Paper Title:

New Ferromagnetic Chromium Chalcogenides, ACr5Te8 (A = K, Cs and Rb)

Periodical Solid State Phenomena (Volume 170)
Main Theme Solid Compounds of Transition Elements
Edited by J.-L. Bobet, B. Chevalier and D. Fruchart
Pages 17-20
DOI 10.4028/www.scientific.net/SSP.170.17
Citation Satoshi Yamazaki et al., 2011, Solid State Phenomena, 170, 17
Online since April, 2011
Authors Satoshi Yamazaki, Yutaka Ueda
Keywords ACr5Te8, Ferromagnet, New Chromium Tellurides, Structure, Synthesis
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Abstract

New pseudo-hollandite chromium tellurides, ACr5Te8 (A = K, Cs and Rb), have been synthesized. KCr5Te8 is isostructural (type-A; space group C2/m) to ACr5S8, while RbCr5Te8 and CsCr5Te8 crystallize in a different structure (type-B; space group C2/m). All compounds show ferromagnetic transition, in contrast to antiferromagnetic transition in pseudo-hollandite chromium sulfides and selenides. The ferromagnetism of ACr5Te8 would be related to long Cr-Cr distances, band structure or itinerancy.