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Title: Disordered Route to the Coulomb Quantum Spin Liquid: Random Transverse Fields on Spin Ice in Pr 2 Zr 2 O 7

Journal Article · · Physical Review Letters
 [1];  [2];  [3];  [4];  [5];  [6];  [7];  [8];  [8];  [8];  [9]
  1. Johns Hopkins Univ., Baltimore, MD (United States). Inst. for Quantum Matter and Dept. of Physics and Astronomy; Stanford Univ., CA (United States). Dept. of Applied Physics; SLAC National Accelerator Lab., Menlo Park, CA (United States). Stanford Inst. for Materials and Energy Sciences
  2. Johns Hopkins Univ., Baltimore, MD (United States). Inst. for Quantum Matter and Dept. of Physics and Astronomy
  3. Johns Hopkins Univ., Baltimore, MD (United States). Inst. for Quantum Matter and Dept. of Physics and Astronomy; National Inst. of Standards and Technology (NIST), Gaithersburg, MD (United States). NIST Center for Neutron Research
  4. Johns Hopkins Univ., Baltimore, MD (United States). Dept. of Chemistry
  5. Johns Hopkins Univ., Baltimore, MD (United States). Inst. for Quantum Matter and Dept. of Physics and Astronomy and Dept. of Chemistry and Dept. of Materials Science and Engineering
  6. Univ. of Tokyo (Japan). Inst. for Solid State Physics (ISSP); Osaka Univ. (Japan). Division of Materials Physics
  7. Univ. of Tokyo (Japan). Inst. for Solid State Physics (ISSP); Japan Science and Technology Agency (JST), Saitama (Japan). CREST
  8. National Inst. of Standards and Technology (NIST), Gaithersburg, MD (United States). NIST Center for Neutron Research
  9. Johns Hopkins Univ., Baltimore, MD (United States). Inst. for Quantum Matter and Dept. of Physics and Astronomy and Dept. of Materials Science and Engineering; National Inst. of Standards and Technology (NIST), Gaithersburg, MD (United States). NIST Center for Neutron Research

Inelastic neutron scattering reveals a broad continuum of excitations in Pr 2 Zr 2 O 7 , the temperature and magnetic field dependence of which indicate a continuous distribution of quenched transverse fields ( Δ ) acting on the non-Kramers Pr 3 + crystal field ground state doublets. Spin-ice correlations are apparent within 0.2 meV of the Zeeman energy. In a random phase approximation an excellent account of the data is provided and contains a transverse field distribution ρ ( Δ ) ∝ ( Δ 2 + Γ 2 ) - 1 , where Γ = 0.27 ( 1 ) meV . Established during high temperature synthesis due to an underlying structural instability, it appears disorder in Pr 2 Zr 2 O 7 actually induces a quantum spin liquid.

Research Organization:
SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES); National Science Foundation (NSF); Japan Science and Technology Agency; Japanese Society for the Promotion of Science
Grant/Contract Number:
FG02-08ER46544; AC02-76SF00515; 16H02209; 15H05882; 15H05883; DMR-1508249; R2604
OSTI ID:
1352645
Alternate ID(s):
OSTI ID: 1346272
Journal Information:
Physical Review Letters, Vol. 118, Issue 10; ISSN 0031-9007
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 72 works
Citation information provided by
Web of Science

References (22)

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Inhomogeneous Level Splitting in Pr 2 x Bi x Ru 2 O 7 journal May 2005
Antiferroquadrupolar correlations in the quantum spin ice candidate Pr 2 Zr 2 O 7 journal October 2016
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Quantum spin ice: a search for gapless quantum spin liquids in pyrochlore magnets journal May 2014
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Tetragonal distortion yielding a two-singlet spin liquid in pyrochlore Tb 2 Ti 2 O 7 journal November 2011
Quantum fluctuations in spin-ice-like Pr2Zr2O7 journal June 2013
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Quantum Excitations in Quantum Spin Ice journal October 2011
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Thermodynamic and single-ion properties of Tb3+ within the collective paramagnetic-spin liquid state of the frustrated pyrochlore antiferromagnet Tb2Ti2O7 journal September 2000
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Synthesis, floating zone crystal growth and characterization of the quantum spin ice Pr2Zr2O7 pyrochlore journal September 2014
Pressure and Field Induced Magnetic Order in the Spin Liquid T b 2 T i 2 O 7 as Studied by Single Crystal Neutron Diffraction journal October 2004
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Cited By (14)

Magnetization of Crystalline and Amorphous Phases of R2Ti2O7 and R2Zr2O7 (R = Gd, Dy, Tb) journal January 2020
Universal geometric frustration in pyrochlores journal July 2018
Role of defects in determining the magnetic ground state of ytterbium titanate journal February 2019
Experimental signatures of emergent quantum electrodynamics in Pr2Hf2O7 journal April 2018
Tuning the interactions in the spin-ice materials Dy 2 Ge 2 x Si x O 7 by silicon substitution journal August 2019
Local entanglement and confinement transitions in the random transverse-field Ising model on the pyrochlore lattice journal October 2019
Crystal fields and magnetic structure of the Ising antiferromagnet Er 3 Ga 5 O 12 journal November 2019
Absence of spin-ice state in the disordered fluorite D y 2 Z r 2 O 7 journal June 2019
Neutron scattering measurement of crystalline-electric fields in magnesium rare-earth selenide spinels journal November 2019
Topological thermal Hall effect of magnetic monopoles in the pyrochlore U(1) spin liquid journal January 2020
Competing Spin Liquids and Hidden Spin-Nematic Order in Spin Ice with Frustrated Transverse Exchange journal December 2017
Role of defects in determining the magnetic ground state of ytterbium titanate. text January 2019
Disorder and Quantum spin ice preprint January 2017
A neutron scattering measurement of crystalline-electric fields in magnesium rare-earth selenide spinels text January 2019

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