Temperature dependent phonon Raman scattering of highly a-axis oriented CoFe 2O 4 inverse spinel ferromagnetic films grown by pulsed laser deposition

Y. Y. Liao; Y. W. Li; Z. G. Hu; J. H. Chu

doi:10.1063/1.3683520

Temperature dependent phonon Raman scattering of highly a-axis oriented CoFe ₂O ₄ inverse spinel ferromagnetic films grown by pulsed laser deposition

Y. Y. Liao
, Y. W. Li
, Z. G. Hu^*
, J. H. Chu

^*此作品的通讯作者

物理与电子科学学院

East China Normal University

科研成果: 期刊稿件 › 文章 › 同行评审

54 引用（Scopus）

摘要

Lattice vibrations of highly a-axis oriented CoFe ₂O ₄ (CFO) films have been investigated by Raman scattering in the temperature range of 80-873 K. The five phonon modes T _1g(2), T _1g(3), E _g, A _1g(1), A _1g(2), and their evolutions can be uniquely distinguished. It was found that an electron transfer between Co ² and Fe ³ cations occurs in octahedral sites at about 173 K. The structure disorder in the CFO films appears with increasing the temperature, which indicates the cation migration between tetrahedral and octahedral sites. The phenomena suggest the structural transformation trend from inverse spinel to normal spinel at the elevated temperatures.

源语言	英语
期刊论文编号	071905
期刊	Applied Physics Letters
卷	100
期	7
DOI	https://doi.org/10.1063/1.3683520
出版状态	已出版 - 13 2月 2012

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title = "Temperature dependent phonon Raman scattering of highly a-axis oriented CoFe 2O 4 inverse spinel ferromagnetic films grown by pulsed laser deposition",

abstract = "Lattice vibrations of highly a-axis oriented CoFe 2O 4 (CFO) films have been investigated by Raman scattering in the temperature range of 80-873 K. The five phonon modes T 1g(2), T 1g(3), E g, A 1g(1), A 1g(2), and their evolutions can be uniquely distinguished. It was found that an electron transfer between Co 2 and Fe 3 cations occurs in octahedral sites at about 173 K. The structure disorder in the CFO films appears with increasing the temperature, which indicates the cation migration between tetrahedral and octahedral sites. The phenomena suggest the structural transformation trend from inverse spinel to normal spinel at the elevated temperatures.",

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T1 - Temperature dependent phonon Raman scattering of highly a-axis oriented CoFe 2O 4 inverse spinel ferromagnetic films grown by pulsed laser deposition

AU - Liao, Y. Y.

AU - Li, Y. W.

AU - Hu, Z. G.

AU - Chu, J. H.

PY - 2012/2/13

Y1 - 2012/2/13

N2 - Lattice vibrations of highly a-axis oriented CoFe 2O 4 (CFO) films have been investigated by Raman scattering in the temperature range of 80-873 K. The five phonon modes T 1g(2), T 1g(3), E g, A 1g(1), A 1g(2), and their evolutions can be uniquely distinguished. It was found that an electron transfer between Co 2 and Fe 3 cations occurs in octahedral sites at about 173 K. The structure disorder in the CFO films appears with increasing the temperature, which indicates the cation migration between tetrahedral and octahedral sites. The phenomena suggest the structural transformation trend from inverse spinel to normal spinel at the elevated temperatures.

AB - Lattice vibrations of highly a-axis oriented CoFe 2O 4 (CFO) films have been investigated by Raman scattering in the temperature range of 80-873 K. The five phonon modes T 1g(2), T 1g(3), E g, A 1g(1), A 1g(2), and their evolutions can be uniquely distinguished. It was found that an electron transfer between Co 2 and Fe 3 cations occurs in octahedral sites at about 173 K. The structure disorder in the CFO films appears with increasing the temperature, which indicates the cation migration between tetrahedral and octahedral sites. The phenomena suggest the structural transformation trend from inverse spinel to normal spinel at the elevated temperatures.

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DO - 10.1063/1.3683520

M3 - 文章

AN - SCOPUS:84863155894

SN - 0003-6951

VL - 100

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 7

M1 - 071905

ER -

Temperature dependent phonon Raman scattering of highly a-axis oriented CoFe 2O 4 inverse spinel ferromagnetic films grown by pulsed laser deposition

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Temperature dependent phonon Raman scattering of highly a-axis oriented CoFe ₂O ₄ inverse spinel ferromagnetic films grown by pulsed laser deposition