Open AccessТемпературная зависимость эффективного поля магнитной анизотропии и ширины линии ферромагнитного резонанса поликристаллических сложнозамещенных гексагональных магнитноодноосных ферритов в диапазоне частот 25-67 GHz
Author(s) -
С.В. Щербаков,
А.Г. Налогин,
В.Г. Костишин,
А.С. Семенов,
Н.Е. Адиатулина,
А.А. Алексеев,
Е.А. Белоконь,
А.В. Тимофеев,
Д.Н. Читанов
Publication year - 2020
Publication title -
žurnal tehničeskoj fiziki
Language(s) - English
Resource type - Journals
eISSN - 1726-748X
pISSN - 0044-4642
DOI - 10.21883/jtf.2020.05.49179.161-19
Subject(s) - materials science , ferromagnetic resonance , strontium , anisotropy , atmospheric temperature range , laser linewidth , barium , condensed matter physics , nuclear magnetic resonance , magnetic anisotropy , ceramic , ferromagnetism , remanence , magnetic field , magnetization , metallurgy , chemistry , physics , optics , laser , organic chemistry , quantum mechanics , meteorology
In the work in the frequency range 25 – 67 GHz the temperature changes of the effective magnetic anisotropy field and ferromagnetic resonance linewidth of the samples isotropic and anisotropic hexaferrite SrFe11.2Al0.1Si0.15Ca0.15O19 and anisotropic hexaferrite BaFe10.4Al1.4Si0.15Mn0.1O19 were studied. The samples obtained by ceramic technology with the pressing of the raw blanks in a magnetic field of 10 kOe. The studies were carried out in the temperature range+25 – +85 ºC. It was found that in the specified temperature range, the change in magnetic anisotropy is 9.8 Oe/ºC for barium hexaferrite and 4.2 Oe/ºC for strontium hexaferrite, and the change in ferromagnetic resonance linewidth is 12.2 Oe/ºC for barium hexaferrite and 10 – 12.3 Oe/ºC for strontium hexaferrite.