Magnetic behavior of the spin-chain compounds Ca3CuIrO6 and Ca3CuRhO6

Rayaprol, S. ; Sampathkumaran, E. V. (2005) Magnetic behavior of the spin-chain compounds Ca3CuIrO6 and Ca3CuRhO6 Physical Review B: Condensed Matter and Materials Physics, 71 (9). 094403_1-094403_5. ISSN 1098-0121

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Official URL: http://prb.aps.org/abstract/PRB/v71/i9/e094403

Related URL: http://dx.doi.org/10.1103/PhysRevB.71.094403

Abstract

The spin-chain compounds, Ca3CuIrO6 and Ca3CuRhO6, crystallizing in a K4CdCl6-derived monoclinic structure, are investigated by ac and dc magnetization, isothermal remnant magnetization, as well as heat-capacity measurements. The results reveal the existence of a magnetic ordering in the vicinity of 15 K for both the compounds, but the transition appears to be of a complex nature. The existence of a spin-glass component is strongly indicated by the results. We propose that topological effects play a role on magnetism of these compounds. The magnetic properties for these two compounds are interestingly similar as though isoelectronic chemical substitution at the octahedral coordination site does not significantly interfere in the magnetic exchange process.

Item Type:Article
Source:Copyright of this article belongs to The American Physical Society.
ID Code:45739
Deposited On:29 Jun 2011 03:31
Last Modified:29 Jun 2011 03:31

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