Phys. Rev. Lett. 96, 037601 (2006) [4 pages]

Conduction-Electron Drift Velocity Measurement via Electron Spin Resonance

Abstract

References

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M. Drescher^1,*, N. Kaplan², and E. Dormann¹
¹Physikalisches Institut, Universität Karlsruhe(TH) D-76128 Karlsruhe, Germany
²Racah Institute of Physics, Hebrew University of Jerusalem, 91904 Jerusalem, Israel

Received 8 September 2005; published 23 January 2006

See accompanying Physics Focus

In analogy with NMR, motion induced phase shift of pulsed ESR signals enables in principle the direct detection of electron drift velocity or electronic current, respectively. Overcoming the difficulties with additional magnetic field gradients induced by the current itself, we succeeded in demonstrating the detection of electron flow via ESR. Measuring the electron drift velocity in the organic conductor (fluoranthene)₂PF₆ the microscopic Ohmic law could be observed in a current range of more than ±0.25 A.

URL:

http://link.aps.org/doi/10.1103/PhysRevLett.96.037601

DOI:

10.1103/PhysRevLett.96.037601

PACS:

76.30.Pk, 72.80.Le, 76.60.Pc

^*Email address: Malte.Drescher@pi.uka.de

^†Electronic address: http://www-pi.physik.uni-karlsruhe.de/index_en.html

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Phys. Rev. Lett. 96, 037601 (2006) [4 pages]

Conduction-Electron Drift Velocity Measurement via Electron Spin Resonance