DIPOLAR MAGNETIC ORDER WITH LARGE QUANTUM SPIN FLUCTUATIONS IN A DIAMOND LATTICE

被引：20

作者：

WHITE, SJ

ROSER, MR

XU, JC

VANDERNOORDAA, JT

CORRUCCINI, LR

机构：

[1] Department of Physics, University of California, Davis

来源：

PHYSICAL REVIEW LETTERS | 1993年 / 71卷 / 21期

关键词：

D O I：

10.1103/PhysRevLett.71.3553

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report the first observation of dipolar magnetic order in a diamond lattice, in the RPO4-(MoO3)12.30H2O compounds (R=Gd, Dy, Er). Theory predicts antiferromagnetic order for a diamond lattice of dipoles, with a susceptibility at T=0 depending only on lattice symmetry and spin. We present experimental susceptibilities for ions with different effective spin which are consistent with these predictions, and which confirm the existence of unusually large quantum spin fluctuations in these materials. The fluctuations substantially exceed those of the Heisenberg antiferromagnet.

引用

页码：3553 / 3556

页数：4

共 19 条

[1]

ABRAGAM A, 1982, NUCLEAR MAGNETISM OR, P595

[2]

ABRAGAM A, 1982, NUCLEAR MAGNETISM OR, P7

[3]

ABRAGAM A, 1982, NUCLEAR MAGNETISM OR, P500

[4] ELECTRON PARAMAGNETIC RESONANCE OF SEVERAL RARE-EARTH IMPURITIES IN CUBIC PEROVSKITE KMGF3 [J].

ABRAHAM, MM ;

FINCH, CB ;

KOLOPUS, JL ;

LEWIS, JT .

PHYSICAL REVIEW B, 1971, 3 (09) :2855-&

[5]

ABRAHAM MM, 1967, 14 C AMP, P282

[6] QUELQUES PROPRIETES DES NIVEAUX CRISTALLINS GAMMA-8 EN SYMETRIE CUBIQUE [J].

AYANT, Y ;

BELORIZKY, E ;

ROSSET, J .

JOURNAL DE PHYSIQUE ET LE RADIUM, 1962, 23 (04) :201-207

[7] DIPOLAR FERROMAGNETISM AT 0-DEGREES-K [J].

COHEN, MH ;

KEFFER, F .

PHYSICAL REVIEW, 1955, 99 (04) :1135-1140

[8] FERROMAGNETISM IN LITHIUM HOLMIUM FLUORIDE - LIHOF4 .1. MAGNETIC MEASUREMENTS [J].

COOKE, AH ;

JONES, DA ;

SILVA, JFA ;

WELLS, MR .

JOURNAL OF PHYSICS C-SOLID STATE PHYSICS, 1975, 8 (23) :4083-4088

[9] DIPOLAR ANTIFERROMAGNETISM IN THE SPIN-WAVE APPROXIMATION [J].

CORRUCCINI, LR ;

WHITE, SJ .

PHYSICAL REVIEW B, 1993, 47 (02) :773-777

[10] ELECTRON PARAMAGNETIC RESONANCE OF THE ER-3+ ION IN MAGNESIUM OXIDE [J].

DESCAMPS, D ;

DAUBIGNE, YM .

PHYSICS LETTERS, 1964, 8 (01) :5-7

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