Polarized neutron study of Gd1−xCox/Co multilayers

Autor: J. A. González, J. P. Andrés, J. M. Riveiro, Jose M. Colino, M. A. López de la Torre
Rok vydání: 2004
Předmět:
Zdroj: Physica B: Condensed Matter. 345:181-184
ISSN: 0921-4526
DOI: 10.1016/j.physb.2003.11.049
Popis: In recent studies, the strong interdiffusion that dominates the growth of Gd/Co multilayers has been quantified and minimized by employing different Gd 1− x Co x alloys instead of pure Gd, while the ferrimagnetic structure, characteristic of this system, has been preserved. In order to enhance our understanding of the magnetic structure of these samples and their microstructure, we have employed polarized neutron reflectivity (PNR). In this communication, we complement previous analysis of X-ray reflectivity and PNR in Gd 0.63 Co 0.37 /Co samples with a comparative study that includes the Gd 0.40 Co 0.60 /Co multilayers. We will show that Gd 0.40 Co 0.60 /Co multilayers present sharp interfaces, while the Gd 0.63 Co 0.37 /Co system has an interfacial region of several angstroms with particular magnetic properties.
Databáze: OpenAIRE