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

[1] New developments in the Inorganic Crystal Structure Database (ICSD): accessibility in support of materials research and design [J].

Belsky, A ;

Hellenbrandt, M ;

Karen, VL ;

Luksch, P .

ACTA CRYSTALLOGRAPHICA SECTION B-STRUCTURAL SCIENCE, 2002, 58 :364-369

[2] Compounds with the "maple leaf" lattice:: Synthesis, structure, and magnetism of Mx[Fe(O2CCH2)2NCH2PO3]6•nH2O [J].

Cave, D ;

Coomer, FC ;

Molinos, E ;

Klauss, HH ;

Wood, PT .

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2006, 45 (05) :803-806

[3] 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)

[4]

FRONDEL C, 1949, AM MINERAL, V34, P181

[5]

Goodenough JB., 1963, MAGNETISM CHEM BOND

[6] The field-induced magnetic phase of the spin-dimer system Cs3Cr2Br9:: Effect of field orientation [J].

Grenier, B. ;

Regnault, L. -P. ;

Inagaki, Y. ;

Ajiro, Y. ;

Ziman, T. ;

Boucher, J. P. .

PHYSICA B-CONDENSED MATTER, 2006, 385 (447-449) :447-449

[7] Countercomplementarity and strong ferromagnetic coupling in a linear mixed μ-acetato, μ-hydroxo trinuclear copper(II) complex.: Synthesis, structure, magnetic properties, EPR, and theoretical studies [J].

Gutierrez, L ;

Alzuet, G ;

Real, JA ;

Cano, J ;

Borrás, J ;

Castiñeiras, A .

INORGANIC CHEMISTRY, 2000, 39 (16) :3608-3614

[8]

Gutierrez L, 2002, EUR J INORG CHEM, P2094

[9] Neutron scattering and magnetic observables for S=1/2 spin clusters and molecular magnets -: art. no. 064403 [J].

Haraldsen, JT ;

Barnes, T ;

Musfeldt, JL .

PHYSICAL REVIEW B, 2005, 71 (06)

[10]

HAWTHORNE FC, 1993, AM MINERAL, V78, P649

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