Skip navigation
Skip navigation

Generation of spin-polarized currents via cross-relaxation with dynamically pumped paramagnetic impurities

Meriles, Carlos A.; Doherty, Marcus W.

Description

Key to future spintronics and spin-based information processing technologies is the generation, manipulation, and detection of spin polarization in a solid state platform. Here, we theoretically explore an alternative route to spin injection via the use of dynamically polarized nitrogen-vacancy (NV) centers in diamond. We focus on the geometry where carriers and NV centers are confined to proximate, parallel layers and use a 'trap-and-release' model to calculate the spin cross-relaxation...[Show more]

dc.contributor.authorMeriles, Carlos A.
dc.contributor.authorDoherty, Marcus W.
dc.date.accessioned2015-10-26T23:05:39Z
dc.date.available2015-10-26T23:05:39Z
dc.identifier.issn0003-6951
dc.identifier.urihttp://hdl.handle.net/1885/16091
dc.description.abstractKey to future spintronics and spin-based information processing technologies is the generation, manipulation, and detection of spin polarization in a solid state platform. Here, we theoretically explore an alternative route to spin injection via the use of dynamically polarized nitrogen-vacancy (NV) centers in diamond. We focus on the geometry where carriers and NV centers are confined to proximate, parallel layers and use a 'trap-and-release' model to calculate the spin cross-relaxation probabilities between the charge carriers and neighboring NV centers. We identify near-unity regimes of carrier polarization depending on the NV spin state, applied magnetic field, and carrier g-factor. In particular, we find that unlike holes, electron spins are distinctively robust against spin-lattice relaxation by other, unpolarized paramagnetic centers. Further, the polarization process is only weakly dependent on the carrier hopping dynamics, which makes this approach potentially applicable over a broad range of temperatures.
dc.description.sponsorshipC.A.M. acknowledges support from the National Science Foundation through Grant No. NSF-1314205. M.W.D. acknowledges support from the Australian Research Council through Grant No. DP120102232.
dc.publisherAmerican Institute of Physics (AIP)
dc.rightshttp://www.sherpa.ac.uk/romeo/issn/0003-6951..."Publishers version/PDF may be used on author's personal website, institutional website or institutional repository" from SHERPA/RoMEO site (as at 27/10/15). Copyright 2014 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in Applied Physics Letters and may be found at https://doi.org/10.1063/1.4890096
dc.sourceApplied Physics Letters
dc.titleGeneration of spin-polarized currents via cross-relaxation with dynamically pumped paramagnetic impurities
dc.typeJournal article
local.description.notesImported from ARIES
local.identifier.citationvolume105
dc.date.issued2014-07-14
local.identifier.absfor090000
local.identifier.ariespublicationU3488905xPUB4019
local.publisher.urlhttps://www.aip.org/
local.type.statusPublished Version
local.contributor.affiliationMeriles, Carlos A, CUNY-City College of New York, United States of America
local.contributor.affiliationDoherty, Marcus, College of Physical and Mathematical Sciences, CPMS Research School of Physics and Engineering, Laser Physics Centre, The Australian National University
dc.relationhttp://purl.org/au-research/grants/arc/DP120102232
local.bibliographicCitation.issue2
local.bibliographicCitation.startpage022403
local.identifier.doi10.1063/1.4890096
dc.date.updated2015-12-11T08:39:04Z
local.identifier.scopusID2-s2.0-84904719740
CollectionsANU Research Publications

Download

File Description SizeFormat Image
01_Meriles_Generation_of_spin-polarized_2014.pdfPublished Version946.29 kBAdobe PDFThumbnail


Items in Open Research are protected by copyright, with all rights reserved, unless otherwise indicated.

Updated:  19 May 2020/ Responsible Officer:  University Librarian/ Page Contact:  Library Systems & Web Coordinator