Enhanced photo-thermal stability of modified PFPE lubricants under laser beam exposure

IEEE Transactions on Magnetics

Volumn 47, Issue 7, 2011, Pages 1849-1854

  Gauvin, M ^a   Zheng, H ^a   Suen, B ^a   Lee, J ^b   Kang, H J ^b   Talke, F E ^a  

^a UNIVERSITY OF CALIFORNIA   (United States)

^b Dankook University   (South Korea)

Author keywords

Hard disk drive; heat assisted magnetic recording; laser beam exposure; lubricant depletion and thin lubricant film

Indexed keywords

FRICTION; IMAGE ENHANCEMENT; LUBRICANT FILMS; MAGNETIC RECORDING; MAGNETISM; OPTICAL PROPERTIES; REFLECTION; THERMODYNAMIC STABILITY; TRIBOLOGY; WOOLEN AND WORSTED FABRICS;

FRICTION FORCE; HARD DISK DRIVE; HEAT ASSISTED MAGNETIC RECORDING; PFPE LUBRICANTS; REFLECTANCE CHANGES; SURFACE REFLECTANCE; THIN LUBRICANT FILMS; TRIBOLOGICAL PROPERTIES;

LASER BEAMS;

EID: 79959694903     PISSN: 00189464     EISSN: None     Source Type: Journal    
DOI: 10.1109/TMAG.2011.2140362     Document Type: Article

References (18)

1. W. A. Challener, C. Peng, A. V. Itagi, D. Karns, W. Peng, Y. Peng, X. Yang, X. Zhu, N. J. Gokemeijer, Y. T. Hsia, G. Ju, R. E. Rottmayer, M. A. Seigler, and E. C. Gage, "Heat-assisted magnetic recording by a near-field transducer with efficient optical energy transfer," Nature Photon., vol. 3, no. 5, pp. 220-224, 2009.
2. B. C. Stipe, T. C. Strand, C. C. Poon, H. Balamane, T. D. Boone, J. A. Katine, J.-L. Li, V. Rawat, H. Nemoto, A. Hirotsune, O. Hellwig, R. Ruiz, E. Dobisz, D. S. Kercher, N. Robertson, T. R. Albrecht, and B. D. Terris, "Magnetic recording at 1.5pb m-2 using an integrated plasmonic antenna," Nature Photon., vol. 4, pp. 484-488, 2010.
3. M. H. Kryder, E. C. Gage, T. W. McDaniel, W. A. Challener, R. E. Rottmayer,G. Ju, Y.-T. Hsia, and M. F. Erden, "Heat assisted magnetic recording," Proc. IEEE, vol. 96, no. 11, pp. 1810-1835, 2008.
4. L. Li, P. Jones, and Y.-T. Hsia, "Effect of chemical structure and molecular weight on high-temperature stability of some Fomblin z-type lubricants," Tribol. Lett., vol. 16, pp. 21-27, 2004.
5. C. Mate, Q. Dai, R. Payne, B. Knigge, and P. Baumgart, "Will the numbers add up for sub-7-nm magnetic spacings? Future metrology issues for disk drive lubricants, overcoats, and topographies," IEEE Trans. Magn., vol. 41, no. 2, pp. 626-631, 2005. (Pubitemid 40296500)
6. L. Zhu and T. Liew, "Spectral characterization of perfluoropolyethers lubricant irradiated by laser light," Appl. Surf. Sci., vol. 203-204, pp. 871-874, 2003.
7. N. Tagawa, R. Kakitani, H. Tani, N. Iketani, and I. Nakano, "Study of lubricant depletion induced by laser heating in thermally assisted magnetic recording systems; effect of lubricant film materials," IEEE Trans. Magn., vol. 45, no. 2, pp. 877-882, 2009.
8. N. Tagawa, H. Andoh, and H. Tani, "Study on lubricant depletion induced by laser heating in thermally assisted magnetic recording systems: Effect of lubricant thickness and bonding ratio," Tribol. Lett., vol. 37, no. 2, pp. 411-418, 2010.
9. J. Lee, S.-W. Chun, H.-J. Kang, and F. Talke, "The effect of UV stabilizer on the photo degradation of perfluoropolyether lubricants used in hard disk," Tribol. Lett., vol. 28, pp. 117-121, 2007.
10. H. Liu and B. Bhushan, "Nanotribological characterization of molecularly thick lubricant films for applications to MEMS/NEMS by AFM," Ultramicroscopy, vol. 97, no. 1-4, pp. 321-340, 2003. (Pubitemid 36683305)
11. D. L. Klein and G. H. Vurens, "Optical Measurement System Using Polarized Light," U.S. Patent, 6,134,011.
12. G. H. Vurens and D. L. Klein, "Composition and thickness distribution of carbon overcoat films on thin film magnetic disks studied with surface reflectance analyzers," Proc. SPIE, vol. 3619, pp. 27-34, 1999.
13. D. L. Klein and G. H. Vurens, "Measurements of thin film disks by surface reflectance analysis," Proc. SPIE, vol. 3619, pp. 18-26, 1999.
14. R. M. A. Azzam and N. M. Bashara, Ellipsometry and Polarized Light. Amsterdam, The Netherlands: North-Holland, 1989.
15. P. B. Johnson and R. W. Christy, "Optical constants of transition metals: Ti, V, Cr, Mn, Fe, Co, Ni, and Pd," Phys. Rev. B, vol. 9, no. 12, pp. 5056-5070, 1974.
16. R. W.-J. Chia, E. Li, S. Sugi, G. G. Li, H. Zhu, A. R. Forouhi, and I. Bloomer, "Optical characterization of nitrogenated carbon overcoats," Thin Solid Films, vol. 308-309, pp. 284-288, 1997. (Pubitemid 127432272)
17. H. W. Lo and A. Compaan, "Raman measurements of temperature during cw laser heating of silicon," J. Appl. Phys., vol. 51, no. 3, pp. 1565-1569, 1980.
18. M. Yamada, K. Nambu, Y. Itoh, and K. Yamamoto, "Raman microprobe study on temperature distribution during cw laser heating of silicon on sapphire," J. Appl. Phys., vol. 59, no. 4, pp. 1350-1354, 1986. (Pubitemid 17615294)