Grain topography in perpendicular thin-film media and impact of possible surface anisotropy

IEEE Transactions on Magnetics

Volumn 45, Issue 2, 2009, Pages 911-916

  Zhu, Jian Gang ^a   Yuan, Hua ^a   Park, Soyoung ^a   Nuhfer, Thomas ^b   Laughlin, David E ^a  

^a CARNEGIE MELLON UNIVERSITY   (United States)

^b CARNEGIE MELLON UNIVERSITY   (United States)

Author keywords

Perpendicular recording media; Surface anisotropy; Switching field; Thin film media

Indexed keywords

ANISOTROPY; CHROMIUM; CHROMIUM METALLOGRAPHY; COBALT; COBALT METALLOGRAPHY; ELECTRON ENERGY LOSS SPECTROSCOPY; GRAIN BOUNDARIES; HIGH RESOLUTION TRANSMISSION ELECTRON MICROSCOPY; PLATINUM; SEGREGATION (METALLOGRAPHY); SILICON COMPOUNDS; TITANIUM COMPOUNDS; TOPOGRAPHY; TRANSMISSIONS;

BOUNDARY SURFACES; GRAIN TOPOGRAPHY; MAGNETIC GRAINS; MICROMAGNETIC MODELING; PERPENDICULAR RECORDING MEDIA; SURFACE ANISOTROPY; SWITCHING FIELD; THIN FILM MEDIA;

THIN FILMS;

EID: 60449099563     PISSN: 00189464     EISSN: None     Source Type: Journal    
DOI: 10.1109/TMAG.2008.2010674     Document Type: Article

References (15)

1. K.-Z. Gao and H. N. Bertram, "Transition jitter estimations in tilted and conventional perpendicular recording media at 1 Tb/in," IEEE Trans. Magn., vol. 39. no. 2, pp. 704-709. Mar. 2003.
2. J.-G. Zhu. Y. Peng, and D. E. Laughlin. "Towards an understanding of grain-to-grain anisotropy field variation in thin film media," IEEE Trans. Magn., vol. 41, p. 543, 2005.
3. Y. Shimizu and H. N. Bertram. "Micromagnetic study of the transition parameter and position jitter in perpendicular recording," IEEE Trans. Magn., vol. 39. no. 3. pp. 1846-1850, May 2003.
4. M. Mochizuki, M. Hara, A. Nakamura, and M. Igarashi, "Write-field gradient effect on transition width in perpendicular recording media," IEEE Trans. Magn., vol. 41. no. 10. pp. 3082-3084. Oct. 2005.
5. N. C. Koon, B. T. Jonker, F. A. Volkening, J. J. Krebs, and G. A. Prinz, "Direct evidence for perpendicular spin orientations and enhanced hyperfine fields in ultrathin Fe(100) films on Ag(100)." Phys. Rev. Lett., vol. 59. p. 2463, 1987.
6. H. Fritzsche, J. Kohlhepp, and U. Gradmann, "Second- and fourthorder magnetic surface anisotropy of Co(0001)-based interfaces." J. Magn. Magn. Mater., vol. 148, pp. 154-155, 1995.
7. Y. Sonobe, D. Weller, Y. Ikeda, K. Takano, M. E. Schabes, G. Zeltzer, H. Do, B. K. Yen, and M. E. Best, "Coupled granular/continuous medium for thermally stable perpendicular magnetic recording," J. Magn. Magn. Mater., vol. 235. pp. 424-428, 2001.
8. H. Muraoka, Y. Sonobe, K. Miura, A. M. Goodman, and Y. Nakamura. "Analysis on magnetization transition of CGC perpendicular media." IEEE Trans. Magn., vol. 38. pp. 1632-1636, 2002.
9. A. M. Goodman, S. J. Greaves, Y. Sonobe, H. Muraoka, and Y. Nakamura, "Smoothing of bit transition irregularity in CGC perpendicular media," J. Appl. Phys., vol. 91, p. 8064, 2002.
10. A. M. Goodman, S. J. Greaves, Y. Sonobe, H. Muraoka, and Y. Nakamura, "Simulations of magnetic recording in coupled granular/continuous perpendicular media with random pinning sites." IEEE Trans. Magn., vol. 38, pp. 2051-2053, 2001.
11. A. J. Gubbens and O. L. Krivanek, Ultrammicroscopy, vol. 51, p. 146, 1993.
12. 2 perpendicular magnetic recording media," Microsc. Microanal., vol. 13, pp. 70-79, 2007.
13. J. Bentley, J. D. Risner, and R. Sinclair, "Composition mapping of Co-Pt-Ti-O perpendicular magnetic recording media by simultaneous EDS and EELS spectrum imaging,"Microsc. Microanal., vol. 13, 2007.
14. J. D. Risner, "High Resolution Analytical Transmission Electron Microscopy of Magnetic Recording Media," Ph.D. dissertation, Material Science and Engineering, Stanford University, Stanford, CA, Mar. 2006.
15. F. Luis et al., "Tuning the magnetic anisotropy of Co nanoparticles by metal capping," Europhys. Lett., vol. 76, pp. 142-148, 2006.