Abstract
An X-ray diffraction study is made on the incommensurate superstructure in the organic superconductor β-(BEDT-TTF)2I3 under pressure. The onset temperature of the superstructure decreases from 175 K to 150 K with increasing pressure from 1 bar to about 400 bar, above which no superstructure is found. The wave vector specifying the superstructure is found to change in the range between 100 K and -120 K. This wave-vector change slows down at low pressures. At ambient pressure it takes more than 30 hr to complete the change. This wave-vector change is found to bring about a new “2 K superconducting state” in the title compound.
| Original language | English |
|---|---|
| Pages (from-to) | 259-265 |
| Number of pages | 7 |
| Journal | journal of the physical society of japan |
| Volume | 59 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 1990 |
| Externally published | Yes |
Keywords
- BEDT-TTF
- incommensurate superstructure
- organic superconductor
- superstructure under pressure
ASJC Scopus subject areas
- Physics and Astronomy(all)
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Cite this
Nogami, Y., Kagoshima, S., Anzai, H., Tokumoto, M., Kinoshita, N., Mori, N., & Saito, G. (1990). The Superstructure of the Organic Superconductor β-(BEDT-TTF)2I3 under Pressure. journal of the physical society of japan, 59(1), 259-265. https://doi.org/10.1143/JPSJ.59.259