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Updated: Aug 5, 2026
10:26
Fabrication and Characterization of Superconducting Resonators
Published on: May 21, 2016
Super-resonant Fabry-Pérot transport in tilted Dirac surface states
Neeraj Singh1,2, Manisha Arora3, Neetu Agrawal1
1Department of Physics, University of Allahabad, Prayagraj 211002, India.
Summary
We found that tilting Dirac surface states with a magnetic field enables super-resonant electron transport. This enhances transmission and conductance oscillations by aligning resonance conditions across multiple modes.
Area of Science:
- Condensed Matter Physics
- Materials Science
- Quantum Mechanics
Background:
- Conventional Dirac systems exhibit mode-selective Fabry-Pérot resonances dependent on transverse momentum.
- Tilted Dirac surface states offer unique electronic properties for transport phenomena.
Purpose of the Study:
- To investigate coherent electron transport in tilted Dirac surface states.
- To explore the impact of in-plane magnetic field-induced tilt on transport properties.
- To understand the mechanisms behind super-resonant transport.
Main Methods:
- Utilizing single- and double-barrier structures.
- Inducing tilt in Dirac surface states with an in-plane magnetic field.
- Analyzing electron transport phenomena and conductance oscillations.
Main Results:
- The tilt suppresses transverse momentum dependence of Fabry-Pérot resonances.
- A super-resonant transport regime with enhanced transmission is achieved.
- Pronounced conductance oscillations are observed due to simultaneous resonance alignment.
Conclusions:
- The tilt enables a broad alignment of resonance conditions across transverse modes.
- Enhanced mode density drives super-resonance in single-barrier structures.
- Phase-coherent mode selection explains super-resonance in double-barrier structures.
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