Miserev, D.S., Srinivasan, A., Tkachenko, O.A. et al. (5 more authors) (2017) Mechanisms for Strong Anisotropy of In-Plane g-Factors in Hole Based Quantum Point Contacts. Physical Review Letters, 119 (11). 116803. ISSN 0031-9007
Abstract
In-plane hole g factors measured in quantum point contacts based on p-type heterostructures strongly depend on the orientation of the magnetic field with respect to the electric current. This effect, first reported a decade ago and confirmed in a number of publications, has remained an open problem. In this work, we present systematic experimental studies to disentangle different mechanisms contributing to the effect and develop the theory which describes it successfully. We show that there is a new mechanism for the anisotropy related to the existence of an additional Bþk4 −σþ effective Zeeman interaction for holes, which is kinematically different from the standard single Zeeman term B−k2 −σþ considered until now.
Metadata
Item Type: | Article |
---|---|
Authors/Creators: |
|
Copyright, Publisher and Additional Information: | © 2017 American Physical Society. Reproduced in accordance with the publisher's self-archiving policy. |
Dates: |
|
Institution: | The University of Sheffield |
Academic Units: | The University of Sheffield > Faculty of Engineering (Sheffield) > Department of Electronic and Electrical Engineering (Sheffield) |
Depositing User: | Symplectic Sheffield |
Date Deposited: | 19 Oct 2017 11:42 |
Last Modified: | 23 Mar 2018 22:30 |
Published Version: | https://doi.org/10.1103/PhysRevLett.119.116803 |
Status: | Published |
Publisher: | American Physical Society |
Refereed: | Yes |
Identification Number: | 10.1103/PhysRevLett.119.116803 |
Related URLs: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:122528 |