The exchange interaction effects on magnetic properties of the nanostructured CoPt particles
View/ Open:
URI (for links/citations):
https://elib.sfu-kras.ru/handle/2311/27918Author:
Komogortsev, S. V.
Iskhakov, R. S.
Zimin, A. A.
Filatov, E. Yu.
Korenev, S. V.
Shubin, Yu. V.
Chizhik, N. A.
Yurkina, G. Yu.
Eremina, E. V.
Corporate Contributor:
Научно-исследовательская часть
Date:
2016-03Journal Name:
Journal of Magnetism and Magnetic MaterialsJournal Quartile in Scopus:
Q1Journal Quartile in Web of Science:
Q2Bibliographic Citation:
Komogortsev, S. V. The exchange interaction effects on magnetic properties of the nanostructured CoPt particles [Текст] / S. V. Komogortsev, R. S. Iskhakov, A. A. Zimin, E. Yu. Filatov, S. V. Korenev, Yu. V. Shubin, N. A. Chizhik, G. Yu. Yurkina, E. V. Eremina // Journal of Magnetism and Magnetic Materials. — 2016. — Т. 401. — С. 236-241Abstract:
Various manifestations of the exchange interaction effects in magnetization curves of the CoPt nanostructured particles are demonstrated and discussed. The inter-grain exchange constant A in the sponge-like agglomerates of crystallites is estimated as A=(7±1) pJ/m from the approach magnetization to saturation curves that is in good agreement with A=(6.6±0.5) pJ/m obtained from Bloch T 3/2 law. The fractal dimensionality of the exchange coupled crystallite system in the porous media of the disordered CoPt alloy d=(2.60±0.18) was estimated from the approach magnetization to saturation curve. Coercive force decreases with temperature as Hc~T 3/2 which is assumed to be a consequence of the magnetic anisotropy energy reduction due to the thermal spin wave excitations in the investigated CoPt particles.
Collections:
Metadata:
Show full item recordRelated items
Showing items related by title, author, creator and subject.
-
Using Magnetic and para magnetic Micro particles (Chemical ) During EMH (Electro Magnetic Heating )for Thermally EOR(Enhanced Oil Recovery ) of West-Siberian Heavy Oil .
Ebrahimi, H. -. (Сибирский федеральный университет, 2017-04-21) -
The Characteristics of Observation of the Non-uniform Magnetization on the Surface of the Thin Magnetic Films in Ta/CoFeB/MgO/CoFeB/Ta Multilayers
Djuzhev, Nikolay A.; Popkov, Anatoly F .; Makhiboroda, Maksim A.; Demin, Gleb D.; Kozmin, Aleksandr M.; Chinenkov, Maksim Y.; Дюжев, Николай А; Попков, Анатолий Ф.; Махиборода, Максим А.; Демин, Глеб Д.; Козьмин, Александр М.; Чиненков, Максим Ю. (Сибирский федеральный университет. Siberian Federal University, 2016-12)This work presents the results of the study of non-uniformly magnetized regions on the surface of thin magnetic films in multilayer magnetic tunnel junction (MTJ) structure Ta/CoFeB/MgO/CoFeB/Ta ob- served by highly ... -
Bilayer Magnetic Structures with Dipolar Interaction in Magnetic Field
Soldusova, Anna P.; Prudnikov, Pavel V.; Солдусова, Анна П.; Прудников, Павел В. (Сибирский федеральный университет. Siberian Federal University, 2017-05)Monte Carlo simulation was conducted for bilayer magnetic structures with dipolar interlayer interaction in an external magnetic field. Specific hysteresis loops were obtained for the system. Non-equilibrium relaxation ... -
Influence of varying magnetic order in external magnetic field on the electronic structure and Fermi surface within the t-J model
Kuz’Min, V. I.; Nikolaev, S. V.; Ovchinnikov, S. G. (2016) -
Influence of varying magnetic order in external magnetic field on the electronic structure and Fermi surface within the t-J model
Kuz’Min, V. I.; Nikolaev, S. V.; Ovchinnikov, S. G. (2015-12)