On magnetic properties of Me-doped titanium dioxide (Me=Co, V, Fe, Mn)

Perov, N.; Semisalova, A.S.; Orlov, A.; Gan'shina, Е.A.; Anwand, W.; Potzger, К.; Granovsky, A.B.; Smekhova, A.

Авторы: Perov N., Semisalova A.S., Orlov A., Gan'shina Е.A., Anwand W., Potzger К., Granovsky A.B., Smekhova A.
Сборник: Материалы XX Международного симпозиума “Нанофизика и наноэлектроника” (Нижний Новгород, 14-18 марта 2016)
Том: 1
Год издания: 2016
Место издания: Издательство Нижегородского госуниверситета им. Н.И. Лобачевского Нижний Новгород
Первая страница: 147
Последняя страница: 148
Аннотация: We survey early and recent experimental results both ours and others of magnetic properties study of dilute magnetic oxide semiconductors, focusing on Me-doped titanium dioxide (Me=Co, V, Fe, Mn). Room temperature ferromagnetism was observed in thin films prepared by RF sputtering, but their magnetic properties appeared to be quite different. Magnetic moments in case of TiO2-:Со are mostly associated with local polarization of Co ions and induced defects. There is an evidence of intrinsic ferromagnetism in the case of low Co content (<1 at.%). Room temperature ferromagnetism correlates with a resistivity range depending on doping level. A correlation between magnetization and concentration of the negatively charged defects in thin films was also found. The origin of room temperature magnetism in these systems is discussed.
Добавил в систему: Перов Николай Сергеевич

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On magnetic properties of Me-doped titanium dioxide (Me=Co, V, Fe, Mn)статья

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