Magnetic properties of chain antiferromagnets RbFeSe2, TlFeSe2, and TlFeS2


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Resumo

Single crystals of ternary ion chalcogenides RbFeSe2, TlFeSe2, and TlFeS2 are studied by X-ray diffraction, SQUID magnetometry, and Mössbauer spectroscopy. Common structural units of these chalcogenides are tetrahedra of FeCh4 (chalcogen Ch = Se, S), arranged in chains by sharing an edge. It is found that RbFeSe2, TlFeSe2, and TlFeS2 undergo transition to a collinear antiferromagnetic state below temperatures TN = 248, 290, and 196 K, respectively. Their magnetic moments are oriented perpendicular to the axes of the chains of FeCh4 tetrahedra.

Sobre autores

Z. Seidov

Experimental Physics V, Center for Electronic Correlations and Magnetism; Institute of Physics

Email: ltagirov@mail.ru
Alemanha, Augsburg, 86135; Baku, AZ-1143

H. Krug von Nidda

Experimental Physics V, Center for Electronic Correlations and Magnetism

Email: ltagirov@mail.ru
Alemanha, Augsburg, 86135

V. Tsurkan

Experimental Physics V, Center for Electronic Correlations and Magnetism; Institute of Applied Physics

Email: ltagirov@mail.ru
Alemanha, Augsburg, 86135; Chisinau, MD-20208

I. Filippova

Institute of Applied Physics

Email: ltagirov@mail.ru
Moldova, Chisinau, MD-20208

A. Günther

Experimental Physics V, Center for Electronic Correlations and Magnetism

Email: ltagirov@mail.ru
Alemanha, Augsburg, 86135

A. Najafov

Institute of Physics

Email: ltagirov@mail.ru
Azerbaijão, Baku, AZ-1143

M. Aliyev

Faculty of Solid State Physics

Email: ltagirov@mail.ru
Azerbaijão, Baku, AZ-1148

F. Vagizov

Institute of Physics

Email: ltagirov@mail.ru
Rússia, Kazan, 420008

A. Kiiamov

Institute of Physics

Email: ltagirov@mail.ru
Rússia, Kazan, 420008

L. Tagirov

Institute of Physics; Zavoisky Physicotechnical Institute; Institute of Advanced Studies

Autor responsável pela correspondência
Email: ltagirov@mail.ru
Rússia, Kazan, 420008; Kazan, 420029; Kazan, 420111

T. Gavrilova

Zavoisky Physicotechnical Institute

Email: ltagirov@mail.ru
Rússia, Kazan, 420029

A. Loidl

Experimental Physics V, Center for Electronic Correlations and Magnetism

Email: ltagirov@mail.ru
Alemanha, Augsburg, 86135

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