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- W2058577347 abstract "산소결핍(oxygen vacancy) 들이 존재하는 아나타시(anatase) 및 루타일(rutile) 구조의 <TEX>$TiO_{2-{delta}}$</TEX> 박막들에서 강자성 현상이 상온에서 관측되었다. 시료들에 대한 XPS 측정 결과 <TEX>$Ti^{3+}$</TEX> 이온의 존재가 관측되었으며 산소결핍에 의한 전하 불균형을 상쇄시키기 위하여 생성되는 것으로 해석된다. <TEX>$TiO_{2-{delta}}$</TEX> 박막에서 나타나는 상온 강자성은 <TEX>$Ti^{3+}$</TEX> 이온들이 가지는 <TEX>$d^1$</TEX> 스핀들의 정렬에 의한 것으로 해석 되어진다. 이와 같은 강자성 스핀 정렬은 산소결핍 자리에 속박된 전자를 중심으로 형성되는 자기 폴라론(magneticpolaron)에 의하여 나타날 수 있다. A room-temperature ferromagnetism has been observed for oxygen-deficient rutile and anatase <TEX>$TiO_{2-{delta}}$</TEX> films. XPS data revealed the existence of <TEX>$Ti^{3+}$</TEX> ions, for compensating the charge imbalance caused by oxygen vacancies in the film. The observed ferromagnetism is attributable to the spin (<TEX>$3d^1$</TEX>) alignment of the <TEX>$Ti^{3+}$</TEX> ions. Such spin alignment can happen through magnetic polaron formed by trapped electron in oxygen vacancy and magnetic <TEX>$Ti^{3+}$</TEX> ions around it." @default.
- W2058577347 created "2016-06-24" @default.
- W2058577347 date "2006-08-01" @default.
- W2058577347 modified "2023-09-25" @default.
- W2058577347 title "Room-temperature Ferromagnetism in Oxygen-deficient TiO2-δ Thin Films" @default.
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- W2058577347 doi "https://doi.org/10.4283/jkms.2006.16.4.206" @default.
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