Author/Authors :
Ichimura، نويسنده , , K. and Abe، نويسنده , , O. and Nomura، نويسنده , , K. and Takasaki، نويسنده , , S. Narita-Yamada، نويسنده , , J. and Nakatsuji، نويسنده , , S. and Anzai، نويسنده , , H.، نويسنده ,
Abstract :
The SDW phase of (TMTSF)2PF6 was investigated by the electron tunneling spectroscopy using a low temperature STM. At room temperature and 86 K, the tunneling conductance is almost flat indicating metallic state. Below TSDW=11.5 K, the spectrum shows the clear gap structure associated with the SDW state. The conductance curve is well explained by the mean field approximation for the quasi-one dimensional conductors. The SDW gap parameter ΔSDW and ε0, which characterizes the transfer energy along the b-axis, are estimated as ΔSDW=2.5–2.9 meV and ε0=2.0–2.6 meV, respectively. The SDW-insulator-SDW tunneling spectrum was also observed.
