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A Structurally Perfect S = 1/2 Kagomé Antiferromagnet
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Section:Abstract
The syntheses and magnetic susceptibilities of a pure series of rare copper minerals from the atacamite family with general formula ZnxCu4-x(OH)6Cl2 (0 ≤ x ≤ 1) are reported. The structure of these compounds features a corner-sharing triangular kagomé lattice of antiferromagnetically coupled Cu(II) ions. We correlate the onset of magnetic ordering with the mole fraction of paramagnetic Cu(II) ions located between kagomé layers and demonstrate that the fully Zn-substituted compound shows no magnetic ordering down to 2 K, resulting in a highly spin-frustrated S = 1/2 lattice.
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This article has been cited by 27 ACS Journal articles (5 most recent appear below).
Crystal and Magnetic Structures and Magnetic Properties of Selenate Containing Natrochalcite, AIMII2(H3O2)(SeO4)2 Where A = Na or K and M = Mn, Co, or Ni
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Structural Phase Transition in the S = 1/2 Kagome System Cs2ZrCu3F12 and a Comparison to the Valence-Bond-Solid Phase in Rb2SnCu3F12
Sandra A. Reisinger, Chiu C. Tang, Stephen P. Thompson, Finlay D. Morrison, and Philip LightfootChemistry of Materials2011 Article ASAPStructural Phase Transition in the S = 1/2 Kagome System Cs2ZrCu3F12 and a Comparison to the Valence-Bond-Solid Phase in Rb2SnCu3F12
Sandra A. Reisinger, Chiu C. Tang, Stephen P. Thompson, Finlay D. Morrison, and Philip LightfootChemistry of Materials2011 Article ASAPThe crystal structure of the S = 1/2 kagome system Cs2ZrCu3F12 has been determined at both 295 and 125 K via single-crystal X-ray diffraction. A first-order structural phase transition is seen near 225 K, confirmed by variable-temperature synchrotron ...
Magnetic and Crystallographic Studies of Mg-Herbertsmithite, γ-Cu3Mg(OH)6Cl2—A New S = 1/2 Kagome Magnet and Candidate Spin Liquid
R. H. Colman, A. Sinclair, and A. S. WillsChemistry of Materials2011 23 (7), 1811-1817Magnetic and Crystallographic Studies of Mg-Herbertsmithite, γ-Cu3Mg(OH)6Cl2—A New S = 1/2 Kagome Magnet and Candidate Spin Liquid
R. H. Colman, A. Sinclair, and A. S. WillsChemistry of Materials2011 23 (7), 1811-1817Studies are presented of the synthesis, crystal structure, and magnetic properties of the new quantum kagome magnet Mg-herbertsmithite, γ-Cu3Mg(OH)6Cl2. The material features strong antiferromagnetic exchange characterized by a Weiss temperature of θW
−...
Flexible Mixed-Spin Kagomé Coordination Polymers with Reversible Magnetism Triggered by Dehydration and Rehydration
Wei-Xiong Zhang, Wei Xue, and Xiao-Ming ChenInorganic Chemistry2011 50 (1), 309-316Flexible Mixed-Spin Kagomé Coordination Polymers with Reversible Magnetism Triggered by Dehydration and Rehydration
Wei-Xiong Zhang, Wei Xue, and Xiao-Ming ChenInorganic Chemistry2011 50 (1), 309-316Two new two-dimensional (2D) heterometal coordination polymers [Cu2M(tzdc)2(H2O)2]·2H2O [M = Fe2+ (1) or Mn2+ (2); tzdc3− = 1,2,3-triazole-4,5-dicarboxylate] were assembled by using the tzdc3−, Cu2+, and Fe2+/Mn2+ ions. Single-crystal X-ray analysis ...
Site Specific X-ray Anomalous Dispersion of the Geometrically Frustrated Kagomé Magnet, Herbertsmithite, ZnCu3(OH)6Cl2
Danna E. Freedman, Tianheng H. Han, Andrea Prodi, Peter Müller, Qing-Zhen Huang, Yu-Sheng Chen, Samuel M. Webb, Young S. Lee, Tyrel M. McQueen, and Daniel G. NoceraJournal of the American Chemical Society2010 132 (45), 16185-16190Site Specific X-ray Anomalous Dispersion of the Geometrically Frustrated Kagomé Magnet, Herbertsmithite, ZnCu3(OH)6Cl2
Danna E. Freedman, Tianheng H. Han, Andrea Prodi, Peter Müller, Qing-Zhen Huang, Yu-Sheng Chen, Samuel M. Webb, Young S. Lee, Tyrel M. McQueen, and Daniel G. NoceraJournal of the American Chemical Society2010 132 (45), 16185-16190Structural characterization, exploiting X-ray scattering differences at elemental absorption edges, is developed to quantitatively determine crystallographic site-specific metal disorder. We apply this technique to the problem of Zn−Cu chemical disorder ...
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- Published In Issue October 05, 2005
- Received June 13, 2005
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