Journal article
Zero-field optical manipulation of magnetic ions in semiconductors
Nature materials, Vol.7(3), pp.203-208
03/01/2008
DOI: 10.1038/nmat2123
PMID: 18278049
Abstract
Controlling and monitoring individual spins is desirable for building spin-based devices, as well as implementing quantum information processing schemes. As with trapped ions in cold gases, magnetic ions trapped on a semiconductor lattice have uniform properties and relatively long spin lifetimes. Furthermore, diluted magnetic moments in semiconductors can be strongly coupled to the surrounding host, permitting optical or electrical spin manipulation. Here we describe the zero-field optical manipulation of a few hundred manganese ions in a single gallium arsenide quantum well. Optically created mobile electron spins dynamically generate an energy splitting of the ion spins and enable magnetic moment orientation solely by changing either photon helicity or energy. These polarized manganese spins precess in a transverse field, enabling measurements of the spin lifetimes. As the magnetic ion concentration is reduced and the manganese spin lifetime increases, coherent optical control and readout of single manganese spins in gallium arsenide should be possible.
Details
- Title: Subtitle
- Zero-field optical manipulation of magnetic ions in semiconductors
- Creators
- R. C. Myers - University of California, Santa BarbaraM. H. Mikkelsen - Univ Calif Santa Barbara, Ctr Spintron & Quantum Computat, Santa Barbara, CA 93106 USAJ. -M. Tang - University of IowaA. C. Gossard - University of California, Santa BarbaraM. E. Flatte - University of Iowa, Physics and AstronomyD. D. Awschalom - University of Chicago
- Resource Type
- Journal article
- Publication Details
- Nature materials, Vol.7(3), pp.203-208
- Publisher
- Springer Nature
- DOI
- 10.1038/nmat2123
- PMID
- 18278049
- ISSN
- 1476-1122
- eISSN
- 1476-4660
- Number of pages
- 6
- Language
- English
- Date published
- 03/01/2008
- Academic Unit
- Electrical and Computer Engineering; Physics and Astronomy
- Record Identifier
- 9984428815902771
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