Soft X-ray Magnetic Circular Dichroism of c(2x2) CuMn Ordered Surface Alloy

A. Kimura; T. Kanbe; T. Xie; M. Taniguchi; S. Qiao; T. Muro; S. Imada; S. Suga

doi:10.1143/JJAP.42.4692

Soft X-ray Magnetic Circular Dichroism of c(2x2) CuMn Ordered Surface Alloy

Materials Science 2009-11-10 v1

Authors: A. Kimura , T. Kanbe , T. Xie , M. Taniguchi , S. Qiao , T. Muro , S. Imada , S. Suga

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Abstract

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.

Keywords

XMCD surface alloy CuMn ferromagnetic state Mn 3d states

Cite

@article{arxiv.cond-mat/0301114,
  title  = {Soft X-ray Magnetic Circular Dichroism of c(2x2) CuMn Ordered Surface Alloy},
  author = {A. Kimura and T. Kanbe and T. Xie and M. Taniguchi and S. Qiao and T. Muro and S. Imada and S. Suga},
  journal= {arXiv preprint arXiv:cond-mat/0301114},
  year   = {2009}
}

Comments

REVTeX, 3pages, 3figures. To appear in Jpn. J. Appl. Phys. Vol.42 (2003)

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