Structural vs electronic origin of renormalized band widths in TTF-TCNQ: An angular dependent NEXAFS study

نویسندگان

  • M. Sing
  • J. Meyer
  • M. Hoinkis
  • S. Glawion
  • P. Blaha
  • G. Gavrila
  • C. S. Jacobsen
  • R. Claessen
چکیده

M. Sing,1,* J. Meyer,1 M. Hoinkis,1,2 S. Glawion,1 P. Blaha,3 G. Gavrila,4 C. S. Jacobsen,5 and R. Claessen1 1Experimentelle Physik IV, Universität Würzburg, D-97074 Würzburg, Germany 2Experimentalphysik II, Universität Augsburg, D-86135 Augsburg, Germany 3Institute of Materials Chemistry, Vienna University of Technology, A-1060 Vienna, Austria 4Institut für Physik, Technische Universität Chemnitz, D-09107 Chemnitz, Germany 5Department of Physics, Technical University of Denmark, DK-2800 Lyngby, Denmark Received 22 August 2007; published 20 December 2007

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

ORGANIC PHOTOCONDUCTOR TTF-TCNQ (TETRATHIAFULVALENETETRACYANOQUINODIMETHANE): A POTENTIAL ROOM TEMPERATURE INFRARED DETECTOR AT 10 ?m H. R. Mohajeri Moghaddam* and N. Peyghambarian

The absorption properties of charge transfer organic semiconductor TTF-TCNQ (tetrathiafulvalene-tetracyanoquhodimete ) filmsdeposited on KBr singlecrystal, quartz and glass substrates in far infrared have been investigated. An absorption edge at ?10 ??m was observed. Photoconductivity, photoconduction efficiency and gain and photocarrier's lifetime have been measured. The results show an el...

متن کامل

Temperature-dependent Luttinger surfaces.

The Luttinger surface of an organic metal (TTF-TCNQ), possessing charge order and spin-charge separated band dispersions, is investigated using temperature-dependent angle-resolved photoemission spectroscopy. The Luttinger surface topology, obtained from momentum distribution curves, changes from quasi-2D (dimensional) to quasi-1D with temperature. The high temperature quasi-2D surface exhibits...

متن کامل

Signatures of spin-charge separation in the 1D organic conductor TTF-TCNQ from photoelectron spectroscopy

We have studied the electronic structure of the quasi-one-dimensional organic conductor TTFTCNQ by angle-resolved photoelectron spectroscopy (ARPES). The data reveal significant discrepancies to conventional band theory. Instead the experimental dispersions can be quantitatively reproduced by the one-dimensional (1D) Hubbard model, if one allows for a surface-enhancement of the hopping integral...

متن کامل

Spectroscopic signatures of spin-charge separation in the quasi-one-dimensional organic conductor TTF-TCNQ.

The electronic structure of the quasi-one-dimensional organic conductor TTF-TCNQ is studied by angle-resolved photoelectron spectroscopy (ARPES). The experimental spectra reveal significant discrepancies to band theory. We demonstrate that the measured dispersions can be consistently mapped onto the one-dimensional Hubbard model at finite doping. This interpretation is further supported by a re...

متن کامل

Formation of dispersive hybrid bands at an organic-metal interface.

An electronic band with quasi-one-dimensional dispersion is found at the interface between a monolayer of a charge-transfer complex (TTF-TCNQ) and a Au(111) surface. Combined local spectroscopy and numerical calculations show that the band results from a complex mixing of metal and molecular states. The molecular layer folds the underlying metal states and mixes with them selectively, through t...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2007