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  Putative spin-nematic phase in BaCdVO(PO4)2

Skoulatos, M., Rucker, F., Nilsen, G. J., Bertin, A., Pomjakushina, E., Olliver, J., et al. (2019). Putative spin-nematic phase in BaCdVO(PO4)2. Physical Review B, 100(1): 014405, pp. 1-5. doi:10.1103/PhysRevB.100.014405.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0004-82B7-A Version Permalink: http://hdl.handle.net/21.11116/0000-0004-82B9-8
Genre: Journal Article

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 Creators:
Skoulatos, M.1, Author
Rucker, F.1, Author
Nilsen, G. J.1, Author
Bertin, A.1, Author
Pomjakushina, E.1, Author
Olliver, J.1, Author
Schneidewind, A.1, Author
Georgii, R.1, Author
Zaharko, O.1, Author
Keller, L.1, Author
Rüeegg, Ch.1, Author
Pfleiderer, C.1, Author
Schmidt, B.2, Author              
Shannon, N.1, Author
Kriele, A.1, Author
Senyshyn, A.1, Author
Smerald, A.1, Author
Affiliations:
1External Organizations, ou_persistent22              
2Burkhard Schmidt, Physics of Quantum Materials, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863464              

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 Abstract: We report neutron-scattering and ac magnetic susceptibility measurements of the two-dimensional spin-1/2 frustrated magnet BaCdVO(PO4)(2). At temperatures well below T-N approximate to 1 K, we show that only 34% of the spin moment orders in an up-up-down-down stripe structure. Dominant magnetic diffuse scattering and comparison to published muon-spin-rotation measurements indicates that the remaining 66% is fluctuating. This demonstrates the presence of strong frustration, associated with competing ferromagnetic and antiferromagnetic interactions, and points to a subtle ordering mechanism driven by magnon interactions. On applying magnetic field, we find that at T = 0.1 K the magnetic order vanishes at 3.8 T, whereas magnetic saturation is reached only above 4.5 T. We argue that the putative high-field phase is a realization of the long-sought bond-spin-nematic state.

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Language(s): eng - English
 Dates: 2019-07-022019-07-02
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Method: -
 Identifiers: DOI: 10.1103/PhysRevB.100.014405
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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: 100 (1) Sequence Number: 014405 Start / End Page: 1 - 5 Identifier: ISSN: 1098-0121
CoNE: https://pure.mpg.de/cone/journals/resource/954925225008