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Anomalous spin-related quantum phase in mesoscopic hole rings
Institute of Fundamental Sciences and MacDiarmid Institute for Advanced Materials and Nanotechnology, Massey University, Manawatu Campus, Private Bag 11 222, Palmerston North 4442, New Zealand.ORCID iD: 0000-0002-8049-2425
Massey University.
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
Abstract [en]

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
National Category
Condensed Matter Physics
URN: urn:nbn:se:du-11201DOI: 10.1103/PhysRevB.81.155326ISI: 000277210500097OAI: diva2:565622
Available from: 2012-11-07 Created: 2012-11-07 Last updated: 2015-05-05Bibliographically approved

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Jääskeläinen, Markku
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