Magnetic Properties of Layer-Type Compounds TlGdS_{2} and TlGdSe_{2}

• Authors: M. Duczmal , L. Pawlak , S. Pokrzywnicki
• Languages of publication: EN

Abstracts

EN

Ternary thallium lanthanide dichalcogenides TlLnX_{2} (X = S, Se, or Te; Ln = lanthanide, except Ce and Pr) crystallize in the rhombohedral structure of α-NaFeO_{2} type ($R\overline{3}m$). Their crystal lattice consists of the layers of Ln^{3+} ions separated by three layers of the non-magnetic ions (-Ln-X-Tl-X-Ln-). The magnetization was measured in the field range 0-14 T. The molecular field constants λ_{m} were estimated by fitting the Brillouin function to the experimental magnetization plots. The difference between the λ_{m} values for the thallium gadolinium sulphide and the selenide corresponds to the different character of Gd-S and Gd-Se bonds and gives rise to the different J_{1} and J_{2} exchange integrals.

Keywords

EN

75.50.Ee; 75.30.Cr

Discipline

• 75.30.Cr: Saturation moments and magnetic susceptibilities
• 75.50.Ee: Antiferromagnetics

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2000
• Volume: 97
• Issue: 5
• Pages: 839-842

Dates

published

2000-05

Contributors

author

M. Duczmal

• Wrocław University of Technology, Department of Chemistry, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland

author

L. Pawlak

• Wrocław University of Technology, Department of Chemistry, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland

author

S. Pokrzywnicki

• Institute of Mathematics, Physics and Chemistry, Technical University of Opole, Luboszycka 7, 45-036 Opole, Poland

Identifiers

DOI

10.12693/APhysPolA.97.839