Hydrogenic states of monopoles in diluted quantum spin ice

Olga Petrova, Roderich Moessner, S. L. Sondhi

Research output: Contribution to journalArticle

14 Scopus citations

Abstract

We consider the effect of adding quantum dynamics to a classical topological spin liquid, with a particular view of how to best detect its presence in experiment. For the Coulomb phase of spin ice, we find quantum effects to be most visible in the gauge-charged monopole excitations. In the presence of weak dilution with nonmagnetic ions we find a particularly crisp phenomenon, namely, the emergence of hydrogenic excited states in which a magnetic monopole is bound to a vacancy at various distances. Via a mapping to an analytically tractable single particle problem on the Bethe lattice, we obtain an approximate expression for the dynamic neutron scattering structure factor.

Original languageEnglish (US)
Article number100401
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume92
Issue number10
DOIs
StatePublished - Sep 1 2015

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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