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Title: Magnetic structure of TlFeS{sup 2} and TlFeSe{sup 2} chalcogenides

The crystal and magnetic structures of TlFeS{sup 2} and TlFeSe{sup 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{sup 2} and TlFeSe{sup 2} at the Néel temperature T{sup 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.
Authors:
 [1] ;  [2] ; ;  [1] ;  [3] ;  [4] ;  [3] ;  [5]
  1. Joint Institute for Nuclear Research (Russian Federation)
  2. Duy Tan University, Institute of Research and Development (Viet Nam)
  3. National Academy of Sciences of Azerbaijan, Abdullaev Institute of Physics (Azerbaijan)
  4. National Academy of Sciences of Azerbaijan, Institute of Radiation Problems (Azerbaijan)
  5. Universitet Bayreuth, Bayerisces Geoinstitut (Germany)
Publication Date:
OSTI Identifier:
22469843
Resource Type:
Journal Article
Resource Relation:
Journal Name: Semiconductors; Journal Volume: 49; Journal Issue: 7; Other Information: Copyright (c) 2015 Pleiades Publishing, Ltd.; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; ANTIFERROMAGNETISM; BOND LENGTHS; CRYSTALS; IRON SELENIDES; MAGNETIC MOMENTS; MONOCLINIC LATTICES; NEEL TEMPERATURE; NEUTRON DIFFRACTION; PARAMAGNETISM; TEMPERATURE DEPENDENCE; THALLIUM COMPOUNDS; THERMAL EXPANSION