TY - JOUR
T1 - Electronic structure and magnetic exchange coupling in ferromagnetic full Heusler alloys
AU - Kurtulus, Yasemin
AU - Dronskowski, Richard
AU - Samolyuk, German D.
AU - Antropov, Vladimir P.
PY - 2005/1
Y1 - 2005/1
N2 - Density-functional studies of the electronic structures and exchange interaction parameters have been performed for a series of ferromagnetic full Heusler alloys of general formula Co 2MnZ (Z=Ga, Si, Ge, Sn), Rh 2MnZ (Z=Ge, Sn, Pb), Ni 2MnSn, Cu 2MnSn, and Pd 2MnSn, and the connection between the electronic spectra and the magnetic interactions have been studied. Different mechanisms contributing to the exchange coupling are revealed. The band dependence of the exchange parameters, their dependence on volume and valence electron concentration have been thoroughly analyzed within the Green function technique. The difference between the exact adiabatic approach and the long-wavelength approximation is discussed.
AB - Density-functional studies of the electronic structures and exchange interaction parameters have been performed for a series of ferromagnetic full Heusler alloys of general formula Co 2MnZ (Z=Ga, Si, Ge, Sn), Rh 2MnZ (Z=Ge, Sn, Pb), Ni 2MnSn, Cu 2MnSn, and Pd 2MnSn, and the connection between the electronic spectra and the magnetic interactions have been studied. Different mechanisms contributing to the exchange coupling are revealed. The band dependence of the exchange parameters, their dependence on volume and valence electron concentration have been thoroughly analyzed within the Green function technique. The difference between the exact adiabatic approach and the long-wavelength approximation is discussed.
UR - http://www.scopus.com/inward/record.url?scp=16844387098&partnerID=8YFLogxK
U2 - 10.1103/PhysRevB.71.014425
DO - 10.1103/PhysRevB.71.014425
M3 - Article
AN - SCOPUS:16844387098
SN - 1098-0121
VL - 71
JO - Physical Review B - Condensed Matter and Materials Physics
JF - Physical Review B - Condensed Matter and Materials Physics
IS - 1
M1 - 014425
ER -