NOTICE: Due to a lapse in annual appropriations, most of this website is not being updated. Learn more.

Form submissions will still be accepted but will not receive responses at this time. Sections of this site for programs using non-appropriated funds (such as NVLAP) or those that are excepted from the shutdown (such as CHIPS and NVD) will continue to be updated.

U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

PUBLICATIONS

(001) FePt Graded Media with PtMn Underlayers

Published

Author(s)

Chao-Chien Chiang, Wu-Chang Tsai, Liang-Wei Wang, Hao-Cheng Hou, Jung-Wei Liao, Hong-Ji Lin, Fan-Hsiu Chang, Brian Kirby, Chih-Huang Lai

Abstract

(001)-oriented FePt graded media are obtained by using PtMn underlayers. The PtMn underlayer does not only behave as the (001) structural template, but provides the diffusion source of Mn. The diffusion of Mn into FePt reduces its anisotropy but, on the other hand, the exchange coupling between antiferromagnetic PtMn and ferromagnetic FePt enhances the anisotropy. Hysteresis loops taken from X-ray magnetic circular dichroism confirm the competition between these two effects leads to the lowest anisotropy in the middle of FePt.
Citation
Applied Physics Letters
Volume
99
Issue
21
Pub Type
Journals

Download Paper

Local Download

Keywords

magnetic multilayers

Citation

Chiang, C. , Tsai, W. , Wang, L. , Hou, H. , Liao, J. , Lin, H. , Chang, F. , Kirby, B. and Lai, C. (2012), (001) FePt Graded Media with PtMn Underlayers, Applied Physics Letters, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=909544 (Accessed October 10, 2025)

Issues

If you have any questions about this publication or are having problems accessing it, please contact [email protected].

Created October 31, 2012, Updated October 12, 2021
Was this page helpful?