High field Fermi surfaces studied by AMRO in η-Mo4O11

✍ Scribed by Kokichi Oshima; Takashi Kambe; Yoshio Nogami; Takahiko Sasaki

• Publisher: Elsevier Science
• Year: 2003
• Tongue: English
• Weight: 75 KB
• Volume: 18
• Category: Article
• ISSN: 1386-9477
• DOI: 10.1016/s1386-9477(02)00964-5

✦ Synopsis

The high ÿeld Fermi surface in Á-Mo4O11 at low temperatures has been studied by the Angle-dependent Magnetoresistance Oscillation (AMRO) method (Organic Super Conductors, Springer, Berlin, 1998, p. 455). The Shubnikov-de Haas (SdH) oscillation so far obtained shows existence of the several closed surfaces, but the results only give the area of the pockets. The AMRO result at high ÿelds in the plane perpendicular to the crystal b-axis shows the angle-dependent resistance oscillation together with the SdH oscillations. We see no clear AMRO for the ÿelds in the plane perpendicular to the c-axis. The results indicate the existence of very anisotropic Fermi surfaces, which are expected from the Fermi surface model (Chem. Rev. 91 (1991) 965) taking into account the lower temperature CDW nesting vector q2.