Coherent vs Incoherent Interlayer Transport in Layered Metals
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Title
Coherent vs Incoherent Interlayer Transport in Layered Metals |
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Author
Gard, Gary L.; Wosnitza, J.; Hagel, J.; Qualls, J. S.; Brooks, J. S.; Balthes, E.; Schweitzer, D.; Schlueter, J. A.; Geiser, U.; Mohtasham, Javid; Winter, Rolf Walter |
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Sponsor
Work at Karlsruhe was supported by the DFG. J.S.Q. was supported by Grant No. NSF-DMR-10427. We acknowledge the NSF, the state of Florida, and the U.S. Department of Energy for support of the National High Magnetic Field Laboratory.Work at Argonne National Laboratory was supported by the U.S. Dept. of Energy ~Grant No. W-31- 109-ENG-38!. Work at Portland State University was supported by NSF ~Grant No. Che-9904316! and the Petroleum Research Fund ~ACS-PRF No. 34624-AC7!. |
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Abstract
The magnetic-field, temperature, and angular dependence of the interlayer magnetoresistance of two different quasi-two-dimensional (2D) organic superconductors is reported. For k -BEDT-TTF)₂I₃, where BEDTTTF is bisethylenedithio-tetrathiafulvalene, we find a well-resolved peak in the angle-dependent magnetoresistance at Q590° ~field parallel to the layers!. This clear-cut proof for the coherent nature of the interlayer transport is absent for β″–(BEDT-TTF)₂SF₅CH₂CF₂SO₃. This and the nonmetallic behavior of the magnetoresistance suggest an incoherent quasiparticle motion for the latter 2D metal. |
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Description
Article appears in Physical Review B (http://prb.aps.org/) and is copyrighted by APS Journals (http://publish.aps.org/). The paper can be found at the following URL: http:\\doi10.1103/PhysRevB.65.180506 |
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Permanent Link
http://archives.pdx.edu/ds/psu/7339 |
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LCSH Subjects
Organic superconductors Magnetoresistance |
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Copyright
All data and content associated with the Portland State University Digital Repository are protected by United States copyright law. Duplication or sale of all or part of any of the data or images is not permitted without consent of the copyright holder. Use of the content is strictly for non-commercial, educational use. |
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Date
2002-04-26 |
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Physical Description
4 pages |
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Notes
System requirements: Adobe Acrobat Reader; Mode of access: Internet. |