Magnetic properties of Co2Mn1-xFexSi Heusler alloys

Kallmayer, M.; Elmers, H.J.; Balke, B.; Wurmehl, S.; Emmerling, F.; Fecher, G.H.; Felser, C.

doi:10.1088/0022-3727/39/5/S03

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Magnetic properties of Co₂Mn_1-xFexSi Heusler alloys

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引用

Kallmayer, M., Elmers, H., Balke, B., Wurmehl, S., Emmerling, F., Fecher, G., & Felser, C. (2006). Magnetic properties of Co₂Mn_1-xFexSi Heusler alloys. Journal of Physics D: Applied Physics, 39(5), 786-792. doi:10.1088/0022-3727/39/5/S03.

引用: https://hdl.handle.net/11858/00-001M-0000-0018-66B4-C

要旨

Co2Mn1-xFexSi Heusler alloys with Fe concentration x = 0-0.4 as prepared by arc melting show a L2(1) long range order for all Fe concentrations. Magnetic properties of Co2Mn1-xFexSi Heusler alloys were investigated by magnetometry and circular magnetic dichroism. The magnetization of the Fe doped Heusler alloys is in agreement with the Slater-Pauling values expected for half-metallic ferromagnets. Element specific magnetic moments as determined by x-ray absorption using the total electron yield method are in disagreement with theoretical predictions for x = 0 but approach the predicted values as the Fe concentration increases. Surprisingly small Fe concentration increases the magnetic moments of all constituents considerably.