Title :
Control of the size of octahedral FePt nano-dots and their magnetic properties
Author :
Ito, H. ; Shima, T. ; Takanashi, Koki ; Takahashi, Y.K. ; Hono, K.
Author_Institution :
Inst. for Mater. Res., Tohoku Univ., Sendai, Japan
Abstract :
In this paper, the control of the size of octahedral FePt nano-dots has been performed by changing the layer thickness and their magnetic properties have also been investigated. FePt layers were alternately deposited by sputtering on MgO [001] single crystal substrates prepared by electron beam evaporation. Structural characterization was done by RHEED, XRD and TEM. Magnetization and coercivity data were gathered using a vibrating sample magnetometer equipped with a superconducting magnet.
Keywords :
X-ray diffraction; coercive force; electron beam deposition; ferromagnetic materials; iron alloys; magnetic multilayers; magnetometers; metallic superlattices; nanostructured materials; platinum alloys; reflection high energy electron diffraction; size control; sputter deposition; transmission electron microscopy; FePt-MgO; MgO [001] single crystal substrates; RHEED; TEM; XRD; coercivity; electron beam evaporation; layer thickness; magnetization; octahedral FePt nano-dots; size control; sputtering; Coercive force; Electron beams; Magnetic properties; Magnetization; Magnetometers; Size control; Sputtering; Superconducting magnets; Thickness control; X-ray scattering;
Conference_Titel :
Magnetics Conference, 2005. INTERMAG Asia 2005. Digests of the IEEE International
Print_ISBN :
0-7803-9009-1
DOI :
10.1109/INTMAG.2005.1463512
