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Title: Disorder-Induced Quantum Spin Liquid in Spin Ice Pyrochlores

Abstract

We propose that in a certain class of magnetic materials, known as non-Kramers “spin ice,” disorder induces quantum entanglement. Instead of driving glassy behavior, disorder provokes quantum superpositions of spins throughout the system and engenders an associated emergent gauge structure and set of fractional excitations. More precisely, disorder transforms a classical phase governed by a large entropy, classical spin ice, into a quantum spin liquid governed by entanglement. As the degree of disorder is increased, the system transitions between (i) a “regular” Coulombic spin liquid, (ii) a phase known as “Mott glass,” which contains rare gapless regions in real space, but whose behavior on long length scales is only modified quantitatively, and (iii) a true glassy phase for random distributions with large width or large mean amplitude.

Authors:
 [1];  [2]
  1. Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States). Dept. of Physics
  2. Univ. of California, Santa Barbara, CA (United States). Kavli Inst. for Theoretical Physics
Publication Date:
Research Org.:
Univ. of California, Santa Barbara, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
OSTI Identifier:
1536485
Alternate Identifier(s):
OSTI ID: 1344819
Grant/Contract Number:  
FG02-08ER46524
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review Letters
Additional Journal Information:
Journal Volume: 118; Journal Issue: 8; Journal ID: ISSN 0031-9007
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS

Citation Formats

Savary, Lucile, and Balents, Leon. Disorder-Induced Quantum Spin Liquid in Spin Ice Pyrochlores. United States: N. p., 2017. Web. doi:10.1103/physrevlett.118.087203.
Savary, Lucile, & Balents, Leon. Disorder-Induced Quantum Spin Liquid in Spin Ice Pyrochlores. United States. https://doi.org/10.1103/physrevlett.118.087203
Savary, Lucile, and Balents, Leon. Thu . "Disorder-Induced Quantum Spin Liquid in Spin Ice Pyrochlores". United States. https://doi.org/10.1103/physrevlett.118.087203. https://www.osti.gov/servlets/purl/1536485.
@article{osti_1536485,
title = {Disorder-Induced Quantum Spin Liquid in Spin Ice Pyrochlores},
author = {Savary, Lucile and Balents, Leon},
abstractNote = {We propose that in a certain class of magnetic materials, known as non-Kramers “spin ice,” disorder induces quantum entanglement. Instead of driving glassy behavior, disorder provokes quantum superpositions of spins throughout the system and engenders an associated emergent gauge structure and set of fractional excitations. More precisely, disorder transforms a classical phase governed by a large entropy, classical spin ice, into a quantum spin liquid governed by entanglement. As the degree of disorder is increased, the system transitions between (i) a “regular” Coulombic spin liquid, (ii) a phase known as “Mott glass,” which contains rare gapless regions in real space, but whose behavior on long length scales is only modified quantitatively, and (iii) a true glassy phase for random distributions with large width or large mean amplitude.},
doi = {10.1103/physrevlett.118.087203},
journal = {Physical Review Letters},
number = 8,
volume = 118,
place = {United States},
year = {Thu Feb 23 00:00:00 EST 2017},
month = {Thu Feb 23 00:00:00 EST 2017}
}

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Cited by: 80 works
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Works referencing / citing this record:

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