Effect of argon plasma pre-cleaning on thin film quality in the 1064 nm Nd:YAG pulsed laser ablation of Bi₂Sr₂CaCu₂O_8+δ on MgO substrate

Authors

Jeffrey C. de Vero ⋅ PH National Institute of Physics, University of the Philippines Diliman
Wilson O. Garcia ⋅ PH National Institute of Physics, University of the Philippines Diliman
Roland V. Sarmago ⋅ PH National Institute of Physics, University of the Philippines Diliman
Henry J. Ramos ⋅ PH National Institute of Physics, University of the Philippines Diliman

Abstract

MgO (001) single crystal substrates were irradiated with argon plasma prior to thin film deposition. The optimum discharged current of 4.0 mA at 30 minutes exposure time in argon plasma of MgO prior to deposition produce highly c-axis Bi₂Sr₂CaCu₂O_8+δ (Bi-2212) superconducting thin films by 1064 nm Nd:YAG pulsed laser ablation. It was found out that argon plasma cleaning prior to deposition is effective in improving film wettability on MgO substrate. SEM images of the film with treated substrate showed reduction of surface roughness compared to film grown on untreated substrate. XRD measurements on film with plasma cleaned substrates shows improved crystallinity. Resistivity measurements of the film also showed enhancement of critical temperature, Tc.

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Issue

2008: Proceedings of the 26th Samahang Pisika ng Pilipinas Physics Congress

Article ID

SPP-2008-5B-01

Section

Interdisciplinary Studies

Published

2008-10-22

How to Cite

[1]

JC de Vero, WO Garcia, RV Sarmago, and HJ Ramos, Effect of argon plasma pre-cleaning on thin film quality in the 1064 nm Nd:YAG pulsed laser ablation of Bi2Sr2CaCu2O8+δ on MgO substrate, Proceedings of the Samahang Pisika ng Pilipinas 26, SPP-2008-5B-01 (2008). URL: https://proceedings.spp-online.org/article/view/SPP-2008-5B-01.