Electronic Structure and Magnetic Properties of Intermetallic Alloys

• Authors: A. Jezierski , M. Pugacheva , J.A. Morkowski , A. Szajek
• Languages of publication: EN

Abstracts

EN

We present the influence of local ordering on the electronic and magnetic properties of Heusler-type alloys. The band structure and magnetic moments are calculated by ab initio spin-polarized tight binding linear muffin-tin orbital method. The calculated electronic density of states for Pd_{2}TiAl alloy is similar to ultraviolet photoelectron spectroscopy measurements. The self-consistent band calculations showed that the density of states at the Fermi level in Ni_{2}(Nb_{(1-x)}Ti_{x})Sn and Ni_{2}(Nb_{(1-x)}Ta_{x})Sn alloys decreased with the increase in Ti or Ta concentration. The total and local magnetic moments in ordered Rh_{2}TMSn (TM = Mn, Fe, Co, Ni, Cu) and Rh_{2}MnX (X = Al, Ga, In, Ge, Sb, Pb) Heusler-type alloys are calculated. The difference between theoretical and experimental results can be connected to the partial disorder in the samples.

Keywords

EN

71.20.-b; 75.10.Lp

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 1997
• Volume: 91
• Issue: 1
• Pages: 151-159

Dates

published

1997-01

Contributors

author

A. Jezierski

• Institute of Molecular Physics, Polish Academy of Sciences, Smoluchowskiego 17, 60-179 Poznań, Poland

author

M. Pugacheva

• Institute of Molecular Physics, Polish Academy of Sciences, Smoluchowskiego 17, 60-179 Poznań, Poland

author

J.A. Morkowski

• Institute of Molecular Physics, Polish Academy of Sciences, Smoluchowskiego 17, 60-179 Poznań, Poland

author

A. Szajek

• Institute of Molecular Physics, Polish Academy of Sciences, Smoluchowskiego 17, 60-179 Poznań, Poland