Giant-magnetic clusters and susceptibility enhancement in Pd-Ni alloys

Phys. Rev. Lett. 67, 366 – Published 15 July 1991
Nicholas Kioussis and James W. Garland

Abstract

A recently developed formalism is used to calculate the saturation magnetization and temperature-dependent, exchange-enhanced Pauli susceptibility of paramagnetic and weakly ferromagnetic Pd-Ni alloys. The effects of quantum and thermal spin fluctuations are included in alloy calculations for the first time, through the use of a semiphenomenological theory consistent with the results of renormalization-group theory for the single-impurity problem. Two different cluster methods are used, both of which yield results superior to those of all previous theories and in good agreement with experiment.

DOI: http://dx.doi.org/10.1103/PhysRevLett.67.366

  • Received 4 April 1991
  • Published in the issue dated 15 July 1991

© 1991 The American Physical Society

Authors & Affiliations

Nicholas Kioussis

  • Department of Physics, California State University, Northridge, Northridge, California 91330

James W. Garland

  • Department of Physics, University of Illinois at Chicago, Chicago, Illinois 60680

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