Fabrication and characterization of MgB₂ films by electrodeposition and post annealing

Authors

Glenda De Los Reyes ⋅ PH Department of Mathematics and Physics, University of Santo Tomas
Melanie David ⋅ PH Physics Department, De La Salle University
Gil Nonato Santos ⋅ PH Physics Department, De La Salle University
Reuben Quiroga ⋅ PH Physics Department, De La Salle University

Abstract

Superconducting MgB₂ films were prepared using magnesium chloride hexahydrate and boric acid electrolytes, by electrochemical deposition and post annealing. Electrochemical deposition cell was composed of Ag plate as working electrode, Ag/Ag⁺ as reference electrode, and Pt as counter electrode. Scanning electron microscopy showed the presence of hexagonal- shaped MgB₂ crystallites and MgO phases in all the samples. X-ray diffraction analysis revealed four peaks of MgB₂. The resistivity-temperature measurement showed the effect of annealing time on the critical transition temperature of the samples. The T_c of 39 K was observed in the films annealed at 300°C for 120 minutes while T_c of 33 K and 30 K were observed in samples annealed at 300°C for 90 minutes.

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Issue

2004: Proceedings of the 22nd Samahang Pisika ng Pilipinas Physics Congress

Article ID

SPP-2004-PA-26

Section

Poster Session PA

Published

2004-10-25

How to Cite

[1]

G De Los Reyes, M David, GN Santos, and R Quiroga, Fabrication and characterization of MgB2 films by electrodeposition and post annealing, Proceedings of the Samahang Pisika ng Pilipinas 22, SPP-2004-PA-26 (2004). URL: https://proceedings.spp-online.org/article/view/SPP-2004-PA-26.