PHYSICAL-PROPERTIES OF QUATERNARY MIXED TRANSITION-METAL SULFIDES - ACUFES(2) (A=K, RB, CS)

Authors
OLEDZKA M RAMANUJACHARY KV GREENBLATT M
Citation
M. Oledzka et al., PHYSICAL-PROPERTIES OF QUATERNARY MIXED TRANSITION-METAL SULFIDES - ACUFES(2) (A=K, RB, CS), Materials research bulletin, 31(12), 1996, pp. 1491-1499
Citations number
27
Categorie Soggetti
Material Science
Journal title
Materials research bulletin → ACNP
ISSN journal
00255408
Volume
31
Issue
12
Year of publication
1996
Pages
1491 - 1499
Database
ISI
SICI code
0025-5408(1996)31:12<1491:POQMTS>2.0.ZU;2-H
Abstract
Three quaternary sulfides ACuFeS(2) (A = K, Rb, Cs) with the ThCr2Si2- type structure were prepared from alkali metal carbonate A(2)CO(3), Fe 2O3, and CuO by CS2/N-2 sulfurization. All of the samples show semicon ducting behavior. Magnetic susceptibility data indicate the presence o f localized moment arising from the di- and trivalent iron ions. The s emiconducting properties observed in this system are in contrast to th e metallic behavior predicted by theoretical calculations.