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  Collinear order in the frustrated three-dimensional spin-1/2 antiferromagnet Li2CuW2O8

Ranjith, K. M., Nath, R., Skoulatos, M., Keller, L., Kasinathan, D., Skourski, Y., et al. (2015). Collinear order in the frustrated three-dimensional spin-1/2 antiferromagnet Li2CuW2O8. Physical Review B, 92(9): 094426, pp. 1-6. doi:10.1103/PhysRevB.92.094426.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0028-96D8-F Version Permalink: http://hdl.handle.net/21.11116/0000-0001-180D-7
Genre: Journal Article

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 Creators:
Ranjith, K. M.1, Author
Nath, R.1, Author
Skoulatos, M.1, Author
Keller, L.1, Author
Kasinathan, D.2, Author              
Skourski, Y.1, Author
Tsirlin, A. A.3, Author              
Affiliations:
1External Organizations, ou_persistent22              
2Physics of Correlated Matter, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863445              
3Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863405              

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 Abstract: Magnetic frustration in three dimensions (3D) manifests itself in the spin-1/2 insulator Li2CuW2O8. Density-functional band-structure calculations reveal a peculiar spin lattice built of triangular planes with frustrated interplane couplings. The saturation field of 29 T contrasts with the susceptibility maximum at 8.5 K and a relatively low Neel temperature T-N similar or equal to 3.9 K. Magnetic order below T-N is collinear with the propagation vector (0, 1 2,0) and an ordered moment of 0.65(4) mu(B) according to neutron diffraction data. This reduced ordered moment together with the low maximum of the magnetic specific heat (C-max/R similar or equal to 0.35) pinpoint strong magnetic frustration in 3D. Collinear magnetic order suggests that quantum fluctuations play a crucial role in this system, where a noncollinear spiral state would be stabilized classically.

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Language(s): eng - English
 Dates: 2015-09-152015-09-15
 Publication Status: Published in print
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Title: Physical Review B
  Abbreviation : Phys. Rev. B
Source Genre: Journal
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Publ. Info: Woodbury, NY : American Physical Society
Pages: - Volume / Issue: 92 (9) Sequence Number: 094426 Start / End Page: 1 - 6 Identifier: ISSN: 1098-0121
CoNE: /journals/resource/954925225008