Study of Energy Dissipation in the Mixed-State YBa2Cu3O7-δ Superconductor with Partially Deoxygenated Structures
1Photovoltaic Technologies Laboratory, Vilnius Gediminas Technical University, Sauletekio av. 3, LT-10257 Vilnius, Lithuania.
Materials (Basel, Switzerland)
|June 24, 2022
Summary
Energy dissipation in superconductors is reduced by controlling vortex motion using artificial structures in Yttrium Barium Copper Oxide (YBCO) devices. These structures influence vortex behavior, enabling better performance in electronics and optoelectronics.
Area of Science:
- Condensed Matter Physics
- Materials Science
Background:
- Vortex motion in superconductors causes energy dissipation, limiting device applications.
- Understanding and controlling vortex dynamics is crucial for advancing superconductor technology.
Purpose of the Study:
- To investigate energy dissipation in Yttrium Barium Copper Oxide (YBCO) devices with engineered structures.
- To explore the control of vortex motion via magnetic interactions and structural configurations.
Main Methods:
- Fabrication of YBCO devices with partially deoxygenated structures.
- Analysis of current-voltage characteristics at high reduced temperatures (0.94 ≤ T/Tc ≤ 0.98).
- Investigating magnetic interactions between vortices and structural elements.
Main Results:
- Observed voltage steps in current-voltage characteristics attributed to controlled vortex motion.
- Demonstrated influence of structural shape and oxygen distribution on vortex dynamics.
- Magnetic interactions between structures and vortices were shown to affect dissipation.
Conclusions:
- Artificial structures can effectively control vortex motion in mixed-state YBCO superconductors.
- Tailoring structure configuration and oxygen profiles offers a method to manage energy dissipation.
- Findings highlight potential for improved superconductor-based electronics and optoelectronics.
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