Tetragonal-to-cubic transformation of CoPt in post-annealed CoPt and CoPt/Au thin films

IEEE Transactions on Magnetics

Volumn 45, Issue 6, 2009, Pages 2682-2685

  Yuan, F T ^a   Huang, H W ^b   Liao, W M ^c   Chang, H W ^a   Sun, A C ^d   Hsiao, S N ^b   Chen, S K ^b   Lee, H Y ^c  

^a INSTITUTE OF PHYSICS   (Taiwan)

^b FENG CHIA UNIVERSITY   (Taiwan)

^c NATIONAL SYNCHROTRON RADIATION RESEARCH CENTER   (Taiwan)

^d NATIONAL TAIWAN UNIVERSITY   (Taiwan)

Author keywords

CoPt; Magnetic softening; Phase transformation; Thin films

Indexed keywords

ANNEALING; BINARY ALLOYS; COBALT ALLOYS; GOLD ALLOYS; GOLD METALLOGRAPHY; GRAIN GROWTH; MAGNETISM; PHASE TRANSITIONS; PLATINUM ALLOYS; SCANNING ELECTRON MICROSCOPY; TANTALUM METALLOGRAPHY; THIN FILMS;

BIAXIAL TENSILE STRESS; COPT; CUBIC TRANSFORMATION; DIFFRACTION DATA; MAGNETIC HARDENING; MAGNETIC SOFTENING; PHASE CHANGE; POST ANNEALING;

COBALT METALLOGRAPHY;

EID: 66549125684     PISSN: 00189464     EISSN: None     Source Type: Journal    
DOI: 10.1109/TMAG.2009.2018625     Document Type: Article

References (14)

1. 2," IEEE Trans. Magn., vol. 36, pp. 10-15, Jan. 2000.
2. D. J. Sellmyer, M. L. Yan, Y. Xu, and R. Skomski, "High anisotropy nanocluster films for high density perpendicular recording," IEEE Trans. Magn., vol. 41, pp. 560-565, 2005.
3. 0 ordered phase in CoPt and FePt thin films," J. Appl. Phys., vol. 86, pp. 4527-4533, 1999.
4. S. Iwata, S. Yamashita, and S. Tsunashima, "Perpendicular magnetic anisotropy and magneto-optical Kerr spectra of MBE-grown PtCo alloy films," IEEE Trans. Magn., vol. 33, pp. 3670-3672, Aug. 1997.
5. J. C. A. Huang, A. C. Hsu, Y. H. Lee, T. H. Wu, and C. H. Lee, "Influence of crystal structure on the perpendicular anisotropy of an epitaxial CoPt alloy," J. Appl. Phys., vol. 85, pp. 5977-5979, 1999.
6. 1 type Co-Pt ordered alloy films by sputter deposition," J. Appl. Phys., vol. 103, pp. 07E114-1-07E114-3, 2008.
7. T. Schrefl, J. Fidler, and H. Kronmuller, "Remaneace and coercivity in isotropic nanocrystalline permanent magnets," Phys. Rev. B, vol. 49, pp. 6100-6110, 1994.
8. E. C. Stoner and E. P. Wohlfarth, "A mechanism of magnetic hysteresis in heterogeneous alloys," Philos. Trans. R. Soc., vol. 240, pp. 599-642, 1948.
9. T. Yokota, L. Gao, S. H. Liou, M. L. Yan, and D. J. Sellmyer, "Effect of Au spacer layer on Ll0 phase ordering temperature of CoPt thin films," J. Appl. Phys. , vol. 95, pp. 7270-7272, 2004.
10. H. J. Frost, C. V. Thompson, and D. T. Walton, "Simulation of thin film grain structures: II. Abnormal grain growth," Acta. Metall., vol. 40, pp. 779-793, 1992.
11. G. C. Hadjipanayis and W. Gong, "Lorentz microscopy in melt-spunrE-Fe-B alloys," J. Magn. Magn. Mater., vol. 66, pp. 390-396, Apr. 1987.
12. 0 ordered FePt films," J . Appl. Phys ., vol. 94, pp. 5672-5677, 2003.
13. C. V. Thompson and R. Carel, "Stress and grain growth in thin films," J. Meth. Phys. Solids, vol. 44, pp. 657-673, 1996.
14. H. J. Frost, F. Spaepen, and M. F. Ashby, "A second report on tilt boundaries in hard sphere F.C.C. crystals," Scripta Metall., vol. 16, pp. 1165-1170, 1982.