Finite Frequency Noise of a Superconductor-Ferromagnet Quantum Point Contact
| dc.contributor.author | Cottet, Audrey | deu |
| dc.contributor.author | Doucot, Benoit | deu |
| dc.contributor.author | Belzig, Wolfgang | |
| dc.date.accessioned | 2011-03-22T17:52:40Z | deu |
| dc.date.available | 2011-03-22T17:52:40Z | deu |
| dc.date.issued | 2008 | deu |
| dc.description.abstract | We calculate the finite-frequency current noise of a superconductor-ferromagnet quantum point contact (SF QPC). This signal is qualitatively affected by the spin dependence of interfacial phase shifts acquired by electrons upon reflection on the QPC. For a weakly transparent QPC, noise steps appear at frequencies or voltages determined directly by the spin dependence of interfacial phase shifts. These steps can occur at experimentally accessible temperatures and frequencies. Finite-frequency noise is thus a promising tool to characterize the scattering properties of a SF QPC. | eng |
| dc.description.version | published | |
| dc.identifier.citation | Publ. in: Physical Review Letters 101 (2008), 257001 | deu |
| dc.identifier.doi | 10.1103/PhysRevLett.101.257001 | |
| dc.identifier.uri | http://kops.uni-konstanz.de/handle/123456789/992 | |
| dc.language.iso | eng | deu |
| dc.legacy.dateIssued | 2010 | deu |
| dc.rights | terms-of-use | deu |
| dc.rights.uri | https://rightsstatements.org/page/InC/1.0/ | deu |
| dc.subject | shot-nlise | deu |
| dc.subject | mesoscopic conductors | deu |
| dc.subject.ddc | 530 | deu |
| dc.title | Finite Frequency Noise of a Superconductor-Ferromagnet Quantum Point Contact | eng |
| dc.type | JOURNAL_ARTICLE | deu |
| dspace.entity.type | Publication | |
| kops.citation.bibtex | @article{Cottet2008Finit-992,
year={2008},
doi={10.1103/PhysRevLett.101.257001},
title={Finite Frequency Noise of a Superconductor-Ferromagnet Quantum Point Contact},
volume={101},
journal={Physical Review Letters},
author={Cottet, Audrey and Doucot, Benoit and Belzig, Wolfgang},
note={Article Number: 257001}
} | |
| kops.citation.iso690 | COTTET, Audrey, Benoit DOUCOT, Wolfgang BELZIG, 2008. Finite Frequency Noise of a Superconductor-Ferromagnet Quantum Point Contact. In: Physical Review Letters. 2008, 101, 257001. Available under: doi: 10.1103/PhysRevLett.101.257001 | deu |
| kops.citation.iso690 | COTTET, Audrey, Benoit DOUCOT, Wolfgang BELZIG, 2008. Finite Frequency Noise of a Superconductor-Ferromagnet Quantum Point Contact. In: Physical Review Letters. 2008, 101, 257001. Available under: doi: 10.1103/PhysRevLett.101.257001 | eng |
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<dcterms:abstract xml:lang="eng">We calculate the finite-frequency current noise of a superconductor-ferromagnet quantum point contact (SF QPC). This signal is qualitatively affected by the spin dependence of interfacial phase shifts acquired by electrons upon reflection on the QPC. For a weakly transparent QPC, noise steps appear at frequencies or voltages determined directly by the spin dependence of interfacial phase shifts. These steps can occur at experimentally accessible temperatures and frequencies. Finite-frequency noise is thus a promising tool to characterize the scattering properties of a SF QPC.</dcterms:abstract>
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| kops.sourcefield | Physical Review Letters. 2008, <b>101</b>, 257001. Available under: doi: 10.1103/PhysRevLett.101.257001 | deu |
| kops.sourcefield.plain | Physical Review Letters. 2008, 101, 257001. Available under: doi: 10.1103/PhysRevLett.101.257001 | deu |
| kops.sourcefield.plain | Physical Review Letters. 2008, 101, 257001. Available under: doi: 10.1103/PhysRevLett.101.257001 | eng |
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