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Angle-dependent magnetoresistance oscillations due to magnetic breakdown orbits

Physical Review B - Condensed Matter and Materials Physics, ISSN: 1098-0121, Vol: 76, Issue: 5
2007
  • 20
    Citations
  • 0
    Usage
  • 24
    Captures
  • 0
    Mentions
  • 0
    Social Media
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Metrics Details

  • Citations
    20
    • Citation Indexes
      20
  • Captures
    24

Article Description

We present experimental evidence for a hitherto unconfirmed type of angle-dependent magnetoresistance oscillation caused by magnetic breakdown. The effect was observed in the organic superconductor κ- (BEDT-TTF)2 Cu (NCS)2 using hydrostatic pressures of up to 9.8 kbar and magnetic fields of up to 33 T. In addition, we show that similar oscillations are revealed in ambient-pressure measurements, provided that the Shubnikov-de Haas oscillations are suppressed either by elevated temperatures or filtering of the data. These results provide a compelling validation of Pippard's semiclassical picture of magnetic breakdown. © 2007 The American Physical Society.

Bibliographic Details

Blundell, S. J.; Bangura, A. F.; McDonald, R. D.; Singleton, J.; Coldea, A. I.; Ardavan, A.; Goddard, P. A.; Schlueter, J. A.; Tozer, S. W.

American Physical Society (APS)

Materials Science; Physics and Astronomy

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