DC Field | Value | Language |
---|---|---|
dc.contributor.author | Park, Daniel K. | ko |
dc.contributor.author | Park, Sejun | ko |
dc.contributor.author | Jee, Hyejung | ko |
dc.contributor.author | Lee, Soonchil | ko |
dc.date.accessioned | 2019-06-14T00:30:04Z | - |
dc.date.available | 2019-06-14T00:30:04Z | - |
dc.date.created | 2019-03-11 | - |
dc.date.created | 2019-03-11 | - |
dc.date.created | 2019-03-11 | - |
dc.date.created | 2019-03-11 | - |
dc.date.issued | 2019-02 | - |
dc.identifier.citation | SCIENTIFIC REPORTS, v.9, pp.2951 | - |
dc.identifier.issn | 2045-2322 | - |
dc.identifier.uri | http://hdl.handle.net/10203/262604 | - |
dc.description.abstract | Modulation of donor electron wavefunction via electric fields is vital to quantum computing architectures based on donor spins in silicon. For practical and scalable applications, the donor-based qubits must retain sufficiently long coherence times in any realistic experimental conditions. Here, we present pulsed electron spin resonance studies on the longitudinal (T-1) and transverse (T-2) relaxation times of phosphorus donors in bulk silicon with various electric field strengths up to near avalanche breakdown in high magnetic fields of about 1.2 T and low temperatures of about 8 K. We find that the T-1 relaxation time is significantly reduced under large electric fields due to electric current, and T-2 is affected as the T-1 process can dominate decoherence. Furthermore, we show that the magnetoresistance effect in silicon can be exploited as a means to combat the reduction in the coherence times. While qubit coherence times must be much longer than quantum gate times, electrically accelerated T-1 can be found useful when qubit state initialization relies on thermal equilibration. | - |
dc.language | English | - |
dc.publisher | NATURE PUBLISHING GROUP | - |
dc.title | Electron spin relaxations of phosphorus donors in bulk silicon under large electric field | - |
dc.type | Article | - |
dc.identifier.wosid | 000459799800100 | - |
dc.identifier.scopusid | 2-s2.0-85062262402 | - |
dc.type.rims | ART | - |
dc.citation.volume | 9 | - |
dc.citation.beginningpage | 2951 | - |
dc.citation.publicationname | SCIENTIFIC REPORTS | - |
dc.identifier.doi | 10.1038/s41598-019-39613-4 | - |
dc.contributor.localauthor | Lee, Soonchil | - |
dc.contributor.nonIdAuthor | Park, Daniel K. | - |
dc.description.isOpenAccess | Y | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordPlus | LATTICE RELAXATION | - |
dc.subject.keywordPlus | RESONANCE EXPERIMENTS | - |
dc.subject.keywordPlus | READOUT | - |
dc.subject.keywordPlus | STATES | - |
dc.subject.keywordPlus | QUBIT | - |
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