The substitution of vanadium by chromium in thallium pentavanadium octasulfide. Part 3: Magnetic properties
- Univ. of Frankfurt (Germany). Institute for Inorganic Chemistry
- Univ. of Mainz (Germany). Institute for Inorganic and Analytical Chemistry
The investigation of the magnetic properties of the substitution series TlV{sub 5{minus}y}Cr{sub y}S{sub 8}(1{le}y{le}4) revealed a complex magnetic behavior due to the successive formation of Cr{sub 2}-dimers. The Cr atoms within the dimers are antiferromagnetically coupled and with raising Cr content the coupling constant becomes more negative indicating stronger antiferromagnetic exchange interactions. The magnetic behavior is further characterized by a Curie-Weiss like contribution from nearly isolated Cr atoms and a temperature independent paramagnetism (TIP) from delocalized conduction electrons. With increasing substitution of V by Cr the TIP decreases and the magnetic moment per Cr atom increases. In addition, the evaluation of the magnetic susceptibilities gives hints for a preferential occupation of the three different crystallographic sites by the Cr atoms.
- OSTI ID:
- 105962
- Journal Information:
- Materials Research Bulletin, Vol. 30, Issue 9; Other Information: PBD: Sep 1995
- Country of Publication:
- United States
- Language:
- English
Similar Records
Structural and magnetic properties of RMn{sub 2-x}Fe{sub x}D{sub 6} compounds (R=Y, Er; x{<=}0.2) synthesized under high deuterium pressure
Crystal structure and magnetic properties of Pr- and Ti-substituted La{sub 2}RuO{sub 5}