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Das, Avisek; Palliyan, Annarose J.; Sahoo, Ajit Kumar; Mohanty, J.; Venkataiah, G.

doi:10.1016/j.tsf.2023.139763

Cited by 4 publications

(3 citation statements)

References 38 publications

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“…The H C in the OP direction is in the range of 0:58-0:74 T, which is much larger than that of (111) the CFO thin film in the literature studies. 18,20,21,40,41 This observation can be attributed to the role of grain size in facilitating spin-rotation pinning sites, which result in an enhancement of H C . 20,42 In contrast, H C in the IP direction is much smaller than that in the OP direction and weakly varies with the increase in T S .…”

Section: Resultsmentioning

confidence: 99%

Continuous strain-mediated perpendicular magnetic anisotropy in epitaxial (111) CoFe2O4 thin films grown on LiTaO3 substrates

Wang,

Hu,

Zhang

et al. 2024

Journal of Applied Physics

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Perpendicular magnetic anisotropy (PMA) in magnetic thin films has attracted much attention due to its potential applications in spintronics devices. Here, we report the continuous strain-mediated PMA in epitaxial (111) CoFe2O4 (CFO) thin films grown on (0001) LiTaO3 substrates. A large variation in lattice strain (∼0.9%) in a continuous way is realized in the CFO thin films by changing substrate temperature during deposition due to the difference in the thermal expansion coefficient between CFO and LiTaO3. As a result, the PMA of the (111) CFO thin films can be continuously mediated by the strain with uniaxial magnetic anisotropy energy in the range of 0.12-14.69×106 erg/cm3. Furthermore, the strain as well as the consequent PMA in the (111) CFO thin films can be maintained within the thickness of 25–205 nm, which is consistent with the scenario of the magnetoelastic effect. Our results reveal that the CFO/LiTaO3 system can be regarded as an ideal platform to realize robust PMA and its continuous strain tuning in the (111) CFO thin films by virtue of strain-induced magnetic anisotropy.

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Section: Resultsmentioning

confidence: 99%

Continuous strain-mediated perpendicular magnetic anisotropy in epitaxial (111) CoFe2O4 thin films grown on LiTaO3 substrates

Wang,

Hu,

Zhang

et al. 2024

Journal of Applied Physics

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“…Thus, the 50 nm Co40Fe40Sm20 films annealed at 300 °C has a smoother surface. The Ra decreases with increased film thickness-a consequence of the minimization of compressive strain [26]. [26].…”

Section: Resultsmentioning

confidence: 99%

“…The Ra decreases with increased film thickness-a consequence of the minimization of compressive strain [26]. [26]. The surface smoothening results from the surface diffusion of volume or surface of adsorbed atoms.…”

Section: Resultsmentioning

confidence: 99%

Investigation of Sm Addition on Microstructural and Optical Properties of CoFe Thin Films

Liu,

Chang,

Chiang

et al. 2023

Materials

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CoFe-based alloys and rare earth (RE) elements are among the most studied materials in applying magnetic devices to improve soft magnetic characteristics. A series of Co40Fe40Sm20 films are deposited on a glass substrate via the sputtering technique, followed by an annealing process to investigate their effect on microstructural and optical properties of Co40Fe40Sm20 films. In this study, the increase in the thickness of Co40Fe40Sm20 films and annealing temperatures resulted in a smoother surface morphology. The 40 nm Co40Fe40Sm20 films annealed 300 °C are expected to have good wear resistance and adhesive properties due to their high values of H/E ratio and surface energy. Optical transparency also increased due to the smoother surface of the Co40Fe40Sm20 films.

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Thin film deposition of undoped and Ni-doped Cobalt ferrite on MgO (110) substrates using pulsed laser deposition technique

Lone,

Nazir,

Balal

et al. 2024

Thin Solid Films

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Structure, magnetic morphology and magnetization correlations in pulsed laser deposited CoFe2O4 (
Avisek Das
¹
,
Annarose J. Palliyan
²
,
Ajit Kumar Sahoo
³

et al.

Cited by 4 publications

References 38 publications

Continuous strain-mediated perpendicular magnetic anisotropy in epitaxial (111) CoFe2O4 thin films grown on LiTaO3 substrates

Continuous strain-mediated perpendicular magnetic anisotropy in epitaxial (111) CoFe2O4 thin films grown on LiTaO3 substrates

Investigation of Sm Addition on Microstructural and Optical Properties of CoFe Thin Films

Thin film deposition of undoped and Ni-doped Cobalt ferrite on MgO (110) substrates using pulsed laser deposition technique

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Structure, magnetic morphology and magnetization correlations in pulsed laser deposited CoFe2O4 (Avisek Das1, Annarose J. Palliyan2, Ajit Kumar Sahoo3 et al.

Cited by 4 publications

References 38 publications

Continuous strain-mediated perpendicular magnetic anisotropy in epitaxial (111) CoFe2O4 thin films grown on LiTaO3 substrates

Continuous strain-mediated perpendicular magnetic anisotropy in epitaxial (111) CoFe2O4 thin films grown on LiTaO3 substrates

Investigation of Sm Addition on Microstructural and Optical Properties of CoFe Thin Films

Thin film deposition of undoped and Ni-doped Cobalt ferrite on MgO (110) substrates using pulsed laser deposition technique

Contact Info

Product

Resources

About

Structure, magnetic morphology and magnetization correlations in pulsed laser deposited CoFe2O4 (
Avisek Das
¹
,
Annarose J. Palliyan
²
,
Ajit Kumar Sahoo
³

et al.