Brillouin light scattering studies of magnetic anisotropy in epitaxial Fe/GaAs films

Hicken, R. J.; Eley, D. E. P.; Gester, M.; Gray, S. J.; Daboo, C.; Ives, A. J. R.; Bland, J. A. C.

doi:10.1016/0304-8853(94)01626-7

Cited by 45 publications

(20 citation statements)

References 39 publications

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“…For the 230-Å-thick Fe film, the BLS measurements yield K uʈ (t)ϭ0.61K 1 . 25 Therefore, we can conclude that at least one additional uniaxial IPMA contribution must be present which makes the ͓110͔ direction a hard magnetization axis in the thick film limit.…”

Section: Discussionmentioning

confidence: 85%

“…25 The ␣ 1 , ␣ 2 , and ␣ 3 are the direction cosines for the direction of the magnetization with respect to each cubic axis, where ␣ 1 and ␣ 2 refer to in-plane axes, and ␣ 3 to the out-of-plane axis. The angle is the angle between the film normal and the magnetization direction.…”

Section: Discussionmentioning

confidence: 99%

“…However, from the MOKE loops shown in Fig. 1, one can see that this method will not be very accurate and instead the IPMA fields are determined ex situ using BLS for Fe films in the thickness range of 20-1200 Å 25 which were protected against oxidation with a Cr layer.…”

Section: A (001) Surfacementioning

confidence: 99%

“…2. 25 (4M ) eff is the effective demagnetizing field which contains any perpendicular surface anisotropy contributions that may exist, and K 1 and K uʈ are the cubic and in-plane uniaxial anisotropies.…”

Section: A (001) Surfacementioning

confidence: 99%

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Continuous evolution of the in-plane magnetic anisotropies with thickness in epitaxial Fe films

Gester

Daboo

Hicken

et al. 1996

Journal of Applied Physics

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148

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Low temperature oxidation mechanisms of nanocrystalline magnetite thin film J. Appl. Phys. 113, 013510 (2013) In situ control of electronic phase separation in La1/8 Pr4/8Ca3/8MnO3/PNM-PT thin films using ferroelectricpoling-induced strain J. Appl. Phys. 113, 013705 (2013) Spin precession modulation in a magnetic bilayer Appl. Phys. Lett. 101, 262406 (2012) Alternating domains with uniaxial and biaxial magnetic anisotropy in epitaxial Fe films on BaTiO3 Appl. Phys. Lett. 101, 262405 (2012) Additional information on J. Appl. Phys. We have studied the evolution of the magnetic in-plane anisotropy in epitaxial Fe/GaAs films of both ͑001͒ and ͑110͒ orientation as a function of the Fe layer thickness using the longitudinal magneto-optic Kerr effect and Brillouin light scattering. Magnetization curves which are recorded in situ during film growth reveal a continuous change of the net anisotropy axes with increasing film thickness. This behavior can be understood to arise from the combination of a uniaxial and a cubic in-plane magnetic anisotropy which are both thickness dependent. Structural analysis of the substrate and Fe film surfaces provides insight into the contribution of atomic steps at the interfaces to the magnetic anisotropy. Changing the degree of crystalline order at the Fe-GaAs interface allows us to conclude that the magnetic anisotropies are determined by atomic scale order.

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Section: Discussionmentioning

confidence: 85%

Section: Discussionmentioning

confidence: 99%

Section: A (001) Surfacementioning

confidence: 99%

Section: A (001) Surfacementioning

confidence: 99%

See 2 more Smart Citations

Continuous evolution of the in-plane magnetic anisotropies with thickness in epitaxial Fe films

Gester

Daboo

Hicken

et al. 1996

Journal of Applied Physics

Self Cite

148

View full text Add to dashboard Cite

show abstract

“…Most of previous studies, however, have only considered (100) and (110) oriented films [1][2][3][4][5][6][7][8] . For the (111) orientation spin-wave frequency calculations have not been presented so far probably due to the more complicated algebra involved and due to the lack of experimental data.…”

Section: Introductionmentioning

confidence: 99%

Spin waves and magnetic anisotropy in ultrathin (111)-oriented cubic films

Gubbiotti

Carlotti

Hillebrands

1998

J. Phys.: Condens. Matter

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The dispersions of dipolar (Damon-Eshbach modes) and exchange dominated spin waves are calculated for in-plane magnetized thin and ultrathin cubic films with (111) crystal orientation and the results are compared with those obtained for the other principal planes. The properties of these magnetic excitations are examined from the point of view of Brillouin light scattering experiments. Attention is paid to study the spin-wave frequency variation as a function of the magnetization direction in the film plane for different film thicknesses. Interface anisotropies and the bulk magnetocrystalline anisotropy are considered in the calculation. A quantitative comparison between an analytical expression obtained in the limit of small film thickness and wave vector and the full numerical calculation is given.

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Brillouin scattering and magnetic excitations in layered structures

Carlotti

Gubbiotti

1999

Riv. Nuovo Cim.

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Brillouin light scattering studies of magnetic anisotropy in epitaxial Fe/GaAs films

Cited by 45 publications

References 39 publications

Continuous evolution of the in-plane magnetic anisotropies with thickness in epitaxial Fe films

Continuous evolution of the in-plane magnetic anisotropies with thickness in epitaxial Fe films

Spin waves and magnetic anisotropy in ultrathin (111)-oriented cubic films

Brillouin scattering and magnetic excitations in layered structures

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