X-Ray Magnetic Circular Dichroism Measurement of Fe–Co Alloy Films Prepared by Electrodeposition

Autor:	Zhang Wen-Hua, Zhu Jun-Fa, Li Zong-Mu, Xu Fa-Qiang, Wang Jie, Wang Li-Wu
Rok vydání:	2007
Předmět:	Physics Condensed Matter::Materials Science Magnetic anisotropy Paramagnetism Magnetic moment X-ray magnetic circular dichroism Magnetic domain Condensed matter physics Ferromagnetism Magnetic circular dichroism General Physics and Astronomy Magnetic force microscope
Zdroj:	Chinese Physics Letters. 24:2667-2670
ISSN:	1741-3540 0256-307X
DOI:	10.1088/0256-307x/24/9/057
Popis:	The macro- and micro-magnetic properties of Fe–Co alloy films eletrodeposited on GaAs(100) are studied by synchrotron radiation x-ray magnetic circular dichroism (XMCD) in combination with the magneto-optical Kerr effect (MOKE) measurements and magnetic force microscopy (MFM). The orbital and spin magnetic moments of each element in the Fe–Co alloy are determined by the sum rules of XMCD. Element-specific hysteresis loops (ESHL) are obtained by recording the L3 MCD signals as a function of applied magnetic field. MOKE results reveal that the amorphous films are magnetically isotropic in the surface plane. The MFM image shows that the dimension of the magnetic domains is about 1–2 μm, which is much larger than that of the grains, indicating that there are intergranular correlations among these grains. Both ESHL and MOKE hysteresis loops indicate the strong ferromagnetic coupling of Fe and Co in the alloy films.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::ad1418eaf8addd62091a51b4cdca44f4 https://doi.org/10.1088/0256-307x/24/9/057 Zobrazit plný text záznamu