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Effect of anisotropy on spin-wave surface magnetization in a Heisenberg ferromagnet

M. G. Pini and A. Rettori
Phys. Rev. B 41, 779 – Published 1 January 1990
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Abstract

We have studied the effect of surface single-ion anisotropy on the local magnetization at the surface of a semi-infinite Heisenberg ferromagnet in the spin-wave regime. We find that, even for values of the anisotropy-to-exchange ratio as small as 0.2, the mean spin deviation at the surface is significantly lowered. The relevance of our calculation with respect to the properties of real systems is also discussed.

  • Received 19 June 1989

DOI:https://doi.org/10.1103/PhysRevB.41.779

©1990 American Physical Society

Authors & Affiliations

M. G. Pini

  • Istituto di Elettronica Quantistica del Consiglio Nazionale delle Ricerche, 50127 Firenze, Italy

A. Rettori

  • Istituto di Fisica dell’Universita’ di Siena, 53100 Siena, Italy
  • Unita’ di Firenze del Centro Interuniversitario di Struttura della Materia-Gruppo Nazionale di Struttura della Materia, 50125 Firenze, Italy

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Vol. 41, Iss. 1 — 1 January 1990

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