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High post-annealing stability in [Pt/Co] multilayers
- Authors
- Lee, Tae Young; Son, Dong Su; Lim, Sang Ho; Lee, Seong-Rae
- Issue Date
- 7-6월-2013
- Publisher
- AMER INST PHYSICS
- Citation
- JOURNAL OF APPLIED PHYSICS, v.113, no.21
- Indexed
- SCIE
SCOPUS
- Journal Title
- JOURNAL OF APPLIED PHYSICS
- Volume
- 113
- Number
- 21
- ISSN
- 0021-8979
- Abstract
- The [Pt/Co] multilayers with a very thin Pt layer of 0.2 nm are presented that exhibit strong perpendicular magnetic anisotropy (PMA) even after annealing up to 500 degrees C. The observed post-annealing stability is in significant contrast to that previously shown for conventional multilayers with a thicker Pt layer than Co, where good PMA properties are obtained in the as-deposited state but they deteriorate significantly at moderate annealing temperatures below similar to 300 degrees C. The reason for the high post-annealing stability is a low level of intermixing during sputtering due to the very thin Pt layer. (C) 2013 AIP Publishing LLC.
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