| The Kondo effect in the presence of ferromagnetism. | |
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MedLine Citation:
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PMID: 15459383 Owner: NLM Status: PubMed-not-MEDLINE |
Abstract/OtherAbstract:
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We measured Kondo-assisted tunneling via C60 molecules in contact with ferromagnetic nickel electrodes. Kondo correlations persisted despite the presence of ferromagnetism, but the Kondo peak in the differential conductance was split by an amount that decreased (even to zero) as the moments in the two electrodes were turned from parallel to antiparallel alignment. The splitting is too large to be explained by a local magnetic field. However, the voltage, temperature, and magnetic field dependence of the signals agree with predictions for an exchange splitting of the Kondo resonance. The Kondo effect leads to negative values of magnetoresistance, with magnitudes much larger than the Julliere estimate. |
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Authors:
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Abhay N Pasupathy; Radoslaw C Bialczak; Jan Martinek; Jacob E Grose; Luke A K Donev; Paul L McEuen; Daniel C Ralph |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Science (New York, N.Y.) Volume: 306 ISSN: 1095-9203 ISO Abbreviation: Science Publication Date: 2004 Oct |
Date Detail:
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Created Date: 2004-10-01 Completed Date: 2004-10-25 Revised Date: 2007-03-19 |
Medline Journal Info:
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Nlm Unique ID: 0404511 Medline TA: Science Country: United States |
Other Details:
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Languages: eng Pagination: 86-9 Citation Subset: - |
Affiliation:
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Laboratory of Atomic and Solid State Physics, Cornell University, Ithaca, NY 14853, USA. |
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Comment In:
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Science. 2004 Oct 1;306(5693):63-4
[PMID:
15459374
]
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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