【文章名】X-ray magnetic circular dichroism of ferromagnetic Co4N epitaxial films on SrTiO3(001) substrates grown by molecular beam epitaxy - art. no. 252501
[摘要]：5-nm thick Co4N layers capped with 3-nm thick Au layers were grown epitaxially on SrTiO3(001) substrates by molecular beam epitaxy using solid Co and a radio-frequency NH3 plasma. Spin and orbital magnetic moments of the Co4N layers were estimated using x-ray magnetic circular dichroism (XMCD) measurements at 300K. The site-averaged Co 3d spin magnetic moment is evaluated to be about 1.4 mu(B), which is smaller than that predicted theoretically (1.58 mu B). The element-specific XMCD intensities for the Co L-3 edge and N K edge show that the magnetic moment is induced at the N atoms. (C) 2011 American Institute of Physics. [doi: 10.1063/1.3670353]
