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Part 1: Document Description
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Citation |
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Title: |
Interplay between Aharonov-Bohm and Altshuler-Aronov-Spivak oscillations in phase-pure GaAs/InAs core/shell nanowires of different lengths |
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Identification Number: |
doi:10.26165/JUELICH-DATA/R5XUVF |
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Distributor: |
Jülich DATA |
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Date of Distribution: |
2026-06-15 |
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Version: |
1 |
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Bibliographic Citation: |
Basarić, Farah; Wang, Kaiwen; Dumitru, Tudor-Gabriel; Manolescu, Andrei; Alvarado-Cesar, Francisco; Sanchez, Ana M.; Krause Christoph; Grützmacher, Detlev; Pawlis, Alexander; Schäpers, Thomas, 2026, "Interplay between Aharonov-Bohm and Altshuler-Aronov-Spivak oscillations in phase-pure GaAs/InAs core/shell nanowires of different lengths", https://doi.org/10.26165/JUELICH-DATA/R5XUVF, Jülich DATA, V1 |
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Citation |
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Title: |
Interplay between Aharonov-Bohm and Altshuler-Aronov-Spivak oscillations in phase-pure GaAs/InAs core/shell nanowires of different lengths |
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Identification Number: |
doi:10.26165/JUELICH-DATA/R5XUVF |
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Authoring Entity: |
Basarić, Farah (Peter Grünberg Institute 9) |
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Wang, Kaiwen (Peter Grünberg Institute 9) |
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Dumitru, Tudor-Gabriel (Department of Engineering, Reykjavik University, Menntavegur 1, IS-102 Reykjavik, Iceland) |
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Manolescu, Andrei (Department of Engineering, Reykjavik University, Menntavegur 1, IS-102 Reykjavik, Iceland) |
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Alvarado-Cesar, Francisco (Department of Physics, University of Warwick, Coventry CV4 7AL, UK) |
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Sanchez, Ana M. (Department of Physics, University of Warwick, Coventry CV4 7AL, UK) |
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Krause Christoph (Peter Grünberg Institute 10) |
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Grützmacher, Detlev (Peter Grünberg Institute 9) |
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Pawlis, Alexander (Peter Grünberg Institute 10) |
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Schäpers, Thomas (Peter Grünberg Institute 9) |
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Grant Number: |
EXC 2004/2—39053476 |
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Grant Number: |
EP/W002418/1 |
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Grant Number: |
22301 |
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Grant Number: |
JPMJAP2338 |
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Distributor: |
Jülich DATA |
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Access Authority: |
Schäpers, Thomas |
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Depositor: |
Schäpers, Thomas |
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Date of Deposit: |
2026-06-02 |
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Study Scope |
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Keywords: |
Physics, Nanowires, Aharonov-Bohm effect, electron interference effects, Altshuler-Aronov-Spivak oscillations |
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Abstract: |
In GaAs/InAs core/shell nanowires, comprising a tubular conducting shell, interference phenomena observed under an axial field and originating from closed-loop states encircling the insulating core, provide an ideal platform for superconducting quantum devices that utilize effects such as Aharonov-Bohm or Altshuler-Aronov-Spivak-type conductance oscillations. Both effects are different in nature with respect to phase rigidity because of interference of non-time-reversed or time-reversed paths, respectively. Since their occurrence is largely governed by averaging effects, which depend on sample dimensions and the transport regime, we present a systematic study of flux-periodic oscillations of phase-pure zinc-blende GaAs/InAs core/shell nanowires as a function of gate voltage for samples with different contact separation lengths. Our analysis shows that with increasing contact separation length, averaging effects result in gradual reduction of h/e-periodic Aharonov-Bohm-type oscillations, while the h/2e-periodic Altshuler-Aronov-Spivak oscillations and its h/4e-periodic higher harmonics are enhanced. The additional phase rigidity seen in the h/3e-periodic oscillations is attributed to phase rigidity propagating from the neighbouring lower harmonics. Our tight-binding transport simulations on nanowires of different lengths which contain only a few scattering centers confirm the experimental observations regarding the different harmonics and their phase rigidity. Together, our experimental and simulation findings indicate quasi-ballistic transport with persistent Aharonov-Bohm-, and phase-rigid Altshuler-Aronov-Spivak-type oscillations despite few scattering centers. |
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Methodology and Processing |
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Sources Statement |
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Data Access |
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Notes: |
CC0 Waiver |
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Other Study Description Materials |
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Related Publications |
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Citation |
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Identification Number: |
2606.10788 |
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Bibliographic Citation: |
https://arxiv.org/abs/2606.10788 |
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KWANT_Raw_data_2um.csv |
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KWANT_Raw_data_4um.csv |
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KWANT_Raw_data_600nm.csv |
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