Journal
SCIENCE
Volume 330, Issue 6011, Pages 1652-1656Publisher
AMER ASSOC ADVANCEMENT SCIENCE
DOI: 10.1126/science.1197931
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Funding
- National High Magnetic Field Laboratory (NHMFL) [12488]
- State of Florida
- U.S. Department of Energy
- NSF [DMR-0654118, 953225]
- Australian Research Council [DP1093526]
- Royal Commission
- EPSRC
- EPSRC [EP/H026622/1] Funding Source: UKRI
- Engineering and Physical Sciences Research Council [EP/H026622/1] Funding Source: researchfish
- Australian Research Council [DP1093526] Funding Source: Australian Research Council
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Electron spins are strong candidates with which to implement spintronics because they are both mobile and able to be manipulated. The relatively short lifetimes of electron spins, however, present a problem for the long-term storage of spin information. We demonstrated an ensemble nuclear spin memory in phosphorous-doped silicon, which can be read out electrically and has a lifetime exceeding 100 seconds. The electronic spin information can be mapped onto and stored in the nuclear spin of the phosphorus donors, and the nuclear spins can then be repetitively read out electrically for time periods that exceed the electron spin lifetime. We discuss how this memory can be used in conjunction with other silicon spintronic devices.
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