Spangolite: an s=1/2 maple leaf lattice antiferromagnet?

被引：28

作者：

Fennell, T. ^{[1
,4
]}

Piatek, J. O. ^{[2
]}

Stephenson, R. A. ^{[3
]}

Nilsen, G. J. ^{[2
]}

Ronnow, H. M. ^{[2
]}

机构：

[1] Inst Max Von Laue Paul Langevin, F-38042 Grenoble 9, France

[2] Ecole Polytech Fed Lausanne, Lab Quantum Magnetism, CH-1015 Lausanne, Switzerland

[3] Univ Southampton, Sch Chem, Southampton SO17 1BJ, Hants, England

[4] London Ctr Nanotechnol, London WC1H 0AH, England

来源：

JOURNAL OF PHYSICS-CONDENSED MATTER | 2011年 / 23卷 / 16期

基金：

英国工程与自然科学研究理事会;

关键词：

MIXED MU-ACETATO; MAGNETIC-PROPERTIES; CRYSTAL-STRUCTURE; TRINUCLEAR; COMPLEXES; PHASE; EPR;

D O I：

10.1088/0953-8984/23/16/164201

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Spangolite, Cu6Al(SO4)(OH)(12)Cl center dot 3H(2)O, is a hydrated layered copper sulfate mineral. The Cu2+ ions of each layer form a systematically depleted triangular lattice which approximates a maple leaf lattice. We present details of the crystal structure, which suggest that in spangolite this lattice actually comprises two species of edge linked trimers with different exchange parameters. However, magnetic susceptibility measurements show that despite the structural trimers, the magnetic properties are dominated by dimerization. The high temperature magnetic moment is strongly reduced below that expected for the six s = 1/2 in the unit cell.

引用

页数：6

共 32 条

[21] Magnetic excitations of the gapped quantum spin dimer antiferromagnet Sr3Cr2O8 [J].

Quintero-Castro, D. L. ;

Lake, B. ;

Wheeler, E. M. ;

Islam, A. T. M. N. ;

Guidi, T. ;

Rule, K. C. ;

Izaola, Z. ;

Russina, M. ;

Kiefer, K. ;

Skourski, Y. .

PHYSICAL REVIEW B, 2010, 81 (01)

[22] Magnetic properties of a novel quasi-2D Cu(II)-trimer system [J].

Removic-Langer, Katarina ;

Haussuehl, Eiken ;

Wiehl, Leonore ;

Wolf, Bernd ;

Sauli, Francesca ;

Hasselmann, Nils ;

Kopietz, Peter ;

Lang, Michael .

JOURNAL OF PHYSICS-CONDENSED MATTER, 2009, 21 (18)

[23]

Richter J, 2004, LECT NOTES PHYS, V645, P85

[24] Formation of collective spins in frustrated clusters [J].

Robert, J. ;

Simonet, V. ;

Canals, B. ;

Ballou, R. ;

Lhotel, E. ;

Darie, C. ;

Bordet, P. ;

Ouladdiaf, B. ;

Johnson, M. ;

Ollivier, J. ;

Braithwaite, D. ;

Rakoto, H. ;

de Brion, S. .

PHYSICAL REVIEW B, 2008, 77 (05)

[25] Ferromagnetic coupling in trinuclear, partial cubane CuII complexes with a μ3-OH core:: Magnetostructural correlations [J].

Sarkar, Biswarup ;

Ray, Mau Sinha ;

Li, Yi-Zhi ;

Song, You ;

Figuerola, Albert ;

Ruiz, Eliseo ;

Cirera, Jordi ;

Cano, Joan ;

Ghosh, Ashutosh .

CHEMISTRY-A EUROPEAN JOURNAL, 2007, 13 (33) :9297-9309

[26] The spin-1/2 Heisenberg antiferromagnet on a 1/7-depleted triangular lattice: Ground-state properties [J].

Schmalfuss, D ;

Tomczak, P ;

Schulenburg, J ;

Richter, J .

PHYSICAL REVIEW B, 2002, 65 (22) :1-8

[27] A short history of SHELX [J].

Sheldrick, George M. .

ACTA CRYSTALLOGRAPHICA A-FOUNDATION AND ADVANCES, 2008, 64 :112-122

[28] PHASE ANNEALING IN SHELX-90 - DIRECT METHODS FOR LARGER STRUCTURES [J].

SHELDRICK, GM .

ACTA CRYSTALLOGRAPHICA SECTION A, 1990, 46 :467-473

[29] Singlet ground state in the spin-1/2 dimer compound Sr3Cr2O8 [J].

Singh, Yogesh ;

Johnston, D. C. .

PHYSICAL REVIEW B, 2007, 76 (01)

[30] Singlet-triplet dispersion reveals additional frustration in the triangular-lattice dimer compound Ba3Mn2O8 [J].

Stone, M. B. ;

Lumsden, M. D. ;

Chang, S. ;

Samulon, E. C. ;

Batista, C. D. ;

Fisher, I. R. .

PHYSICAL REVIEW LETTERS, 2008, 100 (23)

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