Jammed Spin Liquid in the Bond-Disordered Kagome Antiferromagnet

Thomas Bilitewski, Mike E. Zhitomirsky, and Roderich Moessner
Phys. Rev. Lett. 119, 247201 – Published 11 December 2017
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Abstract

We study a class of continuous spin models with bond disorder including the kagome Heisenberg antiferromagnet. For weak disorder strength, we find discrete ground states whose number grows exponentially with system size. These states do not exhibit zero-energy excitations characteristic of highly frustrated magnets but instead are local minima of the energy landscape. This represents a spin liquid version of the phenomenon of jamming familiar from granular media and structural glasses. Correlations of this jammed spin liquid, which upon increasing the disorder strength gives way to a conventional spin glass, may be algebraic (Coulomb type) or exponential.

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  • Received 13 June 2017

DOI:https://doi.org/10.1103/PhysRevLett.119.247201

© 2017 American Physical Society

Physics Subject Headings (PhySH)

Condensed Matter, Materials & Applied PhysicsStatistical Physics & Thermodynamics

Authors & Affiliations

Thomas Bilitewski1, Mike E. Zhitomirsky2, and Roderich Moessner1

  • 1Max-Planck-Institut für Physik komplexer Systeme, Nöthnitzer Straße 38, 01187 Dresden, Germany
  • 2Universite Grenoble Alpes, CEA, INAC-Pheliqs, 38000 Grenoble, France

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Issue

Vol. 119, Iss. 24 — 15 December 2017

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