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Soft X-ray Magnetic Circular Dichroism of c(2x2) CuMn Ordered Surface Alloy
classification
❄️ cond-mat.mtrl-sci
keywords
magneticx-rayalloybeencircularclearlycumndichroism
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Mn 2p soft X-ray absorption (XAS) spectroscopy excited with circularly polarized synchrotron radiation has been applied to a new class of material, c(2x2)CuMn/Cu(001) two-dimensional ordered surface alloy. A significant X-ray magnetic circular dichroism (XMCD) signal has been clearly observed at T=25K, indicating the existence of the ferromagnetic state under the external magnetic field of 1.4 Tesla. The lineshape analyses of the XAS and XMCD spectra clearly show that the Mn 3d state is rather localized and has a high spin magnetic moment due to its half-filled character.
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