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Magnetic and thermal properties of Er75Dy25 single crystals
Physical Review B
  • Mahmud Khan, Iowa State University
  • Deborah L. Schlagel, Iowa State University
  • Thomas A. Lograsso, Iowa State University
  • Karl A. Gschneidner, Jr., Iowa State University
  • Vitalij K. Pecharsky, Iowa State University
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Publication Date
We report on an experimental study of the thermal and magnetic properties of Er75Dy25 single crystals with magnetic fields applied parallel to the [0001] and [101̅ 0] directions. The [0001] direction is the easy axis of magnetization, while the [101̅ 0] direction is the hard axis of magnetization. Three major transitions are observed in the heat capacity, magnetization, and alternating current magnetic susceptibility data. A first-order transition is observed at ∼30 K, and two second-order transitions occur at ∼45 and ∼110 K. The H-T phase diagrams constructed from the experimental data reveal that several magnetic phases, including ferromagnetic cone, ferromagnetic fan, and c axis–modulated phases, exist in an Er75Dy25 single crystal. Both similarities and dissimilarities are observed in the H-T phase diagrams of Er75Dy25 when compared to the H-T phase diagrams of pure Er single crystals.

This article is from Physical Review B 84 (2011): 134424, doi:10.1103/PhysRevB.84.134424.

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American Physical Society
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Citation Information
Mahmud Khan, Deborah L. Schlagel, Thomas A. Lograsso, Karl A. Gschneidner, et al.. "Magnetic and thermal properties of Er75Dy25 single crystals" Physical Review B Vol. 84 Iss. 13 (2011) p. 134424
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