Spin-orbit-induced magnetic anisotropy for impurities in metallic samples of reduced dimensions: Finite size dependence in the Kondo effect

O. Újsághy, A. Zawadowski, B. L. Gyorffy

Research output: Contribution to journalArticle

61 Citations (Scopus)

Abstract

We show that the conduction electron mediated interaction between a magnetic impurity and a nonmagnetic, semi-infinite host can lead to an impurity magnetic anisotropy with an easy plane parallel to the surface. Similarly, that anisotropy occurs in any mesoscopic sample. The effect is due to spinorbit coupling and can lead to the freezing out of an S = 5/2 or S = 2 spin into an Sz = 1/2 or Sz = 0 state at low temperatures. We argue that this phenomenon provides a natural explanation for the anomalous behavior of the Kondo resistivity in a number of experiments involving thin films.

Original languageEnglish
Pages (from-to)2378-2381
Number of pages4
JournalPhysical Review Letters
Volume76
Issue number13
Publication statusPublished - Mar 25 1996

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Kondo effect
orbits
impurities
anisotropy
conduction electrons
freezing
electron scattering
electrical resistivity
thin films

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Spin-orbit-induced magnetic anisotropy for impurities in metallic samples of reduced dimensions : Finite size dependence in the Kondo effect. / Újsághy, O.; Zawadowski, A.; Gyorffy, B. L.

In: Physical Review Letters, Vol. 76, No. 13, 25.03.1996, p. 2378-2381.

Research output: Contribution to journalArticle

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