UCL logo

UCL Discovery

UCL home » Library Services » Electronic resources » UCL Discovery

Fast Nuclear Spin Hyperpolarization of Phosphorus in Silicon

McCamey, DR; van Tol, J; Morley, GW; Boehme, C; (2009) Fast Nuclear Spin Hyperpolarization of Phosphorus in Silicon. PHYS REV LETT , 102 (2) , Article 027601. 10.1103/PhysRevLett.102.027601. Green open access

[img]
Preview
PDF
135983.pdf

Download (472kB)

Abstract

We experimentally demonstrate a method for obtaining nuclear spin hyperpolarization, that is, polarization significantly in excess of that expected at thermal equilibrium. By exploiting a nonequilibrium Overhauser process, driven by white light irradiation, we obtain more than 68% negative nuclear polarization of phosphorus donors in silicon. This polarization is reached with a time constant of similar to 150 sec, at a temperature of 1.37 K and a magnetic field of 8.5 T. The ability to obtain such large polarizations is discussed with regards to its significance for quantum information processing and magnetic resonance imaging.

Type: Article
Title: Fast Nuclear Spin Hyperpolarization of Phosphorus in Silicon
Open access status: An open access version is available from UCL Discovery
DOI: 10.1103/PhysRevLett.102.027601
Publisher version: http://dx.doi.org/10.1103/PhysRevLett.102.027601
Language: English
Additional information: © 2009 The American Physical Society
Keywords: POLARIZATION
UCL classification: UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > London Centre for Nanotechnology
URI: http://discovery.ucl.ac.uk/id/eprint/135983
Downloads since deposit
84Downloads
Download activity - last month
Download activity - last 12 months
Downloads by country - last 12 months

Archive Staff Only

View Item View Item