Epitaxial thin film ZnFe2O4: a semi-transparent magnetic semiconductor with high Curie temperature

被引：58

作者：

Chen, Y. F. ^{[1
]}

Spoddig, D. ^{[1
]}

Ziese, M. ^{[1
]}

机构：

[1] Univ Leipzig, Fac Phys & Geosci, Div Supercond & Magnetism, D-04103 Leipzig, Germany

来源：

JOURNAL OF PHYSICS D-APPLIED PHYSICS | 2008年 / 41卷 / 20期

关键词：

D O I：

10.1088/0022-3727/41/20/205004

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Semi-transparent ZnFe2O4 films were fabricated by pulsed laser deposition on MgAl2O4 substrates. Structural investigations showed epitaxial growth and a zinc-to-iron ratio of close to 1 : 2. The films had a saturation magnetization between 0.2 T and 0.4 T at low temperatures and a Curie temperature close to 600K and were in either a ferrimagnetic or a cluster-glass state. Resistivity measurements showed clear semiconducting behaviour with an activation energy depending on oxygen partial pressure. Their ferrimagnetic, semiconducting and semi-transparent properties make ZnFe2O4 films promising candidates for high Curie-temperature magnetic semiconductors.

引用

页数：7

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