Microstructure and magnetic properties of FePt thin films epitaxially grown on MgO (001) substrates

2003 ◽  
Vol 267 (2) ◽  
pp. 248-255 ◽  
Author(s):  
Y.K. Takahashi ◽  
K. Hono ◽  
T. Shima ◽  
K. Takanashi
2009 ◽  
Vol 94 (17) ◽  
pp. 172512 ◽  
Author(s):  
Xiaohong Li ◽  
Fengqing Wang ◽  
Yanguo Liu ◽  
Lei Xu ◽  
Jingwei Zhao ◽  
...  

2008 ◽  
Vol 41 (23) ◽  
pp. 235003 ◽  
Author(s):  
Fujun Yang ◽  
Hao Wang ◽  
Jun Zhang ◽  
Yi Wang ◽  
Hanbin Wang ◽  
...  

2001 ◽  
Vol 89 (11) ◽  
pp. 7068-7070 ◽  
Author(s):  
Yu-Nu Hsu ◽  
Sangki Jeong ◽  
David E. Laughlin ◽  
David N. Lambeth

2007 ◽  
Vol 998 ◽  
Author(s):  
Sangho Jin ◽  
Sung Uk Jang ◽  
Soon-Ju Kwon

ABSTRACTWe have studied the effect of Ta on the structure, magnetic properties and the ordering temperature of FePt(Ta) thin films. The samples are prepared by the dc and rf magnetron cosputtering method with 3 single element targets. After a deposition, the samples are annealed in a vacuum at various temperatures. The XRD patterns show strong (111) peaks at all annealing temperatures, but the change in the d-spacings reveals a disorder-order transformation. The more Ta is added to the FePt, the larger the coercivity becomes. The coercivity of the FePtTa40W film annealed at 700°C reaches about two times as large as the value of the pure FePt film. The delta m curves imply that Ta atoms diffuse into the grain boundary to reduce inter-granular exchange coupling, which leads the enhancement of coercivity


Sign in / Sign up

Export Citation Format

Share Document