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Tuning the Growth of IrO2 on SrTiO3 (100) for Spin-Hall Effect Based Oxide Devices

Bhat, Shwetha G and Koshy, Abraham M and Pittala, Suresh and Kumar, P S Anil (2017) Tuning the Growth of IrO2 on SrTiO3 (100) for Spin-Hall Effect Based Oxide Devices. In: International Conference on Functional Materials, Characterization, Solid State Physics, Power, Thermal and Combustion Energy (FCSPTC), APR 07-08, 2017, INDIA.

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Official URL: http://dx.doi.org/10.1063/1.4990160

Abstract

In this study, growth of (100) oriented IrO2 using pulsed laser ablation technique is explored on (100) oriented SrTiO3 by varying different deposition conditions. We have observed that the texture formation of IrO2 can be tuned by controlling the deposition temperature, oxygen pressure and the repetition rate of the deposition using excimer laser. The best quality of the textured IrO2 thin films were evident from the temperature dependent resistivity exhibiting a typical metallic behavior, with a lowest p of 60 mu Omega.cm at 300 K against a pbun, of 34 mu Omega.cm. Subsequently, the island growth of IrO2 was confirmed from the thickness variation of IrO2 thin films which showed the cross-over of metallic to insulating behavior for thin films of thickness; such as 25 nm.

Item Type: Conference Proceedings
Additional Information: Copy right for the article belong to AMER INST PHYSICS, 2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA
Department/Centre: Division of Physical & Mathematical Sciences > Physics
Depositing User: Id for Latest eprints
Date Deposited: 04 Apr 2018 18:50
Last Modified: 04 Apr 2018 18:50
URI: http://eprints.iisc.ac.in/id/eprint/59494

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