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Electronic states in Cu2MnX (X=Al, In, and Sn) Heusler alloy studied by XMCD and multiple scattering calculations
S Uemura1, H Maruyama, N Kawamura
1Department of Physics, Faculty of Science, Okayama University, Japan. uemura@mag.okayama-u.ac.jp
Journal of Synchrotron Radiation
|August 22, 2001
Abstract:
X-ray magnetic circular dichroism (XMCD) has been measured at Mn and Cu K-edge in Cu2MnX (X=Al, In, and Sn) Heusler alloy. The Mn K-edge spectrum shows a dispersion-type profile and the Cu K-edge resembles the Mn spectrum, which suggests that polarization of the p unoccupied bands originates commonly in Mn 3d states. To reproduce the observed spectrum by full multiple scattering calculations. Madelung potential has been taken into account. Charge redistribution is an important factor for the electronic structure in Cu2MnX Heusler alloy.