Abrupt dimensional crossover in the quasi-one dimensional conductor, H2(pc)I

Yoonseok Lee*, Harvey H. Hensley, Thomas M. Haard, Peter J. Hamot, William P. Halperin, Julie A. Thompson, Brian M. Hoffman

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

3 Scopus citations


H2(pc)I is known to have highly anisotropic electronic and structural properties. Electrical conductivity and magnetoresistance measurements have been performed on high purity H2(pc)I single crystals ranging from room temperature to 20 mK in magnetic fields up to 5.5 tesla. We have observed abrupt changes in both measurements around 2 K. Conductivity follows a simple quadratic temperature dependence below 2 K and remains metallic (≈10000 ω-1cm-1) down to very low temperatures, 20 mK. This phenomenon has not been reported previously in quasi-one dimensional conductors. We suggest that H2(pc)I experiences an abrupt dimensional crossover from a 1 dimensional regime to a 3 dimensional one below 2 K.

Original languageEnglish (US)
Pages (from-to)1263-1264
Number of pages2
JournalPhysica B: Physics of Condensed Matter
Issue numberPART 1
StatePublished - Feb 2 1994

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering


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