Probing a spin-glass state in SrRuO3 thin films through higher-order statistics of resistance fluctuations

Daptary, Gopi Nath and Sow, Chanchal and Kumar, Anil PS and Bid, Aveek (2014) Probing a spin-glass state in SrRuO3 thin films through higher-order statistics of resistance fluctuations. In: PHYSICAL REVIEW B, 90 (11).

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Abstract

The complex perovskite oxide SrRuO3 shows intriguing transport properties at low temperatures due to the interplay of spin, charge, and orbital degrees of freedom. One of the open questions in this system is regarding the origin and nature of the low-temperature glassy state. In this paper we report on measurements of higher-order statistics of resistance fluctuations performed in epitaxial thin films of SrRuO3 to probe this issue. We observe large low-frequency non-Gaussian resistance fluctuations over a certain temperature range. Our observations are compatible with that of a spin-glass system with properties described by hierarchical dynamics rather than with that of a simple ferromagnet with a large coercivity.

Item Type:	Journal Article
Publication:	PHYSICAL REVIEW B
Publisher:	AMER PHYSICAL SOC
Additional Information:	Copy right for this article belongs to the AMER PHYSICAL SOC, ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
Department/Centre:	Division of Physical & Mathematical Sciences > Physics
Date Deposited:	28 Nov 2014 05:41
Last Modified:	28 Nov 2014 05:41
URI:	http://eprints.iisc.ac.in/id/eprint/50342

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