Quantum tetrahedral mean field theory of the magnetic susceptibility for the pyrochlore lattice

被引：56

作者：

García-Adeva, AJ ^{[1
]}

Huber, DL ^{[1
]}

机构：

[1] Univ Wisconsin, Dept Phys, Madison, WI 53706 USA

来源：

PHYSICAL REVIEW LETTERS | 2000年 / 85卷 / 21期

关键词：

D O I：

10.1103/PhysRevLett.85.4598

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A quantum mean field theory of the pyrochlore lattice is presented. The starting paint is not the individual magnetic ions, as in the usual Curie-Weiss mean field theory, but a set of interacting corner-sharing tetrahedra. We check the consistency of the model against magnetic susceptibility data and find good agreement between the theoretical predictions and the experimental data. Implications of the model and future extensions are also discussed.

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页码：4598 / 4601

页数：4

相关论文

共 25 条

[1] Bulk magnetization of the heavy rare earth titanate pyrochlores - a series of model frustrated magnets [J].

Bramwell, ST ;

Field, MN ;

Harris, MJ ;

Parkin, IP .

JOURNAL OF PHYSICS-CONDENSED MATTER, 2000, 12 (04) :483-495

[2] Quantum spin liquid: The Heisenberg antiferromagnet on the three-dimensional pyrochlore lattice [J].

Canals, B ;

Lacroix, C .

PHYSICAL REVIEW B, 2000, 61 (02) :1149-1159

[3] Pyrochlore antiferromagnet: A three-dimensional quantum spin liquid [J].

Canals, B ;

Lacroix, C .

PHYSICAL REVIEW LETTERS, 1998, 80 (13) :2933-2936

[4]

GARCIAADEVA AJ, 2000, IN PRESS P HIGHL FRU

[5] 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

[6] Static critical behavior of the spin-freezing transition in the geometrically frustrated pyrochlore antiferromagnet Y2Mo2O7 [J].

Gingras, MJP ;

Stager, CV ;

Raju, NP ;

Gaulin, BD ;

Greedan, JE .

PHYSICAL REVIEW LETTERS, 1997, 78 (05) :947-950

[7] Frustrated pyrochlore oxides, Y2Mn2O7, Ho2Mn2O7, and Yb2Mn2O7: Bulk magnetism and magnetic microstructure [J].

Greedan, JE ;

Raju, NP ;

Maignan, A ;

Simon, C ;

Pedersen, JS ;

Niraimathi, AM ;

Gmelin, E ;

Subramanian, MA .

PHYSICAL REVIEW B, 1996, 54 (10) :7189-7200

[8] SPIN-GLASS-LIKE BEHAVIOR IN Y2MO2O7, A CONCENTRATED, CRYSTALLINE SYSTEM WITH NEGLIGIBLE APPARENT DISORDER [J].

GREEDAN, JE ;

SATO, M ;

XU, Y ;

RAZAVI, FS .

SOLID STATE COMMUNICATIONS, 1986, 59 (12) :895-897

[9] ORDERING BY QUANTUM FLUCTUATIONS IN A STRONGLY FRUSTRATED HEISENBERG-ANTIFERROMAGNET [J].

HARRIS, AB ;

BERLINSKY, AJ ;

BRUDER, C .

JOURNAL OF APPLIED PHYSICS, 1991, 69 (08) :5200-5202

[10] Crystal-field studies of magnetic susceptibility, hyperfine, and specific heat properties of a Ho2Ti2O7 single crystal [J].

Jana, YM ;

Ghosh, D .

PHYSICAL REVIEW B, 2000, 61 (14) :9657-9664