Kim, MJ Kim, HJ Kim, KY Jang, SH Kang, T 2024-01-21T11:09:38Z 2024-01-21T11:09:38Z 2021-09-05 2002-02 0304-8853 https://pubs.kist.re.kr/handle/201004/139829 The second annealing effect on GMR properties has been investigated for postdeposition-annealed PtMn spin valve. A sudden change in MR ratio, exchange bias field and inter-layer coupling field occurred at about 325degreesC. This annealing temperature is close to the blocking temperature for the PtMn spin valve indicating 310degreesC. It is considered that the FCT structure of PtMn layer can promote Mn diffusion through the grain boundary, leading to a sudden decrease in magnetic properties. Therefore, PtMn layer as an anti ferromagnetic material may not be suitable for the advanced head material. (C) 2002 Elsevier Science B.V, All rights reserved. English ELSEVIER SCIENCE BV The annealing effect on GMR properties of PtMn-based spin valve Article 10.1016/S0304-8853(01)00554-6 1 JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, v.239, no.1-3, pp.195 - 197 JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS 239 1-3 195 197 scie scopus 000175187300062 2-s2.0-0036466006 Materials Science, Multidisciplinary Physics, Condensed Matter Materials Science Physics Article; Proceedings Paper spin valves thermal stability second annealing treatment