Sajid Husain

Growth of Co2FeAl Heusler alloy thin films on Si(100) having very small Gilbert damping by Ion beam sputtering

The influence of growth temperature Ts (300–773 K) on the structural phase ordering, static and dynamic magnetization behaviour has been investigated in ion beam sputtered full Heusler alloy Co2FeAl (CFA) thin films on industrially important Si(100) substrate. The B2 type magnetic ordering is established in these films based on the clear observation of the (200) diffraction peak. These ion beam sputtered CFA films possess very small surface roughness of the order of subatomic dimensions (<3 Å) as determined from the fitting of XRR spectra and also by AFM imaging. This is supported by the occurrence of distinct Kiessig fringes spanning over the whole scanning range (~4°) in the x-ray reflectivity (XRR) spectra. The Gilbert damping constant α and effective magnetization 4πMeff are found to vary from 0.0053 ± 0.0002 to 0.0015 ± 0.0001 and 13.45 ± 00.03 kG to 14.03 ± 0.04 kG, respectively. These Co2FeAl films possess saturation magnetization ranging from 4.82 ± 0.09 to 5.22 ± 0.10 μB/f.u. consistent with the bulk L21-type ordering. A record low α-value of 0.0015 is obtained for Co2FeAl films deposited on Si substrate at Ts ~ 573 K.

Temperature-dependent Gilbert damping of Co2FeAl thin films with different degree of atomic order

Half-metallicity and low magnetic damping are perpetually sought for spintronics materials, and full Heusler compounds in this respect provide outstanding properties. However, it is challenging to ...

Spin reorientation in NdFe0.5Mn0.5O3 : Neutron scattering and ab initio study

The structural, magnetic, and electronic properties of NdFe

Structural and magnetic properties of ion beam sputtered Co2FeAl full Heusler alloy thin films

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Growth and dynamic magnetization study of Co2MnAl full Heusler alloy thin films

Mn

Effect of post-annealing on the magnetic properties of sputtered Mn56Al44 thin films

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Growth dependent magnetization reversal in Co2MnAl full Heusler alloy thin films

O

Tunneling Magneto-resistance in grain boundary tailored Fe3O4 nano structured thin films

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Anomalous Hall effect in ion-beam sputtered Co2FeAl full Heusler alloy thin films

have been studied in detail using bulk magnetization, neutron/x-ray diffraction and first principles density functional theory calculations. The material crystallizes in the orthorhombic

Effect of in situ electric-field-assisted growth on antiphase boundaries in epitaxial Fe3O4 thin films on MgO

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