Multiterminal transport spectroscopy of subgap states in Coulomb-blockaded superconductors

Research output: Contribution to journal › Journal article › Research › peer-review

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Multiterminal transport spectroscopy of subgap states in Coulomb-blockaded superconductors. / Souto, Rubén Seoane; Wauters, Matteo M.; Flensberg, Karsten; Leijnse, Martin; Burrello, Michele.

In: Physical Review B, Vol. 106, No. 23, 235425, 2022.

Research output: Contribution to journal › Journal article › Research › peer-review

Harvard

Souto, RS, Wauters, MM, Flensberg, K, Leijnse, M & Burrello, M 2022, 'Multiterminal transport spectroscopy of subgap states in Coulomb-blockaded superconductors', Physical Review B, vol. 106, no. 23, 235425. https://doi.org/10.1103/PhysRevB.106.235425

APA

Souto, R. S., Wauters, M. M., Flensberg, K., Leijnse, M., & Burrello, M. (2022). Multiterminal transport spectroscopy of subgap states in Coulomb-blockaded superconductors. Physical Review B, 106(23), [235425]. https://doi.org/10.1103/PhysRevB.106.235425

Vancouver

Souto RS, Wauters MM, Flensberg K, Leijnse M, Burrello M. Multiterminal transport spectroscopy of subgap states in Coulomb-blockaded superconductors. Physical Review B. 2022;106(23). 235425. https://doi.org/10.1103/PhysRevB.106.235425

Author

Souto, Rubén Seoane ; Wauters, Matteo M. ; Flensberg, Karsten ; Leijnse, Martin ; Burrello, Michele. / Multiterminal transport spectroscopy of subgap states in Coulomb-blockaded superconductors. In: Physical Review B. 2022 ; Vol. 106, No. 23.

Bibtex

@article{6a6f5ec5efe74ae09eff44d2064076e0,

title = "Multiterminal transport spectroscopy of subgap states in Coulomb-blockaded superconductors",

abstract = "Subgap states are responsible for the low-bias transport features of hybrid superconducting-semiconducting devices. Here we analyze the local and nonlocal differential conductance of Coulomb-blockaded multiterminal superconducting islands that host subgap states with different spatial structures. The emerging patterns of their transport spectroscopy are used to characterize the possible topological nature of these devices and offer the possibility of controlling their transport properties. We develop a next-to-leading order master equation to describe the multiterminal transport in superconductors with both strong Coulomb interactions and multiple subgap states, coupled with metallic leads. We show that the nonlocal differential conductance characterizes the spatial extension of the subgap states and signals the presence of degenerate bound states with a finite support on different parts of the device. Additionally, it displays sharp sign changes as a function of the induced charge of the superconductor, signaling energy crossings among its lowest excited states.",

author = "Souto, {Rub{\'e}n Seoane} and Wauters, {Matteo M.} and Karsten Flensberg and Martin Leijnse and Michele Burrello",

note = "Publisher Copyright: {\textcopyright} 2022 authors. Published by the American Physical Society.",

year = "2022",

doi = "10.1103/PhysRevB.106.235425",

language = "English",

volume = "106",

journal = "Physical Review B",

issn = "2469-9950",

publisher = "American Physical Society",

number = "23",

}

RIS

TY - JOUR

T1 - Multiterminal transport spectroscopy of subgap states in Coulomb-blockaded superconductors

AU - Souto, Rubén Seoane

AU - Wauters, Matteo M.

AU - Flensberg, Karsten

AU - Leijnse, Martin

AU - Burrello, Michele

PY - 2022

Y1 - 2022

N2 - Subgap states are responsible for the low-bias transport features of hybrid superconducting-semiconducting devices. Here we analyze the local and nonlocal differential conductance of Coulomb-blockaded multiterminal superconducting islands that host subgap states with different spatial structures. The emerging patterns of their transport spectroscopy are used to characterize the possible topological nature of these devices and offer the possibility of controlling their transport properties. We develop a next-to-leading order master equation to describe the multiterminal transport in superconductors with both strong Coulomb interactions and multiple subgap states, coupled with metallic leads. We show that the nonlocal differential conductance characterizes the spatial extension of the subgap states and signals the presence of degenerate bound states with a finite support on different parts of the device. Additionally, it displays sharp sign changes as a function of the induced charge of the superconductor, signaling energy crossings among its lowest excited states.

AB - Subgap states are responsible for the low-bias transport features of hybrid superconducting-semiconducting devices. Here we analyze the local and nonlocal differential conductance of Coulomb-blockaded multiterminal superconducting islands that host subgap states with different spatial structures. The emerging patterns of their transport spectroscopy are used to characterize the possible topological nature of these devices and offer the possibility of controlling their transport properties. We develop a next-to-leading order master equation to describe the multiterminal transport in superconductors with both strong Coulomb interactions and multiple subgap states, coupled with metallic leads. We show that the nonlocal differential conductance characterizes the spatial extension of the subgap states and signals the presence of degenerate bound states with a finite support on different parts of the device. Additionally, it displays sharp sign changes as a function of the induced charge of the superconductor, signaling energy crossings among its lowest excited states.

U2 - 10.1103/PhysRevB.106.235425

DO - 10.1103/PhysRevB.106.235425

M3 - Journal article

AN - SCOPUS:85145587395

VL - 106

JO - Physical Review B

JF - Physical Review B

SN - 2469-9950

IS - 23

M1 - 235425

ER -

ID: 343341682