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

Title: Crystallization of spin superlattices with pressure and field in the layered magnet SrCu2(BO3)2.
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Name(s): Haravifard, S, author
Graf, D, author
Feiguin, A E, author
Batista, C D, author
Lang, J C, author
Silevitch, D M, author
Srajer, G, author
Gaulin, B D, author
Dabkowska, H A, author
Rosenbaum, T F, author
Type of Resource: text
Genre: Journal Article
Text
Date Issued: 2016-06-20
Physical Form: computer
online resource
Extent: 1 online resource
Language(s): English
Abstract/Description: 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.
Identifier: FSU_pmch_27320787 (IID), 10.1038/ncomms11956 (DOI), PMC4915149 (PMCID), 27320787 (RID), 27320787 (EID), ncomms11956 (PII)
Publication Note: This NIH-funded author manuscript originally appeared in PubMed Central at https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4915149.
Persistent Link to This Record: http://purl.flvc.org/fsu/fd/FSU_pmch_27320787
Host Institution: FSU
Is Part Of: Nature communications.
2041-1723
Issue: vol. 7

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Haravifard, S., Graf, D., Feiguin, A. E., Batista, C. D., Lang, J. C., Silevitch, D. M., … Rosenbaum, T. F. (2016). Crystallization of spin superlattices with pressure and field in the layered magnet SrCu2(BO3)2. Nature Communications. Retrieved from http://purl.flvc.org/fsu/fd/FSU_pmch_27320787