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Title: Persuasive evidence for electron-nuclear coupling in diluted magnetic colloidal nanoplatelets using optically detected magnetic resonance spectroscopy
Authors: Strassberg, Rotem
Delikanli, Savas
Barak, Yahel
Dehnel, Joanna
Kostadinov, Alyssa
Maikov, Georgy
Hernandez-Martinez, Pedro Ludwig
Sharma, Manoj
Demir, Hilmi Volkan
Lifshitz, Efrat
Keywords: Engineering::Electrical and electronic engineering
Issue Date: 2019
Source: Strassberg, R.., Delikanli, S., Barak, Y., Dehnel, J., Kostadinov, A., Maikov, G., . . . Lifshitz, E. (2019). Persuasive evidence for electron-nuclear coupling in diluted magnetic colloidal nanoplatelets using optically detected magnetic resonance spectroscopy. Journal of Physical Chemistry Letters, 10(15), 4437–4447. doi:10.1021/acs.jpclett.9b01999
Journal: Journal of physical chemistry letters
Abstract: The incorporation of magnetic impurities into semiconductor nanocrystals with size confinement promotes enhanced spin exchange interaction between photogenerated carriers and the guest spins. This interaction stimulates new magneto-optical properties with significant advantages for emerging spin-based technologies. Here we observe and elaborate on carrier-guest interactions in magnetically doped colloidal nanoplatelets with the chemical formula CdSe/Cd1-xMn x S, explored by optically detected magnetic resonance and magneto-photoluminescence spectroscopy. The host matrix, with a quasi-type II electronic configuration, introduces a dominant interaction between a photogenerated electron and a magnetic dopant. Furthermore, the data convincingly presents the interaction between an electron and nuclear spins of the doped ions located at neighboring surroundings, with consequent influence on the carrier's spin relaxation time. The nuclear spin contribution by the magnetic dopants in colloidal nanoplatelets is considered here for the first time.
ISSN: 1948-7185
DOI: 10.1021/acs.jpclett.9b01999
Schools: School of Electrical and Electronic Engineering 
School of Physical and Mathematical Sciences 
Organisations: The Photonics Institute
Centre of Excellence for Semiconductor Lighting and Displays
Rights: This document is the Accepted Manuscript version of a Published Work that appeared in final form in Journal of physical chemistry letters, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:EEE Journal Articles
SPMS Journal Articles

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