Exchange coupling and high-temperature transport in M(phthalocyanine)I conductors

Ivar Martin, Philip Phillips

Research output: Contribution to journalArticlepeer-review

Abstract

From our analysis of the magnetic susceptibility in M(pc)I organic conductors, we are able to extract a carrier-mediated exchange interaction for Cu2+ spins in the alloy CuxNi1-x(pc)I. We find that Jed≈300 K. We also show that residual magnetic impurities must be present to account for the observed experimental trends. At high temperatures, we argue that the experimentally observed positive magnetoresistance is consistent with the standard semiclassical correction (ωcτ)2, indicating that in this regime, transport is diffusive and three dimensional.

Original languageEnglish (US)
Pages (from-to)530-532
Number of pages3
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume60
Issue number1
DOIs
StatePublished - Jan 1 1999

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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