Kapellasite: A Kagome Quantum Spin Liquid with Competing Interactions

被引：214

作者：

Fak, B. ^{[1
]}

Kermarrec, E. ^{[2
]}

Messio, L. ^{[3
]}

Bernu, B. ^{[4
]}

Lhuillier, C. ^{[4
]}

Bert, F. ^{[2
]}

Mendels, P. ^{[2
,5
]}

Koteswararao, B. ^{[2
]}

Bouquet, F. ^{[2
]}

Ollivier, J. ^{[6
]}

Hillier, A. D. ^{[7
]}

Amato, A. ^{[8
]}

Colman, R. H. ^{[9
]}

Wills, A. S.

机构：

[1] INAC, SPSMS, UMR E CEA UJF Grenoble 1, F-38054 Grenoble 9, France

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

[3] Ecole Polytech Fed Lausanne, Inst Theoret Phys, CH-1015 Lausanne, Switzerland

[4] Univ Paris 06, LPTMC, UMR 7600, CNRS, F-75252 Paris 05, France

[5] Inst Univ France, F-75005 Paris, France

[6] Inst Laue Langevin, F-38042 Grenoble, France

[7] Rutherford Appleton Lab, ISIS Facil, STFC, Didcot OX11 OQX, Oxon, England

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

[9] UCL, Dept Chem, London WC1H 0AJ, England

来源：

PHYSICAL REVIEW LETTERS | 2012年 / 109卷 / 03期

关键词：

Compendex;

D O I：

10.1103/PhysRevLett.109.037208

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Magnetic susceptibility, NMR, muon spin relaxation, and inelastic neutron scattering measurements show that kapellasite, Cu3Zn(OH)(6)Cl-2, a geometrically frustrated spin-1/2 kagome antiferromagnet polymorphic with herbertsmithite, is a gapless spin liquid showing unusual dynamic short-range correlations of noncoplanar cuboc2 type which persist down to 20 mK. The Hamiltonian is determined from a fit of a high-temperature series expansion to bulk susceptibility data and possesses competing exchange interactions. The magnetic specific heat calculated from these exchange couplings is in good agreement with experiment. The temperature dependence of the magnetic structure factor and the muon relaxation rate are calculated in a Schwinger-boson approach and compared to experimental results.

引用

页数：5

共 29 条

[1] Spin liquids in frustrated magnets [J].

Balents, Leon .

NATURE, 2010, 464 (7286) :199-208

[2] Specific heat and high-temperature series of lattice models: Interpolation scheme and examples on quantum spin systems in one and two dimensions [J].

Bernu, B ;

Misguich, G .

PHYSICAL REVIEW B, 2001, 63 (13)

[3] 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

[4] Toward Perfection: Kapellasite, Cu3Zn(OH)6Cl2, a New Model S=1/2 Kagome Antiferromagnet [J].

Colman, R. H. ;

Ritter, C. ;

Wills, A. S. .

CHEMISTRY OF MATERIALS, 2008, 20 (22) :6897-6899

[5] Comparisons between Haydeeite, α-Cu3Mg(OD)6Cl2, and Kapellasite, α-Cu3Zn(OD)6Cl2, Isostructural S=1/2 Kagome Magnets [J].

Colman, R. H. ;

Sinclair, A. ;

Wills, A. S. .

CHEMISTRY OF MATERIALS, 2010, 22 (20) :5774-5779

[6] Scale-Free Antiferromagnetic Fluctuations in the s=1/2 Kagome Antiferromagnet Herbertsmithite [J].

de Vries, M. A. ;

Stewart, J. R. ;

Deen, P. P. ;

Piatek, J. O. ;

Nilsen, G. J. ;

Ronnow, H. M. ;

Harrison, A. .

PHYSICAL REVIEW LETTERS, 2009, 103 (23)

[7] Chirality and Z2 vortices in a Heisenberg spin model on the kagome lattice [J].

Domenge, J. -C. ;

Lhuillier, C. ;

Messio, L. ;

Pierre, L. ;

Viot, P. .

PHYSICAL REVIEW B, 2008, 77 (17)

[8] 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)

[9] Spin-liquid behavior in a kagome antiferromagnet:: Deuteronium jarosite [J].

Fak, B. ;

Coomer, F. C. ;

Harrison, A. ;

Visser, D. ;

Zhitomirsky, M. E. .

EPL, 2008, 81 (01)

[10] Spin dynamics of the spin-1/2 Kagome lattice antiferromagnet ZnCu3(OH)6Cl2 [J].

Helton, J. S. ;

Matan, K. ;

Shores, M. P. ;

Nytko, E. A. ;

Bartlett, B. M. ;

Yoshida, Y. ;

Takano, Y. ;

Suslov, A. ;

Qiu, Y. ;

Chung, J. -H. ;

Nocera, D. G. ;

Lee, Y. S. .

PHYSICAL REVIEW LETTERS, 2007, 98 (10)

← 1 2 3 →