In-plane selective area InSb–Al nanowire quantum networks

Roy L.M. Op het Veld; Di Xu; Vanessa Schaller; Marcel A. Verheijen; Stan M.E. Peters; Jason Jung; Chuyao Tong; Qingzhen Wang; Michiel W.A. de Moor; Bart Hesselmann; Kiefer Vermeulen; Jouri D.S. Bommer; Joon Sue Lee; Andrey Sarikov; Mihir Pendharkar; Anna Marzegalli; Sebastian Koelling; Leo P. Kouwenhoven; Leo Miglio; Chris J. Palmstrøm; Hao Zhang; Erik P.A.M. Bakkers

doi:10.1038/s42005-020-0324-4

In-plane selective area InSb–Al nanowire quantum networks

Roy L.M. Op het Veld, Di Xu, Vanessa Schaller, Marcel A. Verheijen, Stan M.E. Peters, Jason Jung, Chuyao Tong, Qingzhen Wang, Michiel W.A. de Moor, Bart Hesselmann, Kiefer Vermeulen, Jouri D.S. Bommer, Joon Sue Lee, Andrey Sarikov, Mihir Pendharkar, Anna Marzegalli, Sebastian Koelling, Leo P. Kouwenhoven, Leo Miglio, Chris J. PalmstrømHao Zhang (Corresponding author), Erik P.A.M. Bakkers (Corresponding author)

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Strong spin–orbit semiconductor nanowires coupled to a superconductor are predicted to host Majorana zero modes. Exchange (braiding) operations of Majorana modes form the logical gates of a topological quantum computer and require a network of nanowires. Here, we utilize an in-plane selective area growth technique for InSb–Al semiconductor–superconductor nanowire networks. Transport channels, free from extended defects, in InSb nanowire networks are realized on insulating, but heavily mismatched InP (111)B substrates by full relaxation of the lattice mismatch at the nanowire/substrate interface and nucleation of a complete network from a single nucleation site by optimizing the surface diffusion length of the adatoms. Essential quantum transport phenomena for topological quantum computing are demonstrated in these structures including phase-coherence lengths exceeding several micrometers with Aharonov–Bohm oscillations up to five harmonics and a hard superconducting gap accompanied by 2e-periodic Coulomb oscillations with an Al-based Cooper pair island integrated in the nanowire network.

Originele taal-2	Engels
Artikelnummer	59
Aantal pagina's	7
Tijdschrift	Communications Physics
Volume	3
Nummer van het tijdschrift	1
DOI's	https://doi.org/10.1038/s42005-020-0324-4
Status	Gepubliceerd - 1 dec. 2020

Financiering

This work has been supported by the European Research Council (ERC HELENA 617256 and Synergy), the Dutch Organization for Scientific Research (NWO), and Microsoft Corporation Station-Q. We acknowledge Solliance, a solar energy R&D initiative of ECN, TNO, Holst, TU/e, imec and Forschungszentrum Jülich, and the Dutch province of Noord-Brabant for funding the TEM facility. The work at University of California, Santa Barbara was supported in part by Microsoft Research. We also acknowledge the Department of Energy (DE-SC0019274) and the use of facilities within the National Science Foundation Materials Research and Science and Engineering Center (DMR 11–21053) at the University of California, Santa Barbara. We thank Ghada Badawy and Ksenia Korzun for their careful reading of the manuscript.

Financiers	Financiernummer
Dutch Organization for Scientific Research
Province of Noord-Brabant
Microsoft Corporation Station‐Q
National Science Foundation Materials Research and Science and Engineering Center	DMR 11–21053
U.S. Department of Energy
Microsoft Research
Office of Energy Analysis	DE-SC0019274
University of California at Santa Barbara
Seventh Framework Programme	617256
European Research Council
Research Centre Julich (FZJ)
Nederlandse Organisatie voor Wetenschappelijk Onderzoek

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1 Commentaar/Brief aan de redacteur

Author Correction: In-plane selective area InSb–Al nanowire quantum networks (Communications Physics, (2020), 3, 1, (59), 10.1038/s42005-020-0324-4)
Op het Veld, R. L. M., Xu, D., Schaller, V., Verheijen, M. A., Peters, S. M. E., Jung, J., Tong, C., Wang, Q., de Moor, M. W. A., Hesselmann, B., Vermeulen, K., Bommer, J. D. S., Lee, J. S., Sarikov, A., Pendharkar, M., Marzegalli, A., Koelling, S., Kouwenhoven, L. P., Miglio, L. & Palmstrøm, C. J. & 2 anderen, Zhang, H. (Corresponding author) & Bakkers, E. P. A. M. (Corresponding author), 2021, In: Communications Physics. 4, 1, 1 blz., 63.
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Op het Veld, R. L. M., Xu, D., Schaller, V., Verheijen, M. A., Peters, S. M. E., Jung, J., Tong, C., Wang, Q., de Moor, M. W. A., Hesselmann, B., Vermeulen, K., Bommer, J. D. S., Sue Lee, J., Sarikov, A., Pendharkar, M., Marzegalli, A., Koelling, S., Kouwenhoven, L. P., Miglio, L., ... Bakkers, E. P. A. M. (2020). In-plane selective area InSb–Al nanowire quantum networks. Communications Physics, 3(1), Artikel 59. https://doi.org/10.1038/s42005-020-0324-4

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abstract = "Strong spin–orbit semiconductor nanowires coupled to a superconductor are predicted to host Majorana zero modes. Exchange (braiding) operations of Majorana modes form the logical gates of a topological quantum computer and require a network of nanowires. Here, we utilize an in-plane selective area growth technique for InSb–Al semiconductor–superconductor nanowire networks. Transport channels, free from extended defects, in InSb nanowire networks are realized on insulating, but heavily mismatched InP (111)B substrates by full relaxation of the lattice mismatch at the nanowire/substrate interface and nucleation of a complete network from a single nucleation site by optimizing the surface diffusion length of the adatoms. Essential quantum transport phenomena for topological quantum computing are demonstrated in these structures including phase-coherence lengths exceeding several micrometers with Aharonov–Bohm oscillations up to five harmonics and a hard superconducting gap accompanied by 2e-periodic Coulomb oscillations with an Al-based Cooper pair island integrated in the nanowire network.",

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Op het Veld, RLM, Xu, D, Schaller, V, Verheijen, MA, Peters, SME, Jung, J, Tong, C, Wang, Q, de Moor, MWA, Hesselmann, B, Vermeulen, K, Bommer, JDS, Sue Lee, J, Sarikov, A, Pendharkar, M, Marzegalli, A, Koelling, S, Kouwenhoven, LP, Miglio, L, Palmstrøm, CJ, Zhang, H & Bakkers, EPAM 2020, 'In-plane selective area InSb–Al nanowire quantum networks', Communications Physics, vol. 3, nr. 1, 59. https://doi.org/10.1038/s42005-020-0324-4

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T1 - In-plane selective area InSb–Al nanowire quantum networks

AU - Op het Veld, Roy L.M.

AU - Xu, Di

AU - Schaller, Vanessa

AU - Verheijen, Marcel A.

AU - Peters, Stan M.E.

AU - Jung, Jason

AU - Tong, Chuyao

AU - Wang, Qingzhen

AU - de Moor, Michiel W.A.

AU - Hesselmann, Bart

AU - Vermeulen, Kiefer

AU - Bommer, Jouri D.S.

AU - Sue Lee, Joon

AU - Sarikov, Andrey

AU - Pendharkar, Mihir

AU - Marzegalli, Anna

AU - Koelling, Sebastian

AU - Kouwenhoven, Leo P.

AU - Miglio, Leo

AU - Palmstrøm, Chris J.

AU - Zhang, Hao

AU - Bakkers, Erik P.A.M.

PY - 2020/12/1

Y1 - 2020/12/1

N2 - Strong spin–orbit semiconductor nanowires coupled to a superconductor are predicted to host Majorana zero modes. Exchange (braiding) operations of Majorana modes form the logical gates of a topological quantum computer and require a network of nanowires. Here, we utilize an in-plane selective area growth technique for InSb–Al semiconductor–superconductor nanowire networks. Transport channels, free from extended defects, in InSb nanowire networks are realized on insulating, but heavily mismatched InP (111)B substrates by full relaxation of the lattice mismatch at the nanowire/substrate interface and nucleation of a complete network from a single nucleation site by optimizing the surface diffusion length of the adatoms. Essential quantum transport phenomena for topological quantum computing are demonstrated in these structures including phase-coherence lengths exceeding several micrometers with Aharonov–Bohm oscillations up to five harmonics and a hard superconducting gap accompanied by 2e-periodic Coulomb oscillations with an Al-based Cooper pair island integrated in the nanowire network.

AB - Strong spin–orbit semiconductor nanowires coupled to a superconductor are predicted to host Majorana zero modes. Exchange (braiding) operations of Majorana modes form the logical gates of a topological quantum computer and require a network of nanowires. Here, we utilize an in-plane selective area growth technique for InSb–Al semiconductor–superconductor nanowire networks. Transport channels, free from extended defects, in InSb nanowire networks are realized on insulating, but heavily mismatched InP (111)B substrates by full relaxation of the lattice mismatch at the nanowire/substrate interface and nucleation of a complete network from a single nucleation site by optimizing the surface diffusion length of the adatoms. Essential quantum transport phenomena for topological quantum computing are demonstrated in these structures including phase-coherence lengths exceeding several micrometers with Aharonov–Bohm oscillations up to five harmonics and a hard superconducting gap accompanied by 2e-periodic Coulomb oscillations with an Al-based Cooper pair island integrated in the nanowire network.

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JO - Communications Physics

JF - Communications Physics

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ER -

In-plane selective area InSb–Al nanowire quantum networks

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Author Correction: In-plane selective area InSb–Al nanowire quantum networks (Communications Physics, (2020), 3, 1, (59), 10.1038/s42005-020-0324-4)

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