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Electric control of superconducting transition through a spin-orbit coupled interface
Jabir Ali Ouassou1, Angelo Di Bernardo2, Jason W A Robinson2
1Department of Physics, NTNU, Norwegian University of Science and Technology, N-7491 Trondheim, Norway.
Scientific Reports
|July 19, 2016
Summary
We theoretically show all-electric control of superconductivity using a novel device. Electric gating tunes the superconducting transition temperature by manipulating spin-orbit coupling in semiconducting layers.
Area of Science:
- Condensed Matter Physics
- Spintronics
- Materials Science
Background:
- Superconductivity is a quantum mechanical phenomenon where electrical resistance vanishes.
- Controlling superconductivity is crucial for developing advanced electronic devices.
- Spintronics aims to utilize electron spin for information processing.
Purpose of the Study:
- To theoretically demonstrate all-electric control of the superconducting transition temperature.
- To explore the use of spin-orbit coupling in modulating superconductivity.
- To propose a novel device architecture for superconductivity control.
Main Methods:
- Theoretical analysis using analytical calculations.
- Numerical simulations to model device behavior.
- Investigating the interplay between superconductivity, ferromagnetism, and spin-orbit coupling.
Main Results:
- All-electric control of the superconducting transition temperature is achievable.
- Electric gating effectively modifies the ratio of Rashba to Dresselhaus spin-orbit coupling.
- The proposed device architecture enables tunable superconductivity.
Conclusions:
- This work presents a new method for controlling superconductivity via electric fields.
- The findings open avenues for novel spintronic devices leveraging tunable superconductivity.
- The theoretical framework provides a basis for experimental realization.
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