Magnetic resonance properties of low-dimensional cobalt - Al2O3-germanium tunnel contacts
https://doi.org/10.26907/mrsej-22201
Abstract
The magnetic resonance properties of a low-dimensional cobalt-Al2O3-germanium tunnel contact are studied in this work. The appearance of minima observed at low temperatures on both sides of the cobalt layer was found on the thermomagnetic curve. The value of the temperature minimum differs in magnitude on both sides of the cobalt layer. The position of the minimum in the temperature dependence of magnetization depends on the sample preparation technology. As a result of layer growth, at least two magnetic phases appear. One contribution is from the spins of ferromagnetic particles (cobalt particles with a hexagonal close packed lattice), and additional contributions from the magnetically disordered phase of fine cobalt particles and Co-Al2O3 compounds
Supporting agencies: The work was carried out in the process of fulfilling the state task of the Ministry of Science and Higher Education of the Russian Federation No. FSRZ-2020-0011 “Synthesis and physical foundations of nanoscale film and granular composite materials for spintronics devices”
About the Authors
A. V. Kobyakov
Siberian Federal University; Kirensky Institute of Physics, Krasnoyarsk Scientific Center, Siberian Branch, Russian Academy of Science
Russian Federation
Russian Federation
Krasnoyarsk
G. S. Patrin
Siberian Federal University; Kirensky Institute of Physics, Krasnoyarsk Scientific Center, Siberian Branch, Russian Academy of Science
Russian Federation
Russian Federation
Krasnoyarsk
V. I. Yushkov
Siberian Federal University; Kirensky Institute of Physics, Krasnoyarsk Scientific Center, Siberian Branch, Russian Academy of Science
Russian Federation
Russian Federation
Krasnoyarsk
Ya. G. Shiyan
Siberian Federal University; Kirensky Institute of Physics, Krasnoyarsk Scientific Center, Siberian Branch, Russian Academy of Science
Russian Federation
Russian Federation
Krasnoyarsk
R. Yu. Rudenko
Siberian Federal University
Russian Federation
Russian Federation
Krasnoyarsk
N. N. Kosyrev
Kirensky Institute of Physics, Krasnoyarsk Scientific Center, Siberian Branch, Russian Academy of Sciences; Achinsk Branch of Krasnoyarsk State Agrarian University
Russian Federation
Russian Federation
Krasnoyarsk
Achinsk
S. M. Zharkov
Siberian Federal University; Kirensky Institute of Physics, Krasnoyarsk Scientific Center, Siberian Branch, Russian Academy of Science
Russian Federation
Russian Federation
Krasnoyarsk
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Review
For citations:
Kobyakov A.V., Patrin G.S., Yushkov V.I., Shiyan Ya.G., Rudenko R.Yu., Kosyrev N.N., Zharkov S.M. Magnetic resonance properties of low-dimensional cobalt - Al2O3-germanium tunnel contacts. Magnetic Resonance in Solids. 2022;24(2):22201(6 pp.). https://doi.org/10.26907/mrsej-22201
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