Surface modifications in single crystal surfaces of YBa2Cu3O7-delta upon high energy ion irradiation

Lakhani, A and Ganesan, Vijaya and Elizabeth, Suja and Bhat, HL and Singh, R and Kanjilal, D (2006) Surface modifications in single crystal surfaces of YBa2Cu3O7-delta upon high energy ion irradiation. In: Indo German Workshop on Synthesis and Modifications of Nano-Structured Materials by Energetic Ion Beams,, Feb 20-24, 2005, New Delhi, India, pp. 120-123.

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Abstract

Atomic force microscopy investigations on swift heavy ion (200 MeV An) irradiated surfaces of a high T-c single crystal YBa2Cu3O7-delta are presented. Results obtained revealed an ion-induced erosion/sputtering clearly confirming our earlier observation on grain boundary dominated thin films. Apart from sputtering, notable effects were seen with many defect structures like dikes/hillocks surrounded by craters, dikes, holes, pearl like structures and ripple formation of sub-micron undulations, all in one crystal. Results are discussed in the light of co-operative phenomena of material re-distribution mechanism related to mass transfer and crater formations.

Item Type:	Conference Paper
Publication:	NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS
Publisher:	Elsevier Science
Additional Information:	Copyright of this article belongs to Elsevier Science.
Keywords:	SHI induced sputtering; erosion; craters and ripple formation; irradiation effects in YBCO; AFM.
Department/Centre:	Division of Physical & Mathematical Sciences > Physics
Date Deposited:	16 Sep 2010 10:52
Last Modified:	19 Sep 2010 06:15
URI:	http://eprints.iisc.ac.in/id/eprint/31789

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