Ferromagnetic resonance study of the epitaxial VN/Pd0.96Fe0.04 thin film heterostructure on MgO substrate
https://doi.org/10.26907/mrsej-19407
Abstract
The paper reports on the ferromagnetic resonance (FMR) and magnetometry studies of the epitaxial superconductor/ferromagnet-type thin film heterostructure of VN/Pd0.96Fe0.04 on the (001)-oriented MgO substrate. Vanadium nitride layer was deposited by dc reactive magnetron sputtering of the V-target in the mixture of the Ar and N2-gases. Pd-Fe layer was grown by molecular beam deposition in the ultrahigh vacuum conditions. LEED patterns and XRD analysis revealed the "cube-on-cube" epitaxy at both the MgO/VN and VN/Pd0.96Fe0.04 interfaces and single crystalline structure of both layers. Ferromagnetic resonance spectra revealed a single absorption line with strong orientation dependence and manifestations of superconductivity of the VN-layer at a temperature of 4.2 K. Magnetic anisotropy constants for the Pd0.96Fe0.04 layer were found from the analysis of the orientation dependence of the FMR resonance field and were compared with that of the film of the same composition grown directly on MgO. We find that the tetragonal distortion for Pd0.96Fe0.04 on the VN layer is reduced due to a relaxed lattice mismatch with respect to MgO.
Keywords
palladium-iron alloy,
vanadium nitride,
epitaxial heterostructure,
ferromagnetic resonance,
magnetocrystalline anisotropy
Supporting agencies: The authors acknowledge support by the RSF, project No. 18-12-00459. R.V.Yu. acknowledges the support from the subsidy allocated to Kazan Federal University to fulfill the state assignmentin the sphere of scientific activities (task No. 3.7704.2017/6.7).
About the Authors
A. Esmaeili
Kazan Federal University
Russian Federation
Russian Federation
Kremlevskaya 18, Kazan 420008
W. M. Mohammed
Kazan Federal University
Russian Federation
Russian Federation
Kremlevskaya 18, Kazan 420008
A. I. Gumarov
Kazan Federal University
Russian Federation
Russian Federation
Kremlevskaya 18, Kazan 420008
I. R. Vakhitov
Kazan Federal University
Russian Federation
Russian Federation
Kremlevskaya 18, Kazan 420008
B. F. Gabbasov
Kazan Federal University
Russian Federation
Russian Federation
Kremlevskaya 18, Kazan 420008
A. G. Kiiamov
Kazan Federal University
Russian Federation
Russian Federation
Kremlevskaya 18, Kazan 420008
M. N. Aliyev
Baku State University
Azerbaijan
Azerbaijan
Z. Khalilov 23, Baku AZ-1148
R. V. Yusupov
Kazan Federal University
Russian Federation
Russian Federation
Kremlevskaya 18, Kazan 420008
L. R. Tagirov
Kazan Federal University; Zavoisky Physical-Technical Institute, FRC "Kazan Scientific Center of RAS"
Russian Federation
Russian Federation
Kremlevskaya 18, Kazan 420008; Sibirsky Trakt 10/7, Kazan 420029
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Review
For citations:
Esmaeili A., Mohammed W.M., Gumarov A.I., Vakhitov I.R., Gabbasov B.F., Kiiamov A.G., Aliyev M.N., Yusupov R.V., Tagirov L.R. Ferromagnetic resonance study of the epitaxial VN/Pd0.96Fe0.04 thin film heterostructure on MgO substrate. Magnetic Resonance in Solids. 2019;21(4):19407 (9 pp.). https://doi.org/10.26907/mrsej-19407
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