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artículo con referato
"Calculation of the magnetorresistance of YMn2Ge2 and LaMn2Ge2"
J. Milano and A.M. Llois
Phys. Status Solidi B 220(1) (2000) 409-412
We have calculated the diffusive conductivity and ballistic conductance of the layered compounds YMn2Ge2 and LaMn2Ge2. For YMn2Ge2 we obtain a negative band contribution to the giant magnetoresistance. For LaMn2Ge2 we show that the band contribution can already explain the experimentally observed large positive magnetoresistance if a nearly ferromagnetic structure is considered.
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