Title :
Investigation of heat sink layer Ag thickness-dependent time-resolved lattice dynamics in FePt/Ag heat assisted magnetic recording media
Author :
Xu, D.B. ; Sun, C.J. ; Brewe, Dale L. ; Chen, Jim S. ; Heald, S.M. ; Chow, G.M.
Author_Institution :
Dept. of Mater. Sci. & Eng., Nat. Univ. of Singapore, Singapore, Singapore
fDate :
Oct. 31 2012-Nov. 2 2012
Abstract :
Time-resolved X-ray diffraction (TR-XRD) is employed to investigate the lattice dynamics during thermal transport in FePt/Ag heat assisted magnetic recording (HAMR) media by varying Ag heat sink layer thickness. The x-ray de-convoluted results not only show the possibility to spatiotemporally separate the electron and phonon thermal transport, but also indicate that the thickness mainly has effects on the phonon thermal transport rather than electron diffusion thermal transport.
Keywords :
thermomagnetic recording; TR XRD; electron diffusion thermal transport; electron thermal transport; heat assisted magnetic recording media; heat sink layer thickness; phonon thermal transport; time resolved X-ray diffraction; time resolved lattice dynamics; Delay; Heating; Lattices; Magnetic recording; Phonons; X-ray lasers; X-ray scattering; HAMR; Heat sink; Lattice dynamics; Time-resolved;
Conference_Titel :
APMRC, 2012 Digest
Conference_Location :
Singapore
Print_ISBN :
978-1-4673-4734-1
