Superconductivity and Parity Preservation in As-Grown In Islands on InAs Nanowires

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Standard

Superconductivity and Parity Preservation in As-Grown In Islands on InAs Nanowires. / Bjergfelt, Martin Saurbrey; Carrad, Damon J.; Kanne, Thomas; Johnson, Erik; Fiordaliso, Elisabetta M.; Jespersen, Thomas Sand; Nygard, Jesper.

I: Nano Letters, Bind 21, Nr. 23, 08.12.2021, s. 9875-9881.

Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt

Harvard

Bjergfelt, MS, Carrad, DJ, Kanne, T, Johnson, E, Fiordaliso, EM, Jespersen, TS & Nygard, J 2021, 'Superconductivity and Parity Preservation in As-Grown In Islands on InAs Nanowires', Nano Letters, bind 21, nr. 23, s. 9875-9881. https://doi.org/10.1021/acs.nanolett.1c02487

APA

Bjergfelt, M. S., Carrad, D. J., Kanne, T., Johnson, E., Fiordaliso, E. M., Jespersen, T. S., & Nygard, J. (2021). Superconductivity and Parity Preservation in As-Grown In Islands on InAs Nanowires. Nano Letters, 21(23), 9875-9881. https://doi.org/10.1021/acs.nanolett.1c02487

Vancouver

Bjergfelt MS, Carrad DJ, Kanne T, Johnson E, Fiordaliso EM, Jespersen TS o.a. Superconductivity and Parity Preservation in As-Grown In Islands on InAs Nanowires. Nano Letters. 2021 dec. 8;21(23):9875-9881. https://doi.org/10.1021/acs.nanolett.1c02487

Author

Bjergfelt, Martin Saurbrey ; Carrad, Damon J. ; Kanne, Thomas ; Johnson, Erik ; Fiordaliso, Elisabetta M. ; Jespersen, Thomas Sand ; Nygard, Jesper. / Superconductivity and Parity Preservation in As-Grown In Islands on InAs Nanowires. I: Nano Letters. 2021 ; Bind 21, Nr. 23. s. 9875-9881.

Bibtex

@article{ac897253580047ee84ba2db4646fa0cc,
title = "Superconductivity and Parity Preservation in As-Grown In Islands on InAs Nanowires",
abstract = "We report in situ synthesis of crystalline indium islands on InAs nanowires grown by molecular beam epitaxy. Structural analysis by transmission electron microscopy showed that In crystals grew in a tetragonal body-centered crystal structure within two families of orientations relative to wurtzite InAs. The crystalline islands had lengths < 500 nm and low-energy surfaces, suggesting that growth was driven mainly by surface energy minimization. Electrical transport through In/InAs devices exhibited Cooper pair charging, evidencing charge parity preservation and a pristine In/InAs interface, with an induced superconducting gap similar to 0.45 meV. Cooper pair charging persisted to temperatures > 1.2 K and magnetic fields similar to 0.7 T, demonstrating that In/InAs hybrids belong to an expanding class of semiconductor/superconductor hybrids operating over a wider parameter space than state-of-the-art Al-based hybrids. Engineering crystal morphology while isolating single islands using shadow epitaxy provides an interesting alternative to previous semiconductor/superconductor hybrid morphologies and device geometries.",
keywords = "nanowires, nanoscale superconductors, indium, hybrid nanowires, quantum materials, MAJORANA FERMIONS, QUANTUM, PERIODICITY, LIFETIME, EPITAXY, INDIUM, 2E",
author = "Bjergfelt, {Martin Saurbrey} and Carrad, {Damon J.} and Thomas Kanne and Erik Johnson and Fiordaliso, {Elisabetta M.} and Jespersen, {Thomas Sand} and Jesper Nygard",
year = "2021",
month = dec,
day = "8",
doi = "10.1021/acs.nanolett.1c02487",
language = "English",
volume = "21",
pages = "9875--9881",
journal = "Nano Letters",
issn = "1530-6984",
publisher = "American Chemical Society",
number = "23",

}

RIS

TY - JOUR

T1 - Superconductivity and Parity Preservation in As-Grown In Islands on InAs Nanowires

AU - Bjergfelt, Martin Saurbrey

AU - Carrad, Damon J.

AU - Kanne, Thomas

AU - Johnson, Erik

AU - Fiordaliso, Elisabetta M.

AU - Jespersen, Thomas Sand

AU - Nygard, Jesper

PY - 2021/12/8

Y1 - 2021/12/8

N2 - We report in situ synthesis of crystalline indium islands on InAs nanowires grown by molecular beam epitaxy. Structural analysis by transmission electron microscopy showed that In crystals grew in a tetragonal body-centered crystal structure within two families of orientations relative to wurtzite InAs. The crystalline islands had lengths < 500 nm and low-energy surfaces, suggesting that growth was driven mainly by surface energy minimization. Electrical transport through In/InAs devices exhibited Cooper pair charging, evidencing charge parity preservation and a pristine In/InAs interface, with an induced superconducting gap similar to 0.45 meV. Cooper pair charging persisted to temperatures > 1.2 K and magnetic fields similar to 0.7 T, demonstrating that In/InAs hybrids belong to an expanding class of semiconductor/superconductor hybrids operating over a wider parameter space than state-of-the-art Al-based hybrids. Engineering crystal morphology while isolating single islands using shadow epitaxy provides an interesting alternative to previous semiconductor/superconductor hybrid morphologies and device geometries.

AB - We report in situ synthesis of crystalline indium islands on InAs nanowires grown by molecular beam epitaxy. Structural analysis by transmission electron microscopy showed that In crystals grew in a tetragonal body-centered crystal structure within two families of orientations relative to wurtzite InAs. The crystalline islands had lengths < 500 nm and low-energy surfaces, suggesting that growth was driven mainly by surface energy minimization. Electrical transport through In/InAs devices exhibited Cooper pair charging, evidencing charge parity preservation and a pristine In/InAs interface, with an induced superconducting gap similar to 0.45 meV. Cooper pair charging persisted to temperatures > 1.2 K and magnetic fields similar to 0.7 T, demonstrating that In/InAs hybrids belong to an expanding class of semiconductor/superconductor hybrids operating over a wider parameter space than state-of-the-art Al-based hybrids. Engineering crystal morphology while isolating single islands using shadow epitaxy provides an interesting alternative to previous semiconductor/superconductor hybrid morphologies and device geometries.

KW - nanowires

KW - nanoscale superconductors

KW - indium

KW - hybrid nanowires

KW - quantum materials

KW - MAJORANA FERMIONS

KW - QUANTUM

KW - PERIODICITY

KW - LIFETIME

KW - EPITAXY

KW - INDIUM

KW - 2E

U2 - 10.1021/acs.nanolett.1c02487

DO - 10.1021/acs.nanolett.1c02487

M3 - Journal article

C2 - 34807620

VL - 21

SP - 9875

EP - 9881

JO - Nano Letters

JF - Nano Letters

SN - 1530-6984

IS - 23

ER -

ID: 299400004