Different mechanisms of spin reorientation in exchange coupled double rare earth-transition metal layers with in-plane and perpendicular magnetic anisotropy

Evangelos Stavrou, Rachid Sbiaa, Takao Suzuki, Klaus Roell

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

The objective of this article is to clarify the spin reorientation effects in exchange coupled layers based on rare earth and transition metals with in-plane and perpendicular anisotropy. These systems are proposed for high density magneto-optical recording with super resolution readout. Two mechanisms are found to be responsible for this change of the magnetization direction with the temperature. The first mechanism is an intrinsic spin reorientation in the GdFeCo layer and the second is the exchange coupling force between the perpendicularly magnetized TbFeCo film and the in-plane GdFeCo film. With appropriate adjustment of the compensation temperatures and the thicknesses of the films, it is possible that the one or the other mechanism dominates. The experimental results are in agreement with a numerical calculation of the magnetization profiles in the coupled system.

Original languageEnglish
Pages (from-to)6893-6895
Number of pages3
JournalJournal of Applied Physics
Volume87
Issue number9 III
Publication statusPublished - May 1 2000

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retraining
rare earth elements
transition metals
anisotropy
magnetization
temperature compensation
readout
adjusting
recording
profiles
metals
temperature

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Physics and Astronomy (miscellaneous)

Cite this

Different mechanisms of spin reorientation in exchange coupled double rare earth-transition metal layers with in-plane and perpendicular magnetic anisotropy. / Stavrou, Evangelos; Sbiaa, Rachid; Suzuki, Takao; Roell, Klaus.

In: Journal of Applied Physics, Vol. 87, No. 9 III, 01.05.2000, p. 6893-6895.

Research output: Contribution to journalArticle

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