E. B. Askerov, N. T. Dang, A. I. Beskrovnyi, A. I. Madadzada, D. I. Ismailov, R. N. Mehdiyeva, S. H. Jabarov, E. M. Kerimova, “Magnetic structure of TlFeS$_2$ and TlFeSe$_2$ chalcogenides”, Fizika i Tekhnika Poluprovodnikov, 2015, Volume 49, Issue 7,Pages 899

This article is cited in 15 papers

Electronic properties of semiconductors

Magnetic structure of TlFeS$_2$ and TlFeSe$_2$ chalcogenides

E. B. Askerov^ab, N. T. Dang^c, A. I. Beskrovnyi^a, A. I. Madadzada^ad, D. I. Ismailov^d, R. N. Mehdiyeva^b, S. H. Jabarov^de, E. M. Kerimova^d

^a Joint Institute for Nuclear Research, Dubna, Moscow region
^b Institute of radiation problems, ANAS
^c Institute of Research and Development, Duy Tan University, 550000 Da Nang, Viet Nam
^d Institute of Physics Azerbaijan Academy of Sciences
^e Bayerisches Geoinstitut, Universitet Bayreuth, D-95440 Bayreuth, Germany

Abstract: The crystal and magnetic structures of TlFeS$_2$ and TlFeSe$_2$ chalcogenides are studied by neutron diffraction in the temperature range 10–300 K. The investigated compounds feature monoclinic crystal symmetry with the $C2/m$ space group. Antiferromagnetic ordering occurs in TlFeS$_2$ and TlFeSe$_2$ at the Néel temperature $T_\mathrm{N}$ = 210(5) and 295(5) K, respectively. The temperature dependences of magnetic moments, Fe–Fe bond lengths, and unit-cell volume are established. The coefficients of thermal expansion for the paramagnetic and antiferromagnetic phases are calculated.

Received: 19.08.2014
Accepted: 23.09.2014