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New wave of technologies possible after ground-breaking analysis tool developed
Date:8/26/2012

Tarakovskii added: "We have developed new techniques which allowed unprecedented sensitivity and enhancement of the NMR signal in nanostructures. Particular nanostructures of interest in our research are semiconductor quantum dots, which are researched widely for their promising photonic applications, and potential for the use in a new type of computer hardware employing quantum logic.

"The result of our experiments was quite unexpected and changed our understanding of the architecture of these nanomaterials: we learned new information about the chemical composition of quantum dots, and also how atom alignment inside the dots deviates from that of a perfect crystal. Importantly, many more measurements of optical and magnetic properties can be done on the same quantum dots which have undergone the NMR probing."

The development of the new techniques and all experimental work was carried out by Dr Evgeny Chekhovich in the group of Dr Alexander Tartakovskii at the Department of Physics and Astronomy in Sheffield. Quantum dot samples used in this work have also been fabricated in Sheffield, in the EPSRC National Facility for III-V Semiconductor Technology.


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Contact: Paul Mannion
p.f.mannion@sheffield.ac.uk
01-142-229-851
University of Sheffield
Source:Eurekalert

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