Abstract
In this paper, we report direct evidence of a structural transition in the organic superconductor (Formula presented) near 80 K and the effect of disorder on the superconducting transition temperature. By cooling the sample from above 80 K, the interlayer magnetoresistance displays a bumplike feature, which increases sharply with increasing cooling rate. The rapidly cooled sample has a much larger resistivity and a lower transition temperature, which decreases linearly with increasing resistivity near the transition temperature. We propose that rapid cooling quenches the sample into a disordered state. Localized moments in the disordered state reduce the superconducting transition temperature.
Original language | English (US) |
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Pages (from-to) | R14056-R14059 |
Journal | Physical Review B - Condensed Matter and Materials Physics |
Volume | 57 |
Issue number | 22 |
DOIs | |
State | Published - Jan 1 1998 |
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics