Author/Authors :
Takako Konoike، نويسنده , , Ken-ichi Iwashita، نويسنده , , Issei Nakano، نويسنده , , Harukazu Yoshino، نويسنده , , Takahiko Sasaki، نويسنده , , Yoshio Nogami، نويسنده , , James S. Brooks، نويسنده , , David Graf، نويسنده , , Charles H. Mielke، نويسنده , , George C. Papavassiliou، نويسنده , , Keizo Murata، نويسنده ,
Abstract :
τ-phase organic quasi-two-dimensional conductors have a 4-fold single Fermi surface (FS) from band calculation. At low temperature, the resistivity turns into semiconducting, whereas Shubnikov-de Haas oscillations (SdH) have been observed. The SdH signal includes two frequencies that are inconsistent with the band calculation. Recently, we found the superstructure of this salt below View the MathML source by X-ray study. This result may explain the contradiction between observation and calculation for the FS.
Keywords :
Shubnikov-de Haas oscillation , Fermi surface , X-ray , Superstructure
