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Electrically and Mechanically Tunable Electron Spins in Silicon Carbide Color Centers
University of Chicago, IL 60637 USA University of Calif Santa Barbara, CA 93106 USA .
University of Chicago, IL 60637 USA University of Calif Santa Barbara, CA 93106 USA .
University of Calif Santa Barbara, CA 93106 USA .
Linköping University, Department of Physics, Chemistry and Biology, Theoretical Physics. Linköping University, The Institute of Technology.
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2014 (English)In: Physical Review Letters, ISSN 0031-9007, Vol. 112, no 18, 187601- p.Article in journal (Refereed) Published
Abstract [en]

The electron spins of semiconductor defects can have complex interactions with their host, particularly in polar materials like SiC where electrical and mechanical variables are intertwined. By combining pulsed spin resonance with ab initio simulations, we show that spin-spin interactions in 4H-SiC neutral divacancies give rise to spin states with a strong Stark effect, sub-10(-6) strain sensitivity, and highly spin-dependent photoluminescence with intensity contrasts of 15%-36%. These results establish SiC color centers as compelling systems for sensing nanoscale electric and strain fields.

Place, publisher, year, edition, pages
American Physical Society , 2014. Vol. 112, no 18, 187601- p.
National Category
Engineering and Technology
URN: urn:nbn:se:liu:diva-107840DOI: 10.1103/PhysRevLett.112.187601ISI: 000336099800011OAI: diva2:727882
Available from: 2014-06-23 Created: 2014-06-23 Last updated: 2014-06-25

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