| Literature DB >> 16606124 |
M König1, A Tschetschetkin, E M Hankiewicz, Jairo Sinova, V Hock, V Daumer, M Schäfer, C R Becker, H Buhmann, L W Molenkamp.
Abstract
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 nonmonotonic 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 magnetoconductance for a multichannel ring structure within the Landauer-Büttiker formalism.Year: 2006 PMID： 16606124 DOI： 10.1103/PhysRevLett.96.076804
Source DB: PubMed Journal: Phys Rev Lett ISSN： 0031-9007 Impact factor: 9.161