Optical properties of T<SUB>0.2</SUB>Fe<SUB>2.8</SUB>O₄ (T = V, Cr, Mn) thin films derived from ferrimagnetic Fe₃O₄ were investigated by spectroscopic ellipsometry in the 1~8 eV photon-energy range. The difference in opti...
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https://www.riss.kr/link?id=A82581686
2011
Korean
428
KCI등재,ESCI
학술저널
56-60(5쪽)
0
상세조회0
다운로드다국어 초록 (Multilingual Abstract)
Optical properties of T<SUB>0.2</SUB>Fe<SUB>2.8</SUB>O₄ (T = V, Cr, Mn) thin films derived from ferrimagnetic Fe₃O₄ were investigated by spectroscopic ellipsometry in the 1~8 eV photon-energy range. The difference in opti...
Optical properties of T<SUB>0.2</SUB>Fe<SUB>2.8</SUB>O₄ (T = V, Cr, Mn) thin films derived from ferrimagnetic Fe₃O₄ were investigated by spectroscopic ellipsometry in the 1~8 eV photon-energy range. The difference in optical-absorption spectrum between the ternary compounds and Fe₃O₄ was analyzed based on preferable sites in spinel structure and iconicity of the doped V, Cr, and Mn ions. The observed absorption spectra from Fe₃O₄ and the ternary compounds can be interpreted as mainly due to charge-transfer transitions of Fe d electrons characterized by absorption structures with wide energy width. Also, the observed absorption structures with narrow energy width can be interpreted as due to crystal-field transitions between different d electron configurations of tetrahedral Fe<SUP>3+</SUP>(d?) ion. The transitions were described in terms of spin-polarized electronic states of Fe₃O₄.
비대칭 자기터널접합에서의 수직 스핀 전달 토크 : 물질 변수에 대한 의존성
짧은 전류 펄스를 이용한 전류 유도 자화 반전에서 에너지 장벽 분포의 효과
전기 집진기의 진동 탈진을 위한 전자기 진동 가진기의 집중매개변수 모델링 및 해석