP ;

Sonier, JE ;

Swainson, I ;

Tun, Z .

PHYSICAL REVIEW LETTERS, 1999, 82 (05) :1012-1015

[7] SPIN FREEZING IN THE GEOMETRICALLY FRUSTRATED PYROCHLORE ANTIFERROMAGNET TB2MO2O7 [J].

GAULIN, BD ;

REIMERS, JN ;

MASON, TE ;

GREEDAN, JE ;

TUN, Z .

PHYSICAL REVIEW LETTERS, 1992, 69 (22) :3244-3247

[8] MAGNETIC PHASE-DIAGRAM OF GADOLINIUM GALLIUM GARNET [J].

HOV, S ;

BRATSBERG, H ;

SKJELTORP, AT .

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 1980, 15-8 (JAN-) :455-456

[9] Probing the spin-spin dynamical autocorrelation function in a spin glass above T-g via muon spin relaxation [J].

Keren, A ;

Mendels, P ;

Campbell, IA ;

Lord, J .

PHYSICAL REVIEW LETTERS, 1996, 77 (07) :1386-1389

[10] MAGNETIC-INTERACTIONS AND SHORT-RANGE ORDER IN GADOLINIUM GALLIUM GARNET [J].

KINNEY, WI ;

WOLF, WP .

JOURNAL OF APPLIED PHYSICS, 1979, 50 (03) :2115-2117

← 1 2 3 4 →