Analysis of ferromagnetic archiving media ageing by time of flight-energy elastic recoil detection analysis

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Analysis of ferromagnetic archiving media ageing by time of flight-energy elastic recoil detection analysis

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Publication Article, peer reviewed scientific
Title Analysis of ferromagnetic archiving media ageing by time of flight-energy elastic recoil detection analysis
Author(s) Whitlow, Harry J ; Zhang, Y ; Winzell, T
Date 2000
English abstract
Time of flight-energy elastic recoil detection analysis (ToF-E ERDA) has been applied to study the ageing of commercial thin film hard discs. Samples from a standard commercial removable hard disc were subjected to accelerated ageing heat treatment in normal humidity from 90°C up to 240°C in steps of 30°C for 3 h each. A test using a high humidity environment at 90°C up to 40 h was also performed. The ToF-E ERDA was carried out using a 60 MeV 127I11+ ion beam incident at 67.5° to the surface normal, and detecting recoils at 45° to the ion beam direction by measuring their time of flight and energy in a detector telescope. The magnetic thin film structure was assigned to be a CNx/Co/N-Cr/Ni-P multilayer. At temperatures higher than 180°C the CNx coating layer detoriated with an increase of surface oxygen and an N content reduction in the N-Cr layer.
DOI http://dx.doi.org/10.1016/S0168-583X(99)00688-6 (link to publisher's fulltext)
Host/Issue Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms
Volume 161-163
ISSN 0168-583X
Pages 558-562
Language eng (iso)
Subject(s) time of flight-energy elastic recoil detection
computer disc
accelerated ageing
heat treatment
CNx/Co/N-Cr/Ni-P structures
ferromagnetic thin films
Handle http://hdl.handle.net/2043/564 (link to this page)

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