Quantum magnetism in the paratacamite family: Towards an ideal kagome lattice

被引：418

作者：

Mendels, P. ^{[1
]}

Bert, F.

de Vries, M. A.

Olariu, A.

Harrison, A.

Duc, F.

Trombe, J. C.

Lord, J. S.

Amato, A.

Baines, C.

机构：

[1] Univ Paris 11, UMR 8502, CNRS, Phys Solides Lab, F-91405 Orsay, France

[2] Univ Edinburgh, Sch Chem, Edinburgh EH9 3JZ, Midlothian, Scotland

[3] Univ Edinburgh, CSEC, Edinburgh EH9 3JZ, Midlothian, Scotland

[4] Ctr Elaborat Mat & Etud Struct, CNRS, UPR 8011, F-31055 Toulouse, France

[5] Rutherford Appleton Lab, ISIS Facil, Didcot OX11 0QX, Oxon, England

[6] Paul Scherrer Inst, Lab Muon Spin Spect, CH-5232 Villigen, Switzerland

来源：

PHYSICAL REVIEW LETTERS | 2007年 / 98卷 / 07期

关键词：

D O I：

10.1103/PhysRevLett.98.077204

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report muon spin rotation measurements on the S=1/2 (Cu2+) paratacamite ZnxCu4-x(OH)(6)Cl-2 family. Despite a Weiss temperature of similar to-300 K, the x=1 compound is found to have no transition to a magnetic frozen state down to 50 mK as theoretically expected for the kagome Heisenberg antiferromagnet. We find that the limit between a dynamical and a partly frozen ground state occurs around x=0.5. For x=1, we discuss the relevance to a singlet picture.

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页数：4

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共 20 条

[1] RESONATING VALENCE BONDS - NEW KIND OF INSULATOR [J].

ANDERSON, PW .

MATERIALS RESEARCH BULLETIN, 1973, 8 (02) :153-160

[2] Direct evidence for a dynamical ground state in the highly frustrated Tb2Sn2O7 pyrochlore [J].

Bert, F. ;

Mendels, P. ;

Olariu, A. ;

Blanchard, N. ;

Collin, G. ;

Amato, A. ;

Baines, C. ;

Hillier, A. D. .

PHYSICAL REVIEW LETTERS, 2006, 97 (11)

[3] μSR study of the quantum dynamics in the frustrated S = 3/2 kagome bilayers -: art. no. 187201 [J].

Bono, D ;

Mendels, P ;

Collin, G ;

Blanchard, N ;

Bert, F ;

Amato, A ;

Baines, C ;

Hillier, AD .

PHYSICAL REVIEW LETTERS, 2004, 93 (18) :187201-1

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

Canals, B ;

Lacroix, C .

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

[5] Twelve sublattice ordered phase in the J1-J2 model on the kagome lattice -: art. no. 024433 [J].

Domenge, JC ;

Sindzingre, P ;

Lhuillier, C ;

Pierre, L .

PHYSICAL REVIEW B, 2005, 72 (02)

[6] Muon spin relaxation and susceptibility studies of the pure and diluted spin 1/2 Kagome-like lattice system (CuxZn1-x)3V2O7(OH2) 2H2O -: art. no. 207603 [J].

Fukaya, A ;

Fudamoto, Y ;

Gat, IM ;

Ito, T ;

Larkin, MI ;

Savici, AT ;

Uemura, YJ ;

Kyriakou, PP ;

Luke, GM ;

Rovers, MT ;

Kojima, KM ;

Keren, A ;

Hanawa, M ;

Hiroi, Z .

PHYSICAL REVIEW LETTERS, 2003, 91 (20)

[7] 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

[8] Spin-1/2 kagome-like lattice in Volborthite Cu3V2O7(OH)2•2H2O [J].

Hiroi, Z ;

Hanawa, M ;

Kobayashi, N ;

Nohara, M ;

Takagi, H ;

Kato, Y ;

Takigawa, M .

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 2001, 70 (11) :3377-3384

[9] Order versus disorder in the quantum Heisenberg antiferromagnet on the kagome lattice using exact spectra analysis [J].

Lecheminant, P ;

Bernu, B ;

Lhuillier, C ;

Pierre, L ;

Sindzingre, P .

PHYSICAL REVIEW B, 1997, 56 (05) :2521-2529

[10] Muon spin relaxation in strongly coupled systems [J].

Lord, JS ;

Cottrell, SP ;

Williams, WG .

PHYSICA B, 2000, 289 :495-498