Detecting Induced p±ip Pairing at the Al-InAs Interface with a Quantum Microwave Circuit.

@article{Phan2021DetectingIP,
  title={Detecting Induced p±ip Pairing at the Al-InAs Interface with a Quantum Microwave Circuit.},
  author={Dang-Minh Phan and Jorden Senior and A. V. Ghazaryan and Mehdi Hatefipour and William M. Strickland and Javad Shabani and Maksym Serbyn and Andrew P. Higginbotham},
  journal={Physical review letters},
  year={2021},
  volume={128 10},
  pages={
          107701
        }
}
Superconductor-semiconductor hybrid devices are at the heart of several proposed approaches to quantum information processing, but their basic properties remain to be understood. We embed a two-dimensional Al-InAs hybrid system in a resonant microwave circuit, probing the breakdown of superconductivity due to an applied magnetic field. We find a fingerprint from the two-component nature of the hybrid system, and quantitatively compare with a theory that includes the contribution of intraband p… 

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References

SHOWING 1-10 OF 31 REFERENCES

Experimental measurements of effective mass in near-surface InAs quantum wells

Near-surface indium arsenide quantum wells have recently attracted a great deal of interest since they can be interfaced epitaxially with superconducting films and have proven to be a robust platform

Spin splitting in narrow InAs quantum wells with In0.75Ga0.25As barrier layers

Using two independent magnetotransport experiments, i.e., thermal activation and the coincidence method in tilted fields, we determine the g factor in a two-dimensional electron system in a 4-nm-wide

Quantized conductance doubling and hard gap in a two-dimensional semiconductor–superconductor heterostructure

The hard-gap semiconductor–superconductor system demonstrated here is amenable to top-down processing and provides a new avenue towards low-dissipation electronics and topological quantum systems.

Strongly disordered TiN and NbTiN s-wave superconductors probed by microwave electrodynamics.

A gradual evolution of the electromagnetic response with disorder is found, deviating from BCS theory, for both materials, which can be understood as due to changes in the quasiparticle density of states, induced by the short elastic scattering length.

Effects of Gate-Induced Electric Fields on Semiconductor Majorana Nanowires

We study the effect of gate-induced electric fields on the properties of semiconductor-superconductor hybrid nanowires which represent a promising platform for realizing topological superconductivity

Field tuning the g factor in InAs nanowire double quantum dots.

Electric and magnetic field tuning can be used to maximize the g-factor difference and in some cases altogether quench the electric-dipole spin resonance response, allowing selective single spin control.

Determination of hole g-factor in InAs/InGaAs/InAlAs quantum wells by magneto-photoluminescence studies

A circularly polarized magneto-photoluminescence (magneto-PL) technique has been applied to investigate the Zeeman effect in InAs/InGaAs/InAlAs quantum wells (QWs) in the Faraday geometry. Structures

Superconductivity in a Strong Spin-Exchange Field

A strong exchange field, such as produced by ferromagnetically aligned impurities in a metal, will tend to polarize the conduction electron spins. If the metal is a superconductor, this will happen

Proximity-induced gap in nanowires with a thin superconducting shell

Coupling a normal metal wire to a superconductor induces an excitation gap in the normal metal. In the absence of disorder, the induced excitation gap is strongly suppressed by finite-size effects if

Pauli Paramagnetism and Superconducting State

The effect of the Pauli param8gnetism on 8 superconducting sm8ll specimen is investigated by the use of the general Gor'kov equation. It is shown that the effect is negligible in a usual specimen but