Abstract
From low-temperature X-ray diffraction measurements, the interlayer spacing d100 of the layered organic superconductor k-{BEDT-TTF)2Cu(NCS)2 is revealed to take a maximum around 100K. Since d100=a-sinβ (a is the monoclinic lattice parameter and P the angle between the a- and c-axes), this anomalous maximum is due to the combined effect of the monotonous increasing a and decreasing sinβ (β>90°) with decreasing temperatures. This result can be attributed to the structural changes in the hydrogen bonding between the terminal ethylene CH2 and the counter anion molecule -SCN-Cu-NCS-.
| Original language | English |
|---|---|
| Pages (from-to) | 2118-2121 |
| Number of pages | 4 |
| Journal | journal of the physical society of japan |
| Volume | 60 |
| Issue number | 7 |
| DOIs | |
| Publication status | Published - 1991 Jan |
Keywords
- hydrogen bonding
- k-{BEDT-TTF)2Cu(NCS)2
- lattice parameter
- low-temperature X-ray diffraction
- organic superconductor
ASJC Scopus subject areas
- Physics and Astronomy(all)