Magnetic Behaviour and Electronic Structure of the R_{2}PdSi_{3} (R = Ce, Nd, Tb-Er) Compounds

• Authors: A. Szytuła , M. Hofmann , B. Penc , M. Ślaski , Subham Majumdar , E. Sampathkumaran , A. Zygmunt
• Languages of publication: EN

Abstracts

EN

The magnetic properties including the magnetic structure were determined by magnetometric and neutron diffraction measurements of the polycrystalline samples of R_{2} PdSi_{3} (R = Ce, Nd, Tb-Er). In Ce_{2}PdSi_{3} the Ce moments order below 2.5 K. The Nd magnetic moments in Nd_{2}PdSi_{3} exhibit ferromagnetic ordering below 17 K. In Tb_{2}PdSi_{3}, 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. The 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.

Keywords

EN

71.20.-b; 75.30.Cr; 75.30.Kz; 79.60.-i

Discipline

• 75.30.Cr: Saturation moments and magnetic susceptibilities
• 71.20.-b: Electron density of states and band structure of crystalline solids
• 79.60.-i: Photoemission and photoelectron spectra(for photoelectron spectroscopy, see 87.64.ks in biological physics; 82.80.Pv in chemical analysis)
• 75.30.Kz: Magnetic phase boundaries (including classical and quantum magnetic transitions, metamagnetism, etc.)(for ferroelectric phase transitions, see 77.80.B-; for superconductivity phase diagrams, see 74.25.Dw)

• Journal: Acta Physica Polonica A
• Year: 2000
• Volume: 97
• Issue: 5
• Pages: 823-826

Dates

published

2000-05

Contributors

author

A. Szytuła

• Institute of Physics, Jagiellonian University, Reymonta 4, 30-059 Kraków, Poland

author

M. Hofmann

• Berlin Neutron Scattering Centre, Hahn-Meitner Institute, 14109 Berlin-Wannsee, Germany

author

B. Penc

• Institute of Physics, Jagiellonian University, Reymonta 4, 30-059 Kraków, Poland

author

M. Ślaski

• School of Physics and Space Research, University of Birmingham, Birmingham, UK

author

Subham Majumdar

• Tata Institute of Fundamental Research, Homi Bhabha Road, Colaba, Mumbai 400005, India

author

E. Sampathkumaran

• Tata Institute of Fundamental Research, Homi Bhabha Road, Colaba, Mumbai 400005, India

author

A. Zygmunt

• W. Trzebiatowski Institute of Low Temperatures and Structural Research, Polish Academy of Sciences, Okólna 2, 50-950 Wrocław, Poland

Identifiers

DOI

10.12693/APhysPolA.97.823