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Low temperature conduction-band transport in diamond
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Electricity.
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Electricity.
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Electricity. Argonne Natl Lab, Ctr Nanoscale Mat, Argonne, IL 60439 USA..
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Electricity.
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2016 (English)In: Applied Physics Letters, ISSN 0003-6951, E-ISSN 1077-3118, Vol. 109, no 16, 162106Article in journal (Refereed) Published
Abstract [en]

By performing Time-of-Flight measurements on high-purity single-crystalline chemical vapor deposited diamond, we are able to extract the electron drift velocity of valley-polarized electrons in the low-injection regime. The aim of this study is to improve the understanding of the mechanisms involved in the conduction-band transport of valley-polarized electrons. The measurements were carried out within the temperature range of 10-80 K, and the experimental results are systematically compared with Monte Carlo charge transport simulations. We observe a rapid enhancement of the electron mobility with decreasing temperature, which reveals that inelastic effects in electron-phonon scattering become important below similar to 40 K. In addition, we obtain the momentum relaxation rate for electrons with different valley polarizations.

Place, publisher, year, edition, pages
2016. Vol. 109, no 16, 162106
National Category
Condensed Matter Physics Engineering and Technology
Identifiers
URN: urn:nbn:se:uu:diva-310010DOI: 10.1063/1.4964720ISI: 000386933200020OAI: oai:DiVA.org:uu-310010DiVA: diva2:1055360
Funder
Swedish Research Council, 621-2014-6026ÅForsk (Ångpanneföreningen's Foundation for Research and Development), 15-288Carl Tryggers foundation , 14:151 15:225Swedish National Infrastructure for Computing (SNIC), SNIC2014-3-65
Available from: 2016-12-12 Created: 2016-12-09 Last updated: 2016-12-19Bibliographically approved

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Majdi, SamanGabrysch, MarkusKumar Kovi, KiranSuntornwipat, NattakarnIsberg, Jan
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