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

Journal Article · · Nature Communications
DOI:https://doi.org/10.1038/ncomms11956· OSTI ID:1307424
 [1];  [2];  [3];  [4];  [5];  [6];  [5];  [7];  [7];  [6]
  1. Duke Univ., Durham, NC (United States); Univ. of Chicago, Chicago, IL (United States); Argonne National Lab. (ANL), Argonne, IL (United States)
  2. Florida State Univ., Tallahassee, FL (United States)
  3. Northeastern Univ., Boston, MA (United States)
  4. Univ. of Tennessee, Knoxville, TN (United States); Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  5. Argonne National Lab. (ANL), Argonne, IL (United States)
  6. Univ. of Chicago, Chicago, IL (United States); California Inst. of Technology (CalTech), Pasadena, CA (United States)
  7. McMaster Univ., Hamilton, ON (Canada)

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 SrCu2(BO3)2 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.

Research Organization:
Florida State Univ., Tallahassee, FL (United States); Argonne National Laboratory (ANL), Argonne, IL (United States)
Sponsoring Organization:
USDOE National Nuclear Security Administration (NNSA); National Science Foundation (NSF); USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
NA0001979; AC02-06CH11357
OSTI ID:
1307424
Alternate ID(s):
OSTI ID: 1339557
Journal Information:
Nature Communications, Vol. 7; ISSN 2041-1723
Publisher:
Nature Publishing GroupCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 31 works
Citation information provided by
Web of Science

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Cited By (13)

Ground-State Properties for Bilayer Kitaev Model: Dimer Expansion Study journal September 2018
4-spin plaquette singlet state in the Shastry–Sutherland compound SrCu2(BO3)2 journal July 2017
The nature of spin excitations in the one-third magnetization plateau phase of Ba3CoSb2O9 journal July 2018
Pressure-tuning the quantum spin Hamiltonian of the triangular lattice antiferromagnet Cs2CuCl4 journal March 2019
Emergent bound states and impurity pairs in chemically doped Shastry-Sutherland system journal June 2019
Unconventional field induced phases in a quantum magnet formed by free radical tetramers journal February 2018
Dynamics and Instabilities of the Shastry-Sutherland Model journal June 2018
Thermodynamic properties of the Shastry-Sutherland model throughout the dimer-product phase journal October 2019
Thermodynamic properties of the Shastry-Sutherland model throughout the dimer-product phase text January 2019
Dynamics and Instabilities of the Shastry-Sutherland Model text January 2018
Ground-state properties for bilayer Kitaev model: dimer expansion study text January 2018
Author Correction: The nature of spin excitations in the one-third magnetization plateau phase of Ba3CoSb2O9 journal August 2018
Pressure-tuning the quantum spin Hamiltonian of the triangular lattice antiferromagnet Cs$_2$CuCl$_4$ text January 2019