مرکز منطقه ای اطلاع رساني علوم و فناوري - Thermal Stability of FePt-Based Exchange Coupled Composite Films

DocumentCode :

40084

Title :

Thermal Stability of FePt-Based Exchange Coupled Composite Films

Author :

Honghua Guo ; Haigang Chu ; Jialin Liao ; Bin Ma ; Zongzhi Zhang ; Qingyuan Jin

Author_Institution :

Dept. of Opt. Sci. & Eng., Fudan Univ., Shanghai, China

Volume :

Issue :

fYear :

2013

fDate :

Jul-13

Firstpage :

3683

Lastpage :

3686

Abstract :

Three series of L1₀-FePt based exchange coupled composite (ECC) films L1₀-FePt/Fe, L1₀-FePt/[Co/Ni]_N and L1₀-FePt/[Co/Pt]_N, with different magnetization configurations, on MgO substrates are studied. Though all series of samples show similar dependences of coercivity on the soft layer thickness, their thermal stabilities are much different. The perpendicular ECC film of L1₀-FePt/[Co/Ni]_N shows a higher thermal stability than that of in-plane one of L1₀-FePt/Fe for all the soft layer thicknesses.

Keywords :

cobalt; cobalt alloys; coercive force; exchange interactions (electron); iron; iron alloys; magnetic epitaxial layers; nanocomposites; nanofabrication; nanomagnetics; nickel alloys; perpendicular magnetic anisotropy; platinum; platinum alloys; soft magnetic materials; thermal stability; FePt-Co-Pt; FePt-CoNi; FePt-Fe; MgO; coercivity; epitaxial relation; exchange coupled composite films; magnesium oxide substrates; magnetization; nanometer thicknesses; perpendicular magnetocrystalline anisotropy; soft layer thickness; thermal stability; Coercive force; Energy barrier; Iron; Magnetic anisotropy; Magnetic hysteresis; Magnetization; Thermal stability; Exchange coupled composite (ECC); FePt; thermal stability;

fLanguage :

English

Journal_Title :

Magnetics, IEEE Transactions on

Publisher :

ieee

ISSN :

0018-9464

Type :

jour

DOI :

10.1109/TMAG.2013.2242436

Filename :

6559092

Link To Document :

https://search.ricest.ac.ir/dl/search/defaultta.aspx?DTC=49&DC=40084