Magnetic dichroism in angle-resolved hard x-ray photoemission from buried layers
作者： Xeniya Kozina , Gerhard H. Fecher , Gregory Stryganyuk , Siham Ouardi , Benjamin Balke
DOI: 10.1103/PHYSREVB.84.054449
关键词: Thin film 、 X-ray photoelectron spectroscopy 、 Heusler compound 、 Magnetic moment 、 Condensed matter physics 、 Materials science 、 Dichroism 、 X-ray magnetic circular dichroism 、 Analytical chemistry 、 Ferromagnetism 、 Excitation
摘要: This work reports the measurement of magnetic dichroism in angular-resolved photoemission from in-plane magnetized buried thin films. The high bulk sensitivity hard x-ray photoelectron spectroscopy (HAXPES) combination with circularly polarized radiation enables investigation properties layers. HAXPES experiments an excitation energy 8 keV were performed on exchange-biased layers covered by oxide Two types structures investigated IrMn exchange-biasing layer either above or below ferromagnetic layer: one a CoFe top and another Co${}_{2}$FeAl beneath layer. A pronounced is found Co Fe $2p$ states both materials. localization moments at site conditioning peculiar characteristics Heusler compound, predicted to be half-metallic ferromagnet, revealed detected states.
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