Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/13013
Title: FePt perpendicular recording media: The structural and magnetic properties by layer engineering and processing
Authors: LIM BOON CHOW
Keywords: FePt, MgO, perpendicular media, buffer layer, interfacial effect, underlayer
Issue Date: 20-Feb-2008
Source: LIM BOON CHOW (2008-02-20). FePt perpendicular recording media: The structural and magnetic properties by layer engineering and processing. ScholarBank@NUS Repository.
Abstract: This thesis is focused on the development of iron-platinum (FePt) magnetic thin film for perpendicular recording media. For such application, FePt needs to fulfill the following requirements: (1) being fct structured; (2) reduced phase transformation temperature from fcc to fct; (3) magnetic easy axis, FePt [001] in the out-of-plane direction; (4) small film thickness and (5) magnetically isolated grains. Lattice strain induced ordering by CrRu (200) textured underlayer was used to obtain fct-FePt with perpendicular anisotropy at reduced ordering temperature of 350<sup>o</sup>C. Small FePt thickness was required for higher write efficiency. However, an initial growth layer which did not contribute to the magnetic signal was formed during the FePt film growth. Pt buffer layer was used reduce the initial growth layer thickness. MgO was also proposed as a buffer layer due to its immiscible nature. To obtain magnetically isolated FePt grains, B was doped into FePt.
URI: http://scholarbank.nus.edu.sg/handle/10635/13013
Appears in Collections:Master's Theses (Open)

Show full item record
Files in This Item:
File Description SizeFormatAccess SettingsVersion 
LIMBC.pdf4.14 MBAdobe PDF

OPEN

NoneView/Download

Page view(s)

314
checked on Dec 11, 2017

Download(s)

276
checked on Dec 11, 2017

Google ScholarTM

Check


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.