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2010 | 118 | 5 | 873-874
Article title

Magnetocaloric Effect in Geometrically Frustrated Magnetic Compound HoB_{12}

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Abstracts
EN
The magnetocaloric effect of frustrated antiferromagnetic HoB_{12} is calculated. The isothermal entropy change Δ S characterising the magnetocaloric effect shows a small positive change upon magnetisation below the transition temperature T_{N}, indicating a small inverse magnetocaloric effect. At T_{N}, Δ S shows clear scaling behaviour with the applied magnetic field. The adiabatic temperature change Δ T shows paramagnetic behaviour above T_{N}, despite strong magnetic correlations that persist in this temperature region. The adiabatic temperature change calculated for HoB_{12} is appreciable.
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Contributors
author
  • Physics Department, University of Johannesburg, Johannesburg, P.O. Box 524, Auckland Park, 2006, South Africa
author
  • Institute of Experimental Physics, Slovak Academy of Sciences, Watsonova 47, SK-04001 Kosice, Slovak Republic
author
  • Institute of Experimental Physics, Slovak Academy of Sciences, Watsonova 47, SK-04001 Kosice, Slovak Republic
author
  • Institute of Experimental Physics, Slovak Academy of Sciences, Watsonova 47, SK-04001 Kosice, Slovak Republic
  • I. Frantsevich Inst. for Problems of Materials Science of NASU, 3 Krzhyzhanovsky Str., UA-03680 Kiev, Ukraine
  • Helmholtz Zentrum Berlin, Glienicker Str. 100, D-14109 Berlin, Germany
author
  • Physics Department, University of Johannesburg, Johannesburg, P.O. Box 524, Auckland Park, 2006, South Africa
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bwmeta1.element.bwnjournal-article-appv118n5064kz
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