Magnetoelastic coupling induced magnetic anisotropy in Co 2(Fe/Mn)Si thin films

Himanshu Pandey; P. K. Rout; K. Anupam; P. C. Joshi; Z. Hossain; R. C. Budhani

doi:10.1063/1.4861777

Magnetoelastic coupling induced magnetic anisotropy in Co ₂(Fe/Mn)Si thin films

Himanshu Pandey, P. K. Rout, K. Anupam, P. C. Joshi, Z. Hossain, R. C. Budhani

Research output: Contribution to journal › Article › peer-review

Abstract

We report the influence of in-plane strain on uniaxial magnetic anisotropy of Co₂(Fe/Mn)Si [CF(M)S] films grown on SrTiO₃ (STO) and MgO by varying film thickness. The analysis of magnetic free energy functional for the films on STO showed the presence of magnetoelastic anisotropy with magnetostriction constant of 12.22 × 10^-6 for CFS and 2.02 × 10^-6 for CMS in addition to intrinsic magnetocrystalline anisotropy. Single-domain phase diagram reveals a gradual transition from in-plane to canted state with decreasing film thickness due to strain-induced tetragonal distortion. A maximum canting angle of 41.5 with respect to film plane is predicted for CFS (12 nm)/STO film.

Original language	English
Article number	022402
Journal	Applied Physics Letters
Volume	104
Issue number	2
DOIs	https://doi.org/10.1063/1.4861777
State	Published - 13 Jan 2014
Externally published	Yes

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abstract = "We report the influence of in-plane strain on uniaxial magnetic anisotropy of Co2(Fe/Mn)Si [CF(M)S] films grown on SrTiO3 (STO) and MgO by varying film thickness. The analysis of magnetic free energy functional for the films on STO showed the presence of magnetoelastic anisotropy with magnetostriction constant of 12.22 × 10-6 for CFS and 2.02 × 10-6 for CMS in addition to intrinsic magnetocrystalline anisotropy. Single-domain phase diagram reveals a gradual transition from in-plane to canted state with decreasing film thickness due to strain-induced tetragonal distortion. A maximum canting angle of 41.5 with respect to film plane is predicted for CFS (12 nm)/STO film.",

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AU - Pandey, Himanshu

AU - Rout, P. K.

AU - Anupam, K.

AU - Joshi, P. C.

AU - Hossain, Z.

AU - Budhani, R. C.

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AB - We report the influence of in-plane strain on uniaxial magnetic anisotropy of Co2(Fe/Mn)Si [CF(M)S] films grown on SrTiO3 (STO) and MgO by varying film thickness. The analysis of magnetic free energy functional for the films on STO showed the presence of magnetoelastic anisotropy with magnetostriction constant of 12.22 × 10-6 for CFS and 2.02 × 10-6 for CMS in addition to intrinsic magnetocrystalline anisotropy. Single-domain phase diagram reveals a gradual transition from in-plane to canted state with decreasing film thickness due to strain-induced tetragonal distortion. A maximum canting angle of 41.5 with respect to film plane is predicted for CFS (12 nm)/STO film.

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Magnetoelastic coupling induced magnetic anisotropy in Co ₂(Fe/Mn)Si thin films

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