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Crystallization of spin superlattices with pressure and field in the layered magnet SrCu2(BO3)2

Author

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  • S. Haravifard

    (Duke University
    The University of Chicago
    Advanced Photon Source, Argonne National Laboratory)

  • D. Graf

    (Florida State University)

  • A. E. Feiguin

    (Northeastern University)

  • C. D. Batista

    (University of Tennessee
    Oak Ridge National Laboratory
    Los Alamos National Laboratory)

  • J. C. Lang

    (Advanced Photon Source, Argonne National Laboratory)

  • D. M. Silevitch

    (The University of Chicago
    Mathematics & Astronomy, California Institute of Technology)

  • G. Srajer

    (Advanced Photon Source, Argonne National Laboratory)

  • B. D. Gaulin

    (McMaster University)

  • H. A. Dabkowska

    (McMaster University)

  • T. F. Rosenbaum

    (The University of Chicago
    Mathematics & Astronomy, California Institute of Technology)

Abstract

An exact mapping between quantum spins and boson gases provides fresh approaches to the creation of quantum condensates and crystals. Here we report on magnetization measurements on the dimerized quantum magnet SrCu2(BO3)2 at cryogenic temperatures and through a quantum-phase transition that demonstrate the emergence of fractionally filled bosonic crystals in mesoscopic patterns, specified by a sequence of magnetization plateaus. We apply tens of Teslas of magnetic field to tune the density of bosons and gigapascals of hydrostatic pressure to regulate the underlying interactions. Simulations help parse the balance between energy and geometry in the emergent spin superlattices. The magnetic crystallites are the end result of a progression from a direct product of singlet states in each short dimer at zero field to preferred filling fractions of spin-triplet bosons in each dimer at large magnetic field, enriching the known possibilities for collective states in both quantum spin and atomic systems.

Suggested Citation

  • S. Haravifard & D. Graf & A. E. Feiguin & C. D. Batista & J. C. Lang & D. M. Silevitch & G. Srajer & B. D. Gaulin & H. A. Dabkowska & T. F. Rosenbaum, 2016. "Crystallization of spin superlattices with pressure and field in the layered magnet SrCu2(BO3)2," Nature Communications, Nature, vol. 7(1), pages 1-6, September.
    • Handle: RePEc:nat:natcom:v:7:y:2016:i:1:d:10.1038_ncomms11956
    DOI: 10.1038/ncomms11956
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    Cited by:

    1. T. Nomura & P. Corboz & A. Miyata & S. Zherlitsyn & Y. Ishii & Y. Kohama & Y. H. Matsuda & A. Ikeda & C. Zhong & H. Kageyama & F. Mila, 2023. "Unveiling new quantum phases in the Shastry-Sutherland compound SrCu2(BO3)2 up to the saturation magnetic field," Nature Communications, Nature, vol. 14(1), pages 1-7, December.

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