Magnetic behaviour and electronic structure of the R2PdSi3 (R = Ce, Nd, Tb-Er) compounds

被引:1
|
作者
Szytula, A
Hofmann, M
Penc, B
Slaski, M
Majumdar, S
Sampathkumaran, EV
Zygmunt, A
机构
[1] Jagiellonian Univ, Inst Phys, PL-30059 Krakow, Poland
[2] Hahn Meitner Inst Kernforsch Berlin GmbH, Berlin Neutron Scattering Ctr, D-14109 Berlin, Germany
[3] Univ Birmingham, Sch Phys & Space Res, Birmingham B15 2TT, W Midlands, England
[4] Tata Inst Fundamental Res, Bombay 400005, Maharashtra, India
[5] Polish Acad Sci, W Trzebiatowski Inst Low Temp & Struct Res, PL-50950 Wroclaw, Poland
关键词
D O I
10.12693/APhysPolA.97.823
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
The magnetic properties including the magnetic structure were determined by magnetometric and neutron diffraction measurements of the polycrystalline samples of R2PdSi3 (R = Ce, Nd, Tb-Er). In Ce2PdSi3 the Ce moments order below 2.5 K. The Nd magnetic moments in Nd2PdSi3 exhibit ferromagnetic ordering below 17 K. In Tb2PdSi3, a complex situation is observed: in the temperature range from 1.5 K to (T-N = 25 K), there is a coexistence of a ferromagnetic spiral (about 75% of the magnetic moment) and a spin-glass (about 25%). For the Dy, Ho, and Er compounds, below T-N (7.5, 8, and 7 K respectively), sinusoidally modulated structures are observed,he valence band and the core level photoemissions of 4d of rare-earth metal, 3d Pd, 2s and 2p Si were investigated by X-ray photoemission spectroscopy measurements.
引用
收藏
页码:823 / 826
页数:4
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