Interference effects due to commensurate electron trajectories and topological crossovers in (TMTSF) 2 ClO4

H. I. Ha, Andrei G Lebed, M. J. Naughton

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Abstract

We report angle-dependent magnetoresistance measurements on (TMTSF) 2 ClO4 that provide strong support for a macroscopic quantum phenomenon, the "interference commensurate" (IC) effect, in quasi-one dimensional metals. In addition to observing rich magnetoresistance oscillations, and fitting them with one-electron calculations, we observe a clear demarcation of field-dependent behavior at local resistance minima and maxima (versus field angle). Anticipated by a theoretical treatment of the IC effect in terms of Bragg reflections in the extended Brillouin zone, this behavior results from one-dimensional → two dimensional (1D→2D) topological crossovers of electron wave functions as a function of field orientation.

Original languageEnglish (US)
Article number033107
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume73
Issue number3
DOIs
StatePublished - 2006

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electron trajectories
Magnetoresistance
crossovers
Trajectories
interference
Electrons
Wave functions
Brillouin zones
electrons
Metals
wave functions
oscillations
metals
perchlorate

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

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abstract = "We report angle-dependent magnetoresistance measurements on (TMTSF) 2 ClO4 that provide strong support for a macroscopic quantum phenomenon, the {"}interference commensurate{"} (IC) effect, in quasi-one dimensional metals. In addition to observing rich magnetoresistance oscillations, and fitting them with one-electron calculations, we observe a clear demarcation of field-dependent behavior at local resistance minima and maxima (versus field angle). Anticipated by a theoretical treatment of the IC effect in terms of Bragg reflections in the extended Brillouin zone, this behavior results from one-dimensional → two dimensional (1D→2D) topological crossovers of electron wave functions as a function of field orientation.",
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AU - Ha, H. I.

AU - Lebed, Andrei G

AU - Naughton, M. J.

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N2 - We report angle-dependent magnetoresistance measurements on (TMTSF) 2 ClO4 that provide strong support for a macroscopic quantum phenomenon, the "interference commensurate" (IC) effect, in quasi-one dimensional metals. In addition to observing rich magnetoresistance oscillations, and fitting them with one-electron calculations, we observe a clear demarcation of field-dependent behavior at local resistance minima and maxima (versus field angle). Anticipated by a theoretical treatment of the IC effect in terms of Bragg reflections in the extended Brillouin zone, this behavior results from one-dimensional → two dimensional (1D→2D) topological crossovers of electron wave functions as a function of field orientation.

AB - We report angle-dependent magnetoresistance measurements on (TMTSF) 2 ClO4 that provide strong support for a macroscopic quantum phenomenon, the "interference commensurate" (IC) effect, in quasi-one dimensional metals. In addition to observing rich magnetoresistance oscillations, and fitting them with one-electron calculations, we observe a clear demarcation of field-dependent behavior at local resistance minima and maxima (versus field angle). Anticipated by a theoretical treatment of the IC effect in terms of Bragg reflections in the extended Brillouin zone, this behavior results from one-dimensional → two dimensional (1D→2D) topological crossovers of electron wave functions as a function of field orientation.

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