Field-induced criticality in a gapped quantum magnet with bond disorder

Publication: Research - peer-reviewJournal article – Annual report year: 2012

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  • Author: Hüvonen, D., Switzerland

    Laboratory for Solid State Physics, ETH Zurich, Switzerland

  • Author: Zhao, S., Switzerland

    Laboratory for Solid State Physics, ETH Zurich, Switzerland

  • Author: Månsson, M., Switzerland

    Laboratory for Solid State Physics, ETH Zurich, Switzerland

  • Author: Yankova, T., Russian Federation

    Dept Chem, Moscow MV Lomonosov State University, Russian Federation

  • Author: Ressouche, E., France

    CEA Grenoble, INAC SPSMS MDN, France

  • Author: Niedermayer, C., Switzerland

    Neutron Scattering Lab, Paul Scherrer Inst, Switzerland

  • Author: Laver, M.

    Univ Copenhagen, Niels Bohr Inst, Nano Sci Ctr, DK-2100 Copenhagen, Denmark

  • Author: Gvasaliya, S. N., Switzerland

    Laboratory for Solid State Physics, ETH Zürich, Switzerland

  • Author: Zheludev, A., Switzerland

    Laboratory for Solid State Physics, ETH Zürich, Switzerland

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Neutron diffraction and calorimetricmeasurements are used to study the field-induced quantum phase transition in piperazinium-Cu-2( Cl1-xBrx) 6 ( x = 0, 3.5%, and 7.5%), a prototypical quantum antiferromagnet with random bonds. The critical indexes phi and beta are determined. The findings contradict some original predictions for Bose glass based on the assumption z = d, but are consistent with recent theoretical results implying z
Original languageEnglish
JournalPhysical Review B (Condensed Matter and Materials Physics)
Publication date2012
Volume85
Journal number10
Pages100410(R)
Number of pages5
ISSN1098-0121
DOIs
StatePublished
CitationsWeb of Science® Times Cited: 9
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