Microstructural evolution in PtMn-based spin-valves induced by heat treatment

Hyuck Soo Yang, K. I. Min, Young-geun Kim, Seong Rae Lee, Gyeong Su Park, Se Ahn Song

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Annealing time effect on the magnetotransport properties was investigated for Si/alumina/Ta/NiFe/CoFe/Cu/ CoFe/PtMn/Ta samples having different PtMn thickness (10-30 nm). Post-deposition heat treatment was performed using a vacuum furnace with 3 kOe field at 270°C up to 35 h. The thermally activated atoms diffused, to other layers through grain boundaries during the heat treatment with longer annealing hours resulting in deteriorating ΔR/R. This effect is more profound in films with thicker PtMn layers where interface became rougher after annealing.

Original languageEnglish
Pages (from-to)2070-2072
Number of pages3
JournalJournal of Magnetism and Magnetic Materials
Volume226-230
Issue numberPART II
Publication statusPublished - 2001 Dec 1

Fingerprint

Microstructural evolution
heat treatment
Heat treatment
Annealing
annealing
vacuum furnaces
Vacuum furnaces
Galvanomagnetic effects
Aluminum Oxide
Grain boundaries
Alumina
grain boundaries
aluminum oxides
Atoms
atoms

Keywords

  • Annealing
  • Giant magnetoresistance
  • Microstructure
  • Spin value

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Electronic, Optical and Magnetic Materials

Cite this

Microstructural evolution in PtMn-based spin-valves induced by heat treatment. / Yang, Hyuck Soo; Min, K. I.; Kim, Young-geun; Lee, Seong Rae; Park, Gyeong Su; Song, Se Ahn.

In: Journal of Magnetism and Magnetic Materials, Vol. 226-230, No. PART II, 01.12.2001, p. 2070-2072.

Research output: Contribution to journalArticle

Yang, HS, Min, KI, Kim, Y, Lee, SR, Park, GS & Song, SA 2001, 'Microstructural evolution in PtMn-based spin-valves induced by heat treatment', Journal of Magnetism and Magnetic Materials, vol. 226-230, no. PART II, pp. 2070-2072.
Yang, Hyuck Soo ; Min, K. I. ; Kim, Young-geun ; Lee, Seong Rae ; Park, Gyeong Su ; Song, Se Ahn. / Microstructural evolution in PtMn-based spin-valves induced by heat treatment. In: Journal of Magnetism and Magnetic Materials. 2001 ; Vol. 226-230, No. PART II. pp. 2070-2072.
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