Magnetic properties and magnetic reversal processes of the Sm-Gd-Zr-Co-Cu-Fe alloys
The results of experimental studies of magnetic properties and magnetization reversal processes of a series of alloys Sm-Gd-Zr-Co-Cu-Fe are presented. The studied samples were subjected to prolonged isothermal annealing for 24 hours, which made it possible to achieve the formation of a certain nanos...
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| Format: | Article |
| Language: | Russian |
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Tver State University
2024-12-01
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| Series: | Физико-химические аспекты изучения кластеров, наноструктур и наноматериалов |
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| Online Access: | https://physchemaspects.ru/2024/doi-10-26456-pcascnn-2024-16-258/?lang=en |
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| author | P.A. Rakunov M.B. Lyakhova E.M. Semenova A.Yu.. Karpenkov |
| author_facet | P.A. Rakunov M.B. Lyakhova E.M. Semenova A.Yu.. Karpenkov |
| author_sort | P.A. Rakunov |
| collection | DOAJ |
| description | The results of experimental studies of magnetic properties and magnetization reversal processes of a series of alloys Sm-Gd-Zr-Co-Cu-Fe are presented. The studied samples were subjected to prolonged isothermal annealing for 24 hours, which made it possible to achieve the formation of a certain nanostructure that affects the hysteresis properties of the material and allows to achieve a high coercivity state. According to the magnetic measurements data obtained by the method of a vibrating magnetometer, the hysteresis loops are constructed, the dependence of the saturation magnetization, and the coercive force on chemical composition, and the values of the temperature coefficient of magnetization change depending on the relative content of Sm and Gd are determined. It is shown that the substitution of a part of samarium atoms for gadolinium atoms increases the effect of the mechanism of irreversible rotation of the spontaneous magnetization vector on the remagnetization of samples. Application of the studied samples in various devices puts serious demands on the stability of their magnetic properties at high temperatures. Our researches allow us to conclude that compounds with gadolinium concentration x=0,5 have the greatest coercive force, and compounds with gadolinium concentration in the range x=0,5-0,6 have the highest temperature stability. |
| format | Article |
| id | doaj-art-6aaf9519edc6446b82aadbf3ece542e0 |
| institution | OA Journals |
| issn | 2226-4442 2658-4360 |
| language | Russian |
| publishDate | 2024-12-01 |
| publisher | Tver State University |
| record_format | Article |
| series | Физико-химические аспекты изучения кластеров, наноструктур и наноматериалов |
| spelling | doaj-art-6aaf9519edc6446b82aadbf3ece542e02025-08-20T01:57:45ZrusTver State UniversityФизико-химические аспекты изучения кластеров, наноструктур и наноматериалов2226-44422658-43602024-12-011625826610.26456/pcascnn/2024.16.258Magnetic properties and magnetic reversal processes of the Sm-Gd-Zr-Co-Cu-Fe alloysP.A. Rakunov0M.B. Lyakhova1E.M. Semenova2A.Yu.. Karpenkov3Tver State UniversityTver State UniversityTver State UniversityTver State UniversityThe results of experimental studies of magnetic properties and magnetization reversal processes of a series of alloys Sm-Gd-Zr-Co-Cu-Fe are presented. The studied samples were subjected to prolonged isothermal annealing for 24 hours, which made it possible to achieve the formation of a certain nanostructure that affects the hysteresis properties of the material and allows to achieve a high coercivity state. According to the magnetic measurements data obtained by the method of a vibrating magnetometer, the hysteresis loops are constructed, the dependence of the saturation magnetization, and the coercive force on chemical composition, and the values of the temperature coefficient of magnetization change depending on the relative content of Sm and Gd are determined. It is shown that the substitution of a part of samarium atoms for gadolinium atoms increases the effect of the mechanism of irreversible rotation of the spontaneous magnetization vector on the remagnetization of samples. Application of the studied samples in various devices puts serious demands on the stability of their magnetic properties at high temperatures. Our researches allow us to conclude that compounds with gadolinium concentration x=0,5 have the greatest coercive force, and compounds with gadolinium concentration in the range x=0,5-0,6 have the highest temperature stability. https://physchemaspects.ru/2024/doi-10-26456-pcascnn-2024-16-258/?lang=enrare earth intermetallic compoundshard magnetic materialshysteresiscoercive forcemagnetizationmagnetization reversal processes |
| spellingShingle | P.A. Rakunov M.B. Lyakhova E.M. Semenova A.Yu.. Karpenkov Magnetic properties and magnetic reversal processes of the Sm-Gd-Zr-Co-Cu-Fe alloys Физико-химические аспекты изучения кластеров, наноструктур и наноматериалов rare earth intermetallic compounds hard magnetic materials hysteresis coercive force magnetization magnetization reversal processes |
| title | Magnetic properties and magnetic reversal processes of the Sm-Gd-Zr-Co-Cu-Fe alloys |
| title_full | Magnetic properties and magnetic reversal processes of the Sm-Gd-Zr-Co-Cu-Fe alloys |
| title_fullStr | Magnetic properties and magnetic reversal processes of the Sm-Gd-Zr-Co-Cu-Fe alloys |
| title_full_unstemmed | Magnetic properties and magnetic reversal processes of the Sm-Gd-Zr-Co-Cu-Fe alloys |
| title_short | Magnetic properties and magnetic reversal processes of the Sm-Gd-Zr-Co-Cu-Fe alloys |
| title_sort | magnetic properties and magnetic reversal processes of the sm gd zr co cu fe alloys |
| topic | rare earth intermetallic compounds hard magnetic materials hysteresis coercive force magnetization magnetization reversal processes |
| url | https://physchemaspects.ru/2024/doi-10-26456-pcascnn-2024-16-258/?lang=en |
| work_keys_str_mv | AT parakunov magneticpropertiesandmagneticreversalprocessesofthesmgdzrcocufealloys AT mblyakhova magneticpropertiesandmagneticreversalprocessesofthesmgdzrcocufealloys AT emsemenova magneticpropertiesandmagneticreversalprocessesofthesmgdzrcocufealloys AT ayukarpenkov magneticpropertiesandmagneticreversalprocessesofthesmgdzrcocufealloys |