# Effects of Granularity on Magnetic Field Dependent Microwave Response and Surface Degradation in Thin Films of $YBa_2Cu_3O_{7-\delta}$

Rastogi, Amit and Apte, PR and Pinto, R and Hegde, MS and Bhat, SV (1996) Effects of Granularity on Magnetic Field Dependent Microwave Response and Surface Degradation in Thin Films of $YBa_2Cu_3O_{7-\delta}$. In: Solid State Communications, 98 (1). pp. 77-81.

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## Abstract

The magnetic field dependent microwave power loss in thin films of $YBa_2Cu_3O_{7-\delta}$ is analysed using the technique of non-resonant microwave absorption. The loss is correlated to the surface quality, specifically to the granularity of the film as determined by scanning electron microscopy and atomic force microscopy. We also observe that a granular surface is sensitive to degradation under aqueous attacks.

Item Type: Journal Article Copyright of this article belongs to Elsevier. Superconductors;Thin films;Laser processing;Scanning electron microscopy;Atomic force microscopy;Atomic force microscopy;Non-resonant microwave absorption Division of Physical & Mathematical Sciences > Physics 14 Dec 2006 19 Sep 2010 04:33 http://eprints.iisc.ernet.in/id/eprint/9142