Тип публикации: статья из журнала
Год издания: 2023
Идентификатор DOI: 10.21883/pss.2023.06.56116.57
Аннотация: <jats:p> To study the dependence of the properties of ternary oxides (Mn,Fe,Ga)<jats:sub>2</jats:sub>O<jats:sub>3</jats:sub> with the bixbyite structure on the composition, the temperature dependences of the magnetization and ac magnetic susceptibility of two single-crystal samples of different compositions obtained using the flux Показать полностьюmethod were analyzed. A detailed study of the structure was carried out using single-crystal X-ray diffraction analysis, and the changes in structural parameters depending on the composition were analyzed. The dc magnetization and ac magnetic susceptibility of Fe<jats:sub>1.1</jats:sub>Mn<jats:sub>0.76</jats:sub>Ga<jats:sub>0.14</jats:sub>O<jats:sub>3</jats:sub> and Fe<jats:sub>0.65</jats:sub>Mn<jats:sub>1.1</jats:sub>Ga<jats:sub>0.26</jats:sub>O<jats:sub>3</jats:sub> bixbyites have been studied. Despite the qualitatively similar behavior of the magnetic properties, significant differences were also found, despite a small difference in the Mn/Fe/Ga ratio in the samples under study. It is shown that both compounds experience two successive low-temperature magnetic phase transitions from the paramagnetic phase at T=20-32 K as the temperature is lowered. Calculations of the Mydosh parameter for the detected phase transitions showed different degrees of ordering in the compounds under study. Keywords: transition metal oxides, magnetic phase transitions, spin glass state, bixbyite. </jats:p>
Журнал: Physics of the Solid State
Выпуск журнала: Т. 65, № 6
Номера страниц: 1009
ISSN журнала: 10637834
Место издания: Saint Petersburg
Издатель: Физико-технический институт им. А.Ф. Иоффе РАН