Band Calculation of Cu_2MnAl

元データ 1978-10-15 社団法人日本物理学会


The energy bands of an ordered alloy Cu.MnA.l are calculated by the symme-frized augmented plane wave (SAPW) ntethod. The E(k) curves and the densities-of-states curves arc obtained. For tap-spin (minority) electt'ons, the density-of-states curve has two peaks. They are separated by a wide Ic>w density region inwhich the Fermi level is situated. The upper peak arises fromn the #-bands of Mnand the other one from those of Cu. On the other hand, for clown-spin (majority)electrons, the state-density cturves of #-bands of Cu and Pdn have two peaksrespectively and they are overlapped with each<cther. Those bands are almostoccupied. The main carrier of' the magnetic moment is Mn atom. The magneticmoment of' the alloy has been estinaated to be 3.'73 jt. per ntolecule, which is inagreement with the measured values 3.6-4.12 p..


ISHIDA Shoji Department of Physics, Faculty of Science, Kagoshima University
Ishida Junji Department Of Physics Faculty Of Science Kagoshima University
ASANO Setsuro College of Arts and Sciences, University of Tokyo
Ishida Shoji Department Of Physics Faculty Of Science Kagoshima University
Yamashita Jiro College Of Humanities And Science Nihon University
Ishida Shuichi Division Of Cardiovascular Medicine Department Of Internal Medicine Ohmori Hospital Toho University
Ishida Junji Department of Physics,Faculty of Science,Kagoshima University
Yamashita Jiro Gifu Die & Mold Engineering Co., Ltd.