Magnetotransport study of valley-polarized electrons in synthetic diamond
2016 (English)In: PHYSICAL REVIEW B, ISSN 2469-9950, Vol. 94, no 3, 035408Article in journal (Refereed) PublishedText
We demonstrate that the highly stable valley-polarized electron states in ultrapure single-crystalline diamond allow for investigation of charge transport, magnetoresistivity, and determination of the dominant scattering mechanism. The Hall effect gives rise to nonisotropic contributions in the mobility tensor that were measured at a temperature of 70 K in a time-of-flight setup with an added magnetic field. The observations of the magnetotransport of valley-polarized electrons in diamond are compared with both Monte Carlo simulations and an analytical model based on the Boltzmann transport equation. We establish that acoustic phonon scattering is the dominant electron scattering mechanism at 70 K for each of the valley polarizations in the investigated samples.
Place, publisher, year, edition, pages
2016. Vol. 94, no 3, 035408
Condensed Matter Physics Engineering and Technology
IdentifiersURN: urn:nbn:se:uu:diva-300466DOI: 10.1103/PhysRevB.94.035408ISI: 000379717700005OAI: oai:DiVA.org:uu-300466DiVA: diva2:951449
FunderSwedish Research Council, 621-2014-6026ÅForsk (Ångpanneföreningen's Foundation for Research and Development), 15-288Swedish National Infrastructure for Computing (SNIC), SNIC2014-3-65