Anomalous spin-related quantum phase in mesoscopic hole rings
2010 (English)In: Physical Review B. Condensed Matter and Materials Physics, ISSN 1098-0121, E-ISSN 1550-235X, Vol. 81, no 15, 155326Article in journal (Refereed) Published
We have obtained numerically exact results for the spin-related geometric quantum phases that arise in p-type semiconductor ring structures. The interplay between gate-controllable (Rashba) spin splitting and quantum-confinement-induced mixing between hole-spin states causes a much higher sensitivity of magnetoconductance oscillations to external parameters than previously expected. Our results imply a much-enhanced functionality of hole-ring spin-interference devices and shed new light on recent experimental findings.
Place, publisher, year, edition, pages
2010. Vol. 81, no 15, 155326
Condensed Matter Physics
IdentifiersURN: urn:nbn:se:du-11201DOI: 10.1103/PhysRevB.81.155326ISI: 000277210500097OAI: oai:DiVA.org:du-11201DiVA: diva2:565622