Local moment scattering in the one-dimensional molecular conductors CuxNi1-x (Phthalocyaninato) I

G. Quirion*, M. Poirier, K. K. Liou, Brian M Hoffman

*Corresponding author for this work

Research output: Contribution to journalArticle

3 Scopus citations

Abstract

CuxNi1-x (pc)I (pc=phthalocyaninato) are molecular metals whose conducting stacks incorporate a one-dimensional chain of local moments (Cu2+, 1 2) strongly coupled to the conduction electrons. We report here the thermoelectric power and the microwave conductivity (17 GHz) of these solid solutions as a function of temperature. The microwave conductivity being metallic at room temperature suddenly drops and shows a large positive magnetoconductivity down to low temperature. These effects are discussed in terms of magnetic scattering of the free carriers by the local moments Cu2+ (S = 1 2. At lower temperatures (T<8 K), the conductivity becomes practically constant and frequency dependent; this behavior is rather ascribed to a new type of relaxation mechanism associated to the chain of local moments.

Original languageEnglish (US)
Pages (from-to)2653-2657
Number of pages5
JournalSynthetic Metals
Volume42
Issue number3
DOIs
StatePublished - May 29 1991

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

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