Valence band studies of the RTX (R = Pr, Nd; T = Cu, Ag, Au; X = Ge, Sn) compounds

被引：16

作者：

Szytula, A

Jezierski, A

Penc, B

Fus, D

机构：

[1] Jagiellonian Univ, Inst Phys, PL-30059 Krakow, Poland

[2] Polish Acad Sci, Inst Mol Phys, Poznan, Poland

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2000年 / 222卷 / 1-2期

关键词：

ternary rare earth intermetallics; electronic structure; XPS;

D O I：

10.1016/S0304-8853(00)00528-X

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The valence band in the RTX (R = Pr,Nd; T = Cu, Ag, Au; X = Ge, Sn) compounds was studied by the X-ray photoemission spectroscopy. The XPS data were compared with the ones calculated using the spin-polarized tight binding linear muffin-tin orbital (TB LMTO) method. The obtained results show that the valence bands are determined mainly by the Cu 3d, Ag 4d and Au 5d bands. The calculation of the total energy for two models of the crystal structure: an ordered of the LiGaGe-type and a disordered one of the CaIn2-type indicates that in the RTSn (T = Cu, Ag,Au) compounds the LiGaGe-type structure is stable. Calculated value of the Pr magnetic moment is smaller than that of the free Pr3+ ion value, whereas the Nd magnetic moment is equal to the free Nd3+ ion value. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：47 / 53

页数：7

共 30 条

[1] MAGNETIC AND TRANSPORT STUDIES ON RAGSN (R-RARE EARTH METALS) [J].