Rare earth transition metal sulfides, LnMS3

Murugesan, T. ; Ramesh, S. ; Gopalakrishnan, J. ; Rao, C. N. R. (1981) Rare earth transition metal sulfides, LnMS3 Journal of Solid State Chemistry, 38 (2). pp. 165-172. ISSN 0022-4596

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Official URL: http://linkinghub.elsevier.com/retrieve/pii/002245...

Related URL: http://dx.doi.org/10.1016/0022-4596(81)90031-1


Ternary rare earth transition metal sulfides LnMS3 with Ln = La, Nd, and Gd, and M = V and Cr; as well as Ln = La and M = Mn, Fe, Co, and Ni have been prepared and characterized. The vanadium and chromium sulfides crystallize in a monoclinic layer structure isotypic with LaCrS3, while the other LnMS3 sulfides crystallize in a hexagonal structure. Chemical shifts of the metal K-absorption edge and XPS binding energies of core levels indicate that the transition metal is trivalent in the V and Cr sulfides, while it is divalent in the Mn, Fe, Co, and Ni sulfides. Electrical and magnetic properties of the sulfides are discussed in terms of their structures and the electronic configurations of the transition metal ions.

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