Abstract
In this chapter, a new bi-layer overcoat structure is proposed by introducing an effective adhesion interlayer of SiNx such that low ion energy C+ deposition can be employed for the growth of the carbon layer while maintaining good adhesion and high sp3C bonding. In this way, the enhanced functional properties of the ultrathin carbon-based overcoat can be achieved, whereas the low energy deposition of the carbon layer would not detrimentally affect the magnetic performance of the media.
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
References
B.K. Yen, R.L. White, R.J. Waltman, Q. Dai, D.C. Miller, A.J. Kellock, B. Marchon, P.H. Kasai, M.F. Toney, B.R. York, H. Deng, Q.F. Xiao, V. Raman, Microstructure and properties of ultrathin amorphous silicon nitride protective coating. J. Vac. Sci. Technol. A Vac. Surf. Films 21, 1895 (2003)
Z. Kovac, V.J. Novotny, Silicon nitride overcoats for thin film magnetic recording media. IEEE Trans. Magn. 27, 5070 (1991)
B.K. Yen, R.L. White, R.J. Waltman, C.M. Mate, Y. Sonobe, B. Marchon, Coverage and properties of a-SiNx hard disk overcoat. J. Appl. Phys. 93, 8704 (2003)
E. Rismani, R. Yeo, H. Mirabolghasemi, W.M. Kwek, H. Yang, C.S. Bhatia, An ultrathin multilayer TiN/SiN wear resistant coating for advanced magnetic tape drive heads. Thin Solid Films 556, 354 (2014)
F. Rose, B. Marchon, V. Rawat, D. Pocker, Q.-F. Xiao, T. Iwasaki, Ultrathin TiSiN overcoat protection layer for magnetic media. J. Vac. Sci. Technol. A 29, 051502 (2011)
F. Rose, D. Pocker, Q.-F. Xiao, V. Rawat, E. Brinkman, B. Marchon, Low surface energy and corrosion resistant ultrathin TiSiC disk overcoat. J. Appl. Phys. 113, 213513 (2013)
M. Azzi, P. Amirault, M. Paquette, J.E. Klemberg-Sapieha, L. Martinu, Corrosion performance and mechanical stability of 316L/DLC coating system: role of interlayers. Surf. Coat. Technol. 204, 3986 (2010)
R.J. Yeo, N. Dwivedi, E. Rismani, N. Satyanarayana, S. Kundu, P.S. Goohpattader, H.R. Tan, N. Srinivasan, B. Druz, S. Tripathy, C.S. Bhatia, Enhanced tribological, corrosion, and microstructural properties of an ultrathin (<2 nm) silicon nitride/carbon bilayer overcoat for high density magnetic storage. ACS Appl. Mater. Interfaces. 6, 9376 (2014)
N. Dwivedi, E. Rismani-Yazdi, R.J. Yeo, P.S. Goohpattader, N. Satyanarayana, N. Srinivasan, B. Druz, S. Tripathy, C.S. Bhatia, Probing the role of an atomically thin SiNx interlayer on the structure of ultrathin carbon films. Sci. Rep. 4, 5021 (2014)
A. Ferrari, J. Robertson, Resonant Raman spectroscopy of disordered, amorphous, and diamondlike carbon. Phys. Rev. B Condens. Matter 64, 075414 (2001)
D.S. Bethune, C.H. Klang, M.S. de Vries, G. Gorman, R. Savoy, J. Vazquez, R. Beyers, Cobalt-catalysed growth of carbon nanotubes with single-atomic-layer walls. Nature 363, 605 (1993)
A.C. Ferrari, J. Robertson, Raman spectroscopy of amorphous, nanostructured, diamond-like carbon, and nanodiamond. Philos. Trans. R. Soc. Lond. Ser. A 362, 2477 (2004)
N. Dwivedi, S. Kumar, J.D. Carey, R.K. Tripathi, H.K. Malik, M.K. Dalai, Influence of silver incorporation on the structural and electrical properties of diamond-like carbon thin films. ACS Appl. Mater. Interfaces 5, 2725 (2013)
N.W. Khun, E. Liu, G.C. Yang, W.G. Ma, S.P. Jiang, Structure and corrosion behavior of platinum/ruthenium/nitrogen doped diamondlike carbon thin films. J. Appl. Phys. 106, 013506 (2009)
C.S. Lee, T.-Y. Kim, K.R. Lee, K.H. Yoon, Nanoscale manipulation of tetrahedral amorphous carbon films. Thin Solid Films 447–448, 169 (2004)
G.A. Tritsaris, C. Mathioudakis, P.C. Kelires, E. Kaxiras, Optical and elastic properties of diamond-like carbon with metallic inclusions: a theoretical study. J. Appl. Phys. 112, 103503 (2012)
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
Copyright information
© 2017 Springer Nature Singapore Pte Ltd.
About this chapter
Cite this chapter
Yeo, R.J. (2017). Development of a Protective SiNx/C Bi-Layer Overcoat for Hard Disk Media. In: Ultrathin Carbon-Based Overcoats for Extremely High Density Magnetic Recording. Springer Theses. Springer, Singapore. https://doi.org/10.1007/978-981-10-4882-1_5
Download citation
DOI: https://doi.org/10.1007/978-981-10-4882-1_5
Published:
Publisher Name: Springer, Singapore
Print ISBN: 978-981-10-4881-4
Online ISBN: 978-981-10-4882-1
eBook Packages: Chemistry and Materials ScienceChemistry and Material Science (R0)