Metallic temperature dependence of resistivity in perchlorate doped polyacetylene

Details Metallic temperature dependence of resistivity in perchlorate doped polyacetylene Metallic temperature dependence of resistivity in perchlorate doped polyacetylene

1998-09-07

arxiv.org/abs/cond-mat/9809106v1

Synthetic Metals 96 (1998) 81

Physics

Condensed Matter

14 pages, 5 figures

Scientific paper

We have measured the electrical resistivity ($\rho$) and the thermoelectric power (TEP) of the perchlorate (ClO4^-) doped stretch oriented polyacetylene (PA) film. For the highly conducting samples ($\sigma_{RT} > 41000 S/cm$), the temperature dependence of the 4-probe resistivity shows positive temperature coefficient of resistivity (TCR) from T=1.5K to 300K. For the less conducting samples, the 4-probe resistivity data show the crossover of TCR with a broad minimum peak at T=T* > 200K. For samples of $\sigma_{RT}$$>$20000 S/cm, the $\rho (1.5K)/\rho (300K) <1$, i.e., the resistivity at 1.5K is lower than the room temperature resistivity value. The temperature dependence of the TEP shows diffusive linear metallic TEP becoming temperature independent below 40K. Unlike the others who used Cu(ClO_4)_2 for the ClO_4^- doping, the initial doping material we used is anhydrous Fe(ClO_4)_3 which is crucial to obtain the positive TCR from T=1.5K to 300K.

Affiliated with

Also associated with

No associations

Rating

Metallic temperature dependence of resistivity in perchlorate doped polyacetylene does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Metallic temperature dependence of resistivity in perchlorate doped polyacetylene, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Metallic temperature dependence of resistivity in perchlorate doped polyacetylene will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-657413