Electrical Properties of YBaCuO Ceramic Oxides Using Electrodeposit

Area of Science:

• Materials Science
• Condensed Matter Physics
• Electrical Engineering

Background:

• Superconducting thin films are crucial for advanced electronic applications.
• Fabrication methods significantly influence film properties like critical current density and morphology.
• Optimizing deposition techniques is key to achieving high-performance superconducting materials.

Purpose of the Study:

• To investigate the effect of a subsidiary alternating electric field on superconducting thin film properties.
• To compare the performance of films fabricated with alternating versus constant electric fields.
• To determine optimal low-voltage, commercial-frequency conditions for enhanced film deposition.

Main Methods:

• Thin film deposition using an alternating voltage of 60 Hz and 25-120 V/cm.
• Fabrication of superconducting thin films under subsidiary electric field conditions.
• Characterization of surface morphology, critical temperature (Tc, zero), and critical current density (Jc).

Main Results:

• The alternating electric field resulted in uniform surface morphology with fewer voids and cracks.
• Achieved a critical temperature (Tc, zero) of 90 K and a critical current density of 3,320 A/cm².
• Demonstrated a significant improvement in critical current density (2,250–2,319 A/cm²) compared to constant electric field methods.

Conclusions:

• Subsidiary alternating electric fields offer a superior method for fabricating high-performance superconducting thin films.
• The use of commercial frequency and low electric fields presents a more efficient and practical approach.
• This technique enhances both the structural integrity and superconducting characteristics of the films.