Magnetic properties of chain antiferromagnets RbFeSe2, TlFeSe2, and TlFeS2

Seidov Z.; Krug Von Nidda Hans Albrecht; Tsurkan Vladimir; Filippova Irina; Tagirov Lenar; Loidl Alois

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2018-10-05 21:37

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SEIDOV, Z., KRUG VON NIDDA, Hans Albrecht, TSURKAN, Vladimir, FILIPPOVA, Irina, TAGIROV, Lenar, LOIDL, Alois. Magnetic properties of chain antiferromagnets RbFeSe2, TlFeSe2, and TlFeS2. In: Bulletin of the Russian Academy of Sciences: Physics, 2017, nr. 7(81), pp. 885-887. ISSN 1062-8738. DOI: https://doi.org/10.3103/S1062873817070267

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Bulletin of the Russian Academy of Sciences: Physics

Numărul 7(81) / 2017 / ISSN 1062-8738 /ISSNe 1934-9432

Magnetic properties of chain antiferromagnets RbFeSe₂, TlFeSe₂, and TlFeS₂

DOI:https://doi.org/10.3103/S1062873817070267

Pag. 885-887

Seidov Z.¹², Krug Von Nidda Hans Albrecht¹, Tsurkan Vladimir¹³, Filippova Irina³, Loidl Alois¹, Tagirov Lenar⁴

¹ University of Augsburg,
² Institute of Physics, Azerbaijan National Academy of Sciences,
³ Institute of Applied Physics, Academy of Sciences of Moldova,
⁴ Academy of Sciences, Kazan

Disponibil în IBN: 19 februarie 2018

Rezumat

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 T_N = 248, 290, and 196 K, respectively. Their magnetic moments are oriented perpendicular to the axes of the chains of FeCh₄ tetrahedra.