Direct observation of the Aharonov-Casher phase
| Autor: | A. Tschetschetkin, Laurens W. Molenkamp, V. Daumer, C. R. Becker, Jairo Sinova, Hartmut Buhmann, Markus König, E. M. Hankiewicz, V. Hock, M. Schäfer |
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| Rok vydání: | 2005 |
| Předmět: |
Physics
Formalism (philosophy of mathematics) Phase factor Condensed Matter - Mesoscale and Nanoscale Physics Condensed matter physics Mesoscale and Nanoscale Physics (cond-mat.mes-hall) Direct observation General Physics and Astronomy Conductance FOS: Physical sciences Wave function Condensed Matter::Mesoscopic Systems and Quantum Hall Effect Quantum well |
| DOI: | 10.48550/arxiv.cond-mat/0508396 |
| Popis: | Ring structures fabricated from HgTe/HgCdTe quantum wells have been used to study Aharonov-Bohm type conductance oscillations as a function of Rashba spin-orbit splitting strength. We observe non-monotonic phase changes indicating that an additional phase factor modifies the electron wave function. We associate these observations with the Aharonov-Casher effect. This is confirmed by comparison with numerical calculations of the magneto-conductance for a multichannel ring structure within the Landauer-B\"uttiker formalism. Comment: 4 pages, 4 figures |
| Databáze: | OpenAIRE |
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