Crystallisation of Spin Superlattices with Pressure and Field in the Layered Magnet SrCu<sub>2</sub>(BO<sub>3</sub>)<sub>2</sub> [electronic resource].
- Arlington, Va. : National Science Foundation (U.S.), 2016. and Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy
- Physical Description:
- Article numbers 11,956(2,016) : digital, PDF file
- Additional Creators:
- Argonne National Laboratory, National Science Foundation (U.S.), and United States. Department of Energy. Office of Scientific and Technical Information
- Restrictions on Access:
- Free-to-read Unrestricted online access
- An exact mapping between quantum spins and boson gases provides fresh approaches to the creation of quantum condensates and crystals. Our magnetization measurements on the dimerised quantum magnet SrCu<sub>2</sub>(BO<sub>3</sub>)<sub>2</sub> at cryogenic temperatures and through a quantum phase transition 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.
- Published through SciTech Connect., 06/20/2016., "128086", Nature Communications 7 ISSN 2041-1723 AM, and 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.
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