![]() |
ИСТИНА |
Войти в систему Регистрация |
ИСТИНА ИНХС РАН |
||
Chemically ordered Fe60Al40 in the B2 structure shows weak ferromagnetism, while the disordered phase with the A2 structure exhibits a ferromagnetic state. Correspondingly the transition leads to an increase of the effective number of Fe-Fe nearest neighbors and of the lattice constant [1]. This phase transition can be driven by ion irradiation. In this work we investigate Fe60Al40 thin films before and after 10 and 20 keV Ne+ irradiation by means of X-ray magnetic circular dichroism (XMCD) at the Fe L2,3- and K-edge to analyze the microscopic magnetic structure. For a comparison magnetometry was used concerning the depth-profile of the induced magnetism [2,3]. These results are correlated to the modified structural properties. [1] J. Fassbender et al. Phys. Rev. B 2008, 77, 174430 [2] R. Bali et al. Nano Lett. 2014, 14 (2), pp 435-441 [3] N. Tahir et al. Phys. Rev. B 2015, 92, 144429