Checkerboard-type charge-ordered state of a pressure-induced superconductor, beta-(meso-DMBEDT-TTF)2PF6.
To investigate the insulating state of the pressure-induced superconductor, beta-(meso-DMBEDT-TTF)2PF6, we have carried out X-ray analysis at 11.5 K. In an asymmetric unit, there exist two crystallographically independent donor molecules, caused by charge separation. In the column structure, the arrangement of the charge-rich (r) and -poor (p) donor molecules is as rrpprrpp, which affords "checkerboard"-type charge ordering.
Kimura
Shinya
S
The Institute for Solid State Physics, The University of Tokyo, Kashiwa, Chiba 277-8581, Japan.
Suzuki
Hideaki
H
Maejima
Tomoko
T
Mori
Hatsumi
H
Yamaura
Jun-Ichi
J
Kakiuchi
Toru
T
Sawa
Hiroshi
H
Moriyama
Hiroshi
H