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Title: Thermodynamics of spin ice in staggered and direct (along the [111] axis) fields in the cluster approximation

Abstract

We have analyzed the low-temperature thermodynamic properties of spin ice in the staggered and direct (acting along the [111] axis) fields for rare-earth oxides with the chalcolamprite structure and general formula Re{sub 2}{sup 3+}Me{sub 2}{sup 4+}O{sub 7}{sup 2-}. Calculations have been performed in the cluster approximation. The results have been compared with experimental temperature dependences of heat capacity and entropy for Dy{sub 2}Ti{sub 2}O{sub 7} compound for different values of the external field in the [111] direction. The experimental data and calculated results have also been compared for the Pr{sub 2}Ru{sub 2}O{sub 7} compound with the antiferromagnetic ordering of magnetic moments of ruthenium ions, which gives rise to the staggered field acting on the system of rare-earth ions. The calculated temperature dependences of heat capacity and entropy are in good agreement with experimental data.

Authors:
;  [1]
  1. Russian Academy of Sciences, Kirensky Institute of Physics, Siberian Branch (Russian Federation)
Publication Date:
OSTI Identifier:
22617065
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Experimental and Theoretical Physics; Journal Volume: 124; Journal Issue: 2; Other Information: Copyright (c) 2017 Pleiades Publishing, Inc.; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; ANTIFERROMAGNETISM; APPROXIMATIONS; COMPARATIVE EVALUATIONS; DYSPROSIUM COMPOUNDS; ENTROPY; HEAT; MAGNETIC MOMENTS; OXIDES; OXYGEN COMPOUNDS; PRASEODYMIUM COMPOUNDS; RARE EARTH COMPOUNDS; RUTHENIUM; RUTHENIUM COMPOUNDS; RUTHENIUM IONS; SPECIFIC HEAT; SPIN; TEMPERATURE DEPENDENCE; THERMODYNAMICS; TITANATES

Citation Formats

Zinenko, V. I., E-mail: zvi@iph.krasn.ru, and Pavlovskii, M. S.. Thermodynamics of spin ice in staggered and direct (along the [111] axis) fields in the cluster approximation. United States: N. p., 2017. Web. doi:10.1134/S1063776117020182.
Zinenko, V. I., E-mail: zvi@iph.krasn.ru, & Pavlovskii, M. S.. Thermodynamics of spin ice in staggered and direct (along the [111] axis) fields in the cluster approximation. United States. doi:10.1134/S1063776117020182.
Zinenko, V. I., E-mail: zvi@iph.krasn.ru, and Pavlovskii, M. S.. Wed . "Thermodynamics of spin ice in staggered and direct (along the [111] axis) fields in the cluster approximation". United States. doi:10.1134/S1063776117020182.
@article{osti_22617065,
title = {Thermodynamics of spin ice in staggered and direct (along the [111] axis) fields in the cluster approximation},
author = {Zinenko, V. I., E-mail: zvi@iph.krasn.ru and Pavlovskii, M. S.},
abstractNote = {We have analyzed the low-temperature thermodynamic properties of spin ice in the staggered and direct (acting along the [111] axis) fields for rare-earth oxides with the chalcolamprite structure and general formula Re{sub 2}{sup 3+}Me{sub 2}{sup 4+}O{sub 7}{sup 2-}. Calculations have been performed in the cluster approximation. The results have been compared with experimental temperature dependences of heat capacity and entropy for Dy{sub 2}Ti{sub 2}O{sub 7} compound for different values of the external field in the [111] direction. The experimental data and calculated results have also been compared for the Pr{sub 2}Ru{sub 2}O{sub 7} compound with the antiferromagnetic ordering of magnetic moments of ruthenium ions, which gives rise to the staggered field acting on the system of rare-earth ions. The calculated temperature dependences of heat capacity and entropy are in good agreement with experimental data.},
doi = {10.1134/S1063776117020182},
journal = {Journal of Experimental and Theoretical Physics},
number = 2,
volume = 124,
place = {United States},
year = {Wed Feb 15 00:00:00 EST 2017},
month = {Wed Feb 15 00:00:00 EST 2017}
}
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