X-ray magnetic circular dichroism of ferromagnetic Co4N epitaxial films on SrTiO3(001) substrates grown by molecular beam epitaxy | Zendy

Keita Ito | Zendy; Kazunori Harada | Zendy; Kaoru Toko | Zendy; Mao Ye | Zendy; A. Kimura | Zendy; Yukiharu Takeda | Zendy; Y. Saitoh | Zendy; Hiroyuki Akinaga | Zendy; Takashi Suemasu | Zendy

Open Access

X-ray magnetic circular dichroism of ferromagnetic Co4N epitaxial films on SrTiO3(001) substrates grown by molecular beam epitaxy

Author(s) -

Keita Ito,

Kazunori Harada,

Kaoru Toko,

Mao Ye,

A. Kimura,

Yukiharu Takeda,

Y. Saitoh,

Hiroyuki Akinaga,

Takashi Suemasu

Publication year - 2011

Publication title -

applied physics letters

Language(s) - English

Resource type - Journals

eISSN - 1077-3118

pISSN - 0003-6951

DOI - 10.1063/1.3670353

Subject(s) - magnetic circular dichroism , molecular beam epitaxy , magnetic moment , ferromagnetism , epitaxy , materials science , x ray magnetic circular dichroism , condensed matter physics , crystallography , nuclear magnetic resonance , chemistry , nanotechnology , physics , layer (electronics) , spectral line , astronomy

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 300 K. The site-averaged Co 3d spin magnetic moment is evaluated to be about 1.4 μB, which is smaller than that predicted theoretically (1.58 μB). The element-specific XMCD intensities for the Co L3 edge and N K edge show that the magnetic moment is induced at the N atoms

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