Superparamagnetic-like ac susceptibility behavior in the partially disordered antiferromagnetic compound Ca3CoRhO6

Sampathkumaran, E. V. ; Niazi, Asad (2002) Superparamagnetic-like ac susceptibility behavior in the partially disordered antiferromagnetic compound Ca3CoRhO6 Physical Review B: Condensed Matter and Materials Physics, 65 (18). 180401_1-180401_3. ISSN 1098-0121

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Official URL: http://prb.aps.org/abstract/PRB/v65/i18/e180401

Related URL: http://dx.doi.org/10.1103/PhysRevB.65.180401

Abstract

We report the results of dc and ac magnetization measurements as a function of temperature (1.8-300 K) for the spin-chain compound, Ca3CoRhO6, which has been recently reported to exhibit a partially disordered antiferromagnetic (PDAF) structure in the range 30-90 K and spin-glass freezing below 30 K. We observe an unexpectedly large frequency dependence of ac susceptibility in the T range 30-90 K, typical of superparamagnets. In addition, we find that there is no difference in the isothermal remanent magnetization behavior for the two regimes below 90 K. These findings call for more investigations to understand the magnetism of this compound.

Item Type:Article
Source:Copyright of this article belongs to The American Physical Society.
ID Code:45646
Deposited On:29 Jun 2011 03:27
Last Modified:29 Jun 2011 03:27

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