Electronic structure of the organic superconductor κ-(BEDT-TTF<span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><msub><mrow><mo>)</mo></mrow><mrow><mn>2</mn></mrow></msub></mrow></math></span>Cu(NCS<span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><msub><mrow><mo>)</mo></mrow><mrow><mn>2</mn></mrow></msub></mrow></math></span> [where BEDT-TTF is bis(ethylenedithio)tetrathiafulvalene] studied by scanning tunneling microscopy

Masamichi Yoshimura; Hidemi Shigekawa; Hitoshi Nejoh; Gunzi Saito; Yoshio Saito; Akira Kawazu

doi:10.1103/PhysRevB.43.13590

Electronic structure of the organic superconductor κ-(BEDT-TTF $)_{2}$ Cu(NCS $)_{2}$ [where BEDT-TTF is bis(ethylenedithio)tetrathiafulvalene] studied by scanning tunneling microscopy

Masamichi Yoshimura, Hidemi Shigekawa, Hitoshi Nejoh, Gunzi Saito, Yoshio Saito, and Akira Kawazu

Phys. Rev. B 43, 13590 – Published 1 June 1991

Abstract

The bis(ethylenedithio)tetrathiafulvalene (BEDT-TTF) molecules in κ-(BEDT-TTF $)_{2}$ Cu(NCS $)_{2}$ crystals were observed directly by scanning tunneling microscopy. Carrier distribution observed on the BEDT-TTF molecules were in good agreement with the electronic structure calculated by an ab initio method based on the dimerized molecular structure determined by x-ray diffraction. The layer structure consisting of a stack of alternate conductive and insulating layers was clearly observed.