Effect of film thickness on the structural and magnetic properties of Co2FeAl0.5Si0.5 Heusler alloy thin film

Co2FeAl0.5Si0.5(CFAS) thin films of thickness, t = 25 nm, 50 nm and 75 nm have been investigated using ferromagnetic resonance (FMR) to determine the Gilbert damping constant, effective magnetization, g-factor, and anisotropy field. Structural characterization reveals that the film with thickness, t...

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Main Authors: Longchar, Lanuakum A., Rahaman, Mainur, Lalita, Basheed, G. A., Raja, M. Manivel, Kaul, S. N., Srinath, S.
Format: Conference Proceeding
Language:English
Subjects:
Anisotropy
Damping
Ferromagnetic resonance
Ferromagnetism
Film thickness
Heusler alloys
Magnetic properties
Magnetic saturation
Structural analysis
Thin films
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Rahaman, Mainur
Lalita
Basheed, G. A.
Raja, M. Manivel
Kaul, S. N.
Srinath, S.
description Co2FeAl0.5Si0.5(CFAS) thin films of thickness, t = 25 nm, 50 nm and 75 nm have been investigated using ferromagnetic resonance (FMR) to determine the Gilbert damping constant, effective magnetization, g-factor, and anisotropy field. Structural characterization reveals that the film with thickness, t = 50 nm, has the highest B2 crystalline order, highest magnetization (∼ 1304 Gauss), lowest inhomogeneous contribution to linewidth and lowest Gilbert damping constant (∼ 0.002). The temperature variation of saturation magnetization, MS(T), is best described by the Bloch T3/2 law of thermal demagnetization along with the thermal renormalization term in the spin-wave stiffness expression.
doi_str_mv 10.1063/5.0178942
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source American Institute of Physics:Jisc Collections:Transitional Journals Agreement 2021-23 (Reading list)
subjects Anisotropy
Damping
Ferromagnetic resonance
Ferromagnetism
Film thickness
Heusler alloys
Magnetic properties
Magnetic saturation
Structural analysis
Thin films
title Effect of film thickness on the structural and magnetic properties of Co2FeAl0.5Si0.5 Heusler alloy thin film
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