Year: 2016
Type: article
Abstract: Dynamic nuclear polarization (DNP) is an attractive method for initializing nuclear spins that are strongly coupled to optically active electron spins because it functions at room temperature and does not require strong magnetic fields. In this Letter, we theoretically demonstrate that DNP, with near-unity polarization efficiency, can be generally realized in weakly coupled electron spin-nuclear spin systems. Furthermore, we theoretically and experimentally show that the nuclear spin polarization can be reversed by magnetic field variations as small as 0.8 Gauss. This mechanism offers new avenues for DNP-based sensors and radio-frequency free control of nuclear qubits.
Source: Physical Review Letters
Language: English
Subfield: Materials Chemistry
Field: Materials Science
Domain: Physical Sciences
Open Access status: bronze
Funders: National Science Foundation, University of Chicago, Stiftelsen för Miljöstrategisk Forskning, Strong, Stiftelsen för Strategisk Forskning, Ministry of Education and Science of the Russian Federation, Magyar Tudományos Akadémia, Linköpings Universitet, Knut och Alice Wallenbergs Stiftelse, Vetenskapsrådet, Materials Research Science and Engineering Center, Harvard University, Multidisciplinary University Research Initiative, Air Force Office of Scientific Research, Army Research Office
OpenAlex ID: W2403216607