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Tuning the S=1/2 square-lattice antiferromagnet S r2Cu(T e1-x Wx) O6 from Néel order to quantum disorder to columnar order

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dc.contributor Aalto-yliopisto fi
dc.contributor Aalto University en
dc.contributor.author Mustonen, O.
dc.contributor.author Vasala, S.
dc.contributor.author Schmidt, K. P.
dc.contributor.author Sadrollahi, E.
dc.contributor.author Walker, H. C.
dc.contributor.author Terasaki, I.
dc.contributor.author Litterst, F. J.
dc.contributor.author Baggio-Saitovitch, E.
dc.contributor.author Karppinen, M.
dc.date.accessioned 2018-11-09T13:07:35Z
dc.date.available 2018-11-09T13:07:35Z
dc.date.issued 2018-08-13
dc.identifier.citation Mustonen , O , Vasala , S , Schmidt , K P , Sadrollahi , E , Walker , H C , Terasaki , I , Litterst , F J , Baggio-Saitovitch , E & Karppinen , M 2018 , ' Tuning the S=1/2 square-lattice antiferromagnet S r2Cu(T e1-x Wx) O6 from Néel order to quantum disorder to columnar order ' , Physical Review B , vol. 98 , no. 6 , 064411 . https://doi.org/10.1103/PhysRevB.98.064411 en
dc.identifier.issn 2469-9950
dc.identifier.issn 2469-9969
dc.identifier.other PURE UUID: b21ade21-4214-4476-a670-e12528e22e49
dc.identifier.other PURE ITEMURL: https://research.aalto.fi/en/publications/b21ade21-4214-4476-a670-e12528e22e49
dc.identifier.other PURE LINK: http://www.scopus.com/inward/record.url?scp=85051779337&partnerID=8YFLogxK
dc.identifier.other PURE FILEURL: https://research.aalto.fi/files/29253403/PhysRevB.98.064411.pdf
dc.identifier.uri https://aaltodoc.aalto.fi/handle/123456789/34638
dc.description.abstract The spin-1/2 square-lattice Heisenberg model is predicted to have a quantum disordered ground state when magnetic frustration is maximized by competing nearest-neighbor J1 and next-nearest-neighbor J2 interactions (J2/J1≈0.5). The double perovskites Sr2CuTeO6 and Sr2CuWO6 are isostructural spin-1/2 square-lattice antiferromagnets with Néel (J1 dominates) and columnar (J2 dominates) magnetic order, respectively. Here we characterize the full isostructural solid-solution series Sr2Cu(Te1-xWx)O6(0≤x≤1) tunable from Néel order to quantum disorder to columnar order. A spin-liquid-like ground state was previously observed for the x=0.5 phase, but we show that the magnetic order is suppressed below 1.5 K in a much wider region of x≈0.1-0.6. This coincides with significant T-linear terms in the low-temperature specific heat. However, density-functional theory calculations predict most of the materials are not in the highly frustrated J2/J1≈0.5 region square-lattice Heisenberg model. Thus, a combination of both magnetic frustration and quenched disorder is the likely origin of the spin-liquid-like state in x=0.5. en
dc.format.mimetype application/pdf
dc.language.iso en en
dc.relation.ispartofseries Physical Review B en
dc.relation.ispartofseries Volume 98, issue 6 en
dc.rights openAccess en
dc.title Tuning the S=1/2 square-lattice antiferromagnet S r2Cu(T e1-x Wx) O6 from Néel order to quantum disorder to columnar order en
dc.type A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä fi
dc.description.version Peer reviewed en
dc.contributor.department Department of Chemistry and Materials Science
dc.contributor.department Centro Brasileiro de Pesquisas Físicas
dc.contributor.department Technical University of Braunschweig
dc.contributor.department Rutherford Appleton Laboratory
dc.contributor.department Nagoya University
dc.identifier.urn URN:NBN:fi:aalto-201811095679
dc.identifier.doi 10.1103/PhysRevB.98.064411
dc.type.version publishedVersion

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