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Some Magnetization Studies at High Hydrostatic Pressures

  • R. P. Guertin

Abstract

Magnetization measurements in hydrostatic pressures, P, to ≃ 10 kbar are presented for several magnetically ordered rare earth intermetallic systems. The details of the experimental techniques are discussed. For an induced ferromagnet, Pr3T1, the Curie temperature and the zero field saturation moment are both reduced to zero for P ≳ 8 kbar. The results are compared with a molecular field model which takes into account the tetragonal symmetry experienced by the magnetic Pr ions. The pressure dependence is presented of the Neel temperature, TN, for several RSb antiferromagnets; R = Nd, Gd, Tb, Dy, Bo and Er. Also discussed is the effect of pressure on spin reorientation fields for R = Dy, Ho and Er. For DySb the effect is large and consistent with the behavior of TN under pressure.

Keywords

Pressure Dependence High Hydrostatic Pressure Magnetization Study Collective Excitation Molecular Field 
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Copyright information

© Plenum Press, New York 1978

Authors and Affiliations

  • R. P. Guertin
    • 1
  1. 1.Physics DepartmentTufts UniversityMedfordUSA

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