Fabrication and characterization of MgB₂ films by electrodeposition and post annealing

Authors

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