Thermal stability of Co90Pt10 islands with relief-structured samples

Yukio Nozaki, S. Nagayasu, S. Ishii, K. Matsuyama

Research output: Contribution to journalArticle

Abstract

Thermal stability of submicron scale Co90Pt10 island has been investigated using relief-structured giant magnetoresistive samples. Elongated islands with the lateral dimension of 0.5 μm × 2.0 μm and the thickness of 6 nm show nonlinear increase of the coercive field with decreasing temperature. The evaluated energy barrier becomes larger than 80kBT for the thickness ranging from 6 to 18 nm.

Original languageEnglish
JournalJournal of Magnetism and Magnetic Materials
Volume272-276
Issue numberSUPPL. 1
DOIs
Publication statusPublished - 2004 May
Externally publishedYes

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Energy barriers
Thermodynamic stability
thermal stability
Temperature
temperature
energy

Keywords

  • CoPt
  • Giant magnetoresistance
  • Magnetic random access memory
  • Thermal relaxation

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Thermal stability of Co90Pt10 islands with relief-structured samples. / Nozaki, Yukio; Nagayasu, S.; Ishii, S.; Matsuyama, K.

In: Journal of Magnetism and Magnetic Materials, Vol. 272-276, No. SUPPL. 1, 05.2004.

Research output: Contribution to journalArticle

Nozaki, Yukio ; Nagayasu, S. ; Ishii, S. ; Matsuyama, K. / Thermal stability of Co90Pt10 islands with relief-structured samples. In: Journal of Magnetism and Magnetic Materials. 2004 ; Vol. 272-276, No. SUPPL. 1.
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