Surface superstructures of quasi-one-dimensional organic conductor β-(BEDT-TTF)2PF6 crystal studied by scanning tunneling microscopy

H. Shigekawa, K. Miyake, A. Miyauchi, M. Ishida, H. Oigawa, Y. Nannichi, R. Yoshizaki, and T. Mori
Phys. Rev. B 52, 16361 – Published 15 December 1995
PDFExport Citation

Abstract

Two kinds of superstructures were found at ∼280 K by scanning tunneling microscopy on the crystal surface of β-(BEDT-TFF)2PF6, a quasi-one-dimensional organic conductor with a metal-insulator phase transition at ∼297 K. One has a structural modulation which is perpendicular to the one-dimensional conductive axis, similar to that previously observed on a TTF-TCNQ crystal surface. The other has a twofold periodicity along the one-dimensional conductive axis, as expected from the theory. Under the assumption that the former is an intermediate structure caused by the interaction between neighboring one-dimensional molecular chains, superstructures which have been observed in BEDT-TTF compounds could be explained well.

  • Received 30 May 1995

DOI:https://doi.org/10.1103/PhysRevB.52.16361

©1995 American Physical Society

Authors & Affiliations

H. Shigekawa, K. Miyake, A. Miyauchi, M. Ishida, H. Oigawa, and Y. Nannichi

  • Instutute of Materials Science and Center for Tsukuba Advanced Research Alliance, University of Tsukuba, Tsukuba 305, Japan

R. Yoshizaki

  • Institute of Applied Physics, Center for Tsukuba Advanced Research Alliance, and Cryogenics Center, University of Tsukuba, Tsukuba 305, Japan

T. Mori

  • Department of Polymeric Materials, Tokyo Institute of Technology, Tokyo 152, Japan

References (Subscription Required)

Click to Expand
Issue

Vol. 52, Iss. 23 — 15 December 1995

Reuse & Permissions
Access Options
Author publication services for translation and copyediting assistance advertisement

Authorization Required


×
×

Images

×

Sign up to receive regular email alerts from Physical Review B

Log In

Cancel
×

Search


Article Lookup

Paste a citation or DOI

Enter a citation
×