Abstract
We report electrical and magnetic studies of [NEt4]2[CuII(mnt)2]. This crystal is composed of chains of theplanar [CuII(mnt)2]-2 anions (space group P1 and z = 1) which exhibit only weak magnetic interactions. The material behaves as a semiconductor; from 300-400°K the conductivity increases by six orders of magnitude and the resistivity values above 300°K are comparable to those of some of the better known wide band-gap inorganic semiconductors. In contrast with the behavior of other linear chain systems, at room temperature the conductivity along the chain (σ∥) is less than that perpendicular to the chain (σ⊥). As the temperature is increase, the anisotropy ratio, σ∥/σ⊥, becomes greater than unity and increases to 1.6 × 102 at 400°K.
Original language | English (US) |
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Pages (from-to) | 1651-1654 |
Number of pages | 4 |
Journal | Solid State Communications |
Volume | 15 |
Issue number | 10 |
DOIs | |
State | Published - Nov 15 1974 |
Funding
(1) The material behaves as a semiconductor with both unusually large negative temperature coefficient’ of resistivity, and with resistivity values above 300°K comparable to those of some of the better-known wide band-gap inorganic semiconductors. Many linear- * This work was supported by the National Science Foundation, Grant GH33575, through the Materials Research Center, Northwestern University.
ASJC Scopus subject areas
- General Chemistry
- Condensed Matter Physics
- Materials Chemistry