Surface superstructures of quasi-one-dimensional organic conductor β-(BEDT-TTF)2PF6 | Zendy

Hidemi Shigekawa | Zendy; Koji Miyake | Zendy; Arata Miyauchi | Zendy; M. Ishida | Zendy; Haruhiro Oigawa | Zendy; Yasuo Nannichi | Zendy; Ryozo Yoshizaki | Zendy; Takehiko Mori | Zendy

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Surface superstructures of quasi-one-dimensional organic conductor β-(BEDT-TTF)2PF6

Author(s) -

Hidemi Shigekawa,

Koji Miyake,

Arata Miyauchi,

M. Ishida,

Haruhiro Oigawa,

Yasuo Nannichi,

Ryozo Yoshizaki,

Takehiko Mori

Publication year - 1995

Publication title -

physical review. b, condensed matter

Language(s) - English

Resource type - Journals

eISSN - 1095-3795

pISSN - 0163-1829

DOI - 10.1103/physrevb.52.16361

Subject(s) - scanning tunneling microscope , crystal (programming language) , conductor , materials science , electrical conductor , surface (topology) , condensed matter physics , perpendicular , physics , crystallography , crystal structure , chemistry , quantum mechanics , geometry , mathematics , computer science , composite material , programming language

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

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