Neutron scattering studies of geometrically frustrated pyrochlore antiferromagnets

被引：13

作者：

Gaulin, BD ^{[1
]}

Gardner, JS

Dunsiger, SR

Tun, Z

Lumsden, MD

Kiefl, RF

Raju, NP

Reimers, JN

Greedan, JE

机构：

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

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

[3] AECL Res, Chalk River Labs, Neutron Program Mat Res, Natl Res Council, Chalk River, ON K0J 1J0, Canada

[4] McMaster Univ, Dept Chem, Hamilton, ON L8S 4M1, Canada

[5] Moli Energy 1990 Ltd, Maple Ridge, BC V2X 9E7, Canada

来源：

PHYSICA B | 1997年 / 241卷

关键词：

geometrical frustration; antiferromagnetism; spin-glass-like state;

D O I：

10.1016/S0921-4526(97)00631-5

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Elastic and inelastic neutron scattering work on the cubic pyrochlore antiferromagnets Y2Mo2O7, Tb2Ti2O7, and Tb2Mo2O7, is reviewed. These materials are characterized by antiferromagnetically coupled moments residing on a network of corner-sharing tetrahedra. Geometrical frustration manifests itself strongly in such systems in that two of them display a spin-glass-like transition in the apparent absence of chemical disorder, while the other remains paramagnetic to at least 0.1 K, despite developing antiferromagnetic short-range order at 50 K. (C) 1998 Elsevier Science B.V. All rights reserved.

引用

页码：511 / 516

页数：6

共 26 条

[1] ORDERING AND ANTIFERROMAGNETISM IN FERRITES [J].

ANDERSON, PW .

PHYSICAL REVIEW, 1956, 102 (04) :1008-1013

[2]

[Anonymous], METHODS EXPT PHYS

[3] ORDRE MAGNETIQUE A COURTE DISTANCE DANS LES SOLUTIONS SOLIDES MNXCRU-XS [J].

BERTAUT, EF ;

BURLET, P .

SOLID STATE COMMUNICATIONS, 1967, 5 (04) :279-&

[4] ANTIFERROMAGNETIC FLUCTUATIONS AND SHORT-RANGE ORDER IN A KAGOME LATTICE [J].

BROHOLM, C ;

AEPPLI, G ;

ESPINOSA, GP ;

COOPER, AS .

PHYSICAL REVIEW LETTERS, 1990, 65 (25) :3173-3176

[5] HIDDEN ORDER IN A FRUSTRATED SYSTEM - PROPERTIES OF THE HEISENBERG KAGOME ANTIFERROMAGNET [J].

CHALKER, JT ;

HOLDSWORTH, PCW ;

SHENDER, EF .

PHYSICAL REVIEW LETTERS, 1992, 68 (06) :855-858

[6]

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

[7] 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

[8]

FEREY G, 1986, REV CHIM MINER, V23, P474

[9]

FUJITA O, 1995, PHYS REV LETT, V74, P16

[10]

GARDNER JV, IN PRESS

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