Magnetic anisotropy and microscopy studies in magnetostrictive Tb-(Fe,Co) thin films

Umadevi, K and Talapatra, A and Arout Chelvane, J and Palit, M and Mohanty, Jyoti Ranjan and Jayalakshmi, V (2017) Magnetic anisotropy and microscopy studies in magnetostrictive Tb-(Fe,Co) thin films. Journal of Applied Physics, 122 (6). 065108. ISSN 0021-8979

Full text not available from this repository. (Request a copy)


This paper reports the effect of the film thickness on the magnetostrictive behavior of (Fe,Co) rich Tb-(Fe,Co) films grown on Si ⟨100⟩ by electron beam evaporation. Magnetostriction was found to decrease with an increase in film thicknesses. To understand the variation of magnetostriction with the film thickness, detailed structural, microstructural, magnetization, and magnetic microscopy studies were carried out. X-ray diffraction studies indicated the presence of two phases, viz., Tb2 (Fe, Co)17 and Fe-Co phases, for all the films. With the increase in the film thickness, the peak intensity of the Tb2 (Fe, Co)17 phase decreased and that of the Fe-Co phase increased. Magnetization studies showed the presence of strong in-plane anisotropy for all the films. In addition to this, the presence of the out-of-plane component of magnetization was also observed for the films grown with higher thicknesses. This anisotropic behavior was also validated through magnetic microscopy studies carried out along the in-plane and out-of-plane directions employing magneto-optic Kerr microscopy and magnetic force microscopy, respectively. The decrease in magnetostriction was explained on the basis of dual phase formation and complex interplay between the in-plane and out-of-plane magnetic anisotropies present in the film.

[error in script]
IITH Creators:
IITH CreatorsORCiD
Mohanty, Jyoti RanjanUNSPECIFIED
Item Type: Article
Subjects: Physics > Magnetism
Divisions: Department of Physics
Depositing User: Team Library
Date Deposited: 18 Aug 2017 08:47
Last Modified: 10 Nov 2017 05:14
Publisher URL:
OA policy:
Related URLs:

Actions (login required)

View Item View Item
Statistics for RAIITH ePrint 3486 Statistics for this ePrint Item