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| Hauptseite > Publikationsdatenbank > Ballistic Transport and Exchange Interaction in InAs Nanowire Quantum Point Contacts > print |
| Hauptseite > Publikationsdatenbank > Ballistic Transport and Exchange Interaction in InAs Nanowire Quantum Point Contacts > print |
| 001 | 809307 | ||
| 005 | 20210129222955.0 | ||
| 024 | 7 | _ | |a 10.1021/acs.nanolett.6b00414 |2 doi |
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| 100 | 1 | _ | |a Heedt, S. |0 P:(DE-Juel1)140272 |b 0 |e Corresponding author |
| 245 | _ | _ | |a Ballistic Transport and Exchange Interaction in InAs Nanowire Quantum Point Contacts |
| 260 | _ | _ | |a Washington, DC |c 2016 |b ACS Publ. |
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| 520 | _ | _ | |a One-dimensional ballistic transport is demonstrated for a high-mobility InAs nanowire device. Unlike conventional quantum point contacts (QPCs) created in a two-dimensional electron gas, the nanowire QPCs represent one-dimensional constrictions formed inside a quasi-onedimensional conductor. For each QPC, the local subband occupation can be controlled individually between zero and up to six degenerate modes. At large out-of-plane magnetic fields Landau quantization and Zeeman splitting emerge and comprehensive voltage bias spectroscopy is performed. Confinement-induced quenching of the orbital motion gives rise to significantly modified subband-dependent Landé g factors. A pronounced g factor enhancement related to Coulomb exchange interaction is reported. Many-body effects of that kind also manifest in the observation of the 0.7·2e2/h conductance anomaly, commonly found in planar devices. |
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