Epitaxial growth and magnetic properties of thin films

Autor:	S. T. B. Goennenwein, Stephan Geprägs, Matthias Opel, Rudolf Gross, Wentao Yu, Franz D. Czeschka, Werner Mader
Rok vydání:	2009
Předmět:	Magnetic anisotropy Magnetization Materials science Condensed matter physics Spin polarization Spintronics Ferrimagnetism Coercivity Thin film Condensed Matter Physics Electronic Optical and Magnetic Materials Pulsed laser deposition
Zdroj:	Journal of Magnetism and Magnetic Materials. 321:2001-2004
ISSN:	0304-8853
Popis:	The double perovskite Sr 2 CrReO 6 is an interesting material for spintronics, showing ferrimagnetism up to 635 K with a predicted high spin polarization of ≈ 86 % . We fabricated Sr 2 CrReO 6 epitaxial films by pulsed laser deposition on (0 0 1)-oriented SrTiO 3 substrates. Phase-pure films with optimum crystallographic and magnetic properties were obtained by growing at a substrate temperature of 700 ∘ C in pure O 2 of 6.6 × 10 - 4 mbar . The films are c -axis oriented, coherently strained, and show less than 20% anti-site defects. The magnetization curves reveal high saturation magnetization of 0.8 μ B /formula unit and high coercivity of 1.1 T, as well as a strong magnetic anisotropy.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::36ae3944f17cffd26c6ad37c8ff5d858 https://doi.org/10.1016/j.jmmm.2008.12.029 Zobrazit plný text záznamu Full Text from ScienceDirect