Spin correlations in Ho2Ti2O7 : a dipolar spin ice system

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DOIResolve DOI: http://doi.org/10.1103/PhysRevLett.87.047205
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TypeArticle
Journal titlePhysical Review Letters
ISSN0031-9007
Volume87
Issue4
Pages047205–; # of pages: 4
AbstractThe pyrochlore material Ho2Ti2O7 has been suggested to show "spin ice" behavior. We present neutron scattering and specific heat results that establish unambiguously that Ho2Ti2O7 exhibits spin ice correlations at low temperature. Diffuse magnetic neutron scattering is quite well described by a nearest neighbor spin ice model and very accurately described by a dipolar spin ice model. The heat capacity is well accounted for by the sum of a dipolar spin ice contribution and an expected nuclear spin contribution, known to exist in other Ho3+ salts. These results settle the question of the nature of the low temperature spin correlations in Ho2Ti2O7 for which contradictory claims have been made.
Publication date
LanguageEnglish
AffiliationNational Research Council Canada; NRC Steacie Institute for Molecular Sciences
Peer reviewedNo
Identifier10109961
NPARC number12327479
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Record identifier26762799-4609-4d22-b76b-f96b4a5125a2
Record created2009-09-10
Record modified2016-05-09
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