Publication

Experimental electronic structure of a 1D organic metal: TTF-TCNQ

Giorgio Margaritondo, Marco Grioni
1998
Journal Articles

Abstract

We exploited angle-resolved photoelectron spectroscopy (ARPES) with high energy resolution to map the band structure of the typical one-dimensional organic conductor TTF-TCNQ. We directly observe dispersing spectral features corresponding to the donor (TTF) and acceptor (TCNQ) bands, and their crossing at the Fermi wavevector k(F). Near the chemical potential, however, the quasiparticle peak are completely renormalized away, and the spectrum is totally incoherent. The suggest that we have observed the dispersion and spectral function of a metallic non-Fermi liquid.

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https://infoscience.epfl.ch/entities/publication/74b60e19-26a3-4c1a-a24d-870edff0be55

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Giorgio Margaritondo, Marco Grioni
1998
Journal Articles

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/74b60e19-26a3-4c1a-a24d-870edff0be55

About this result

Related concepts (28)

Electronic band structure

In solid-state physics, the electronic band structure (or simply band structure) of a solid describes the range of energy levels that electrons may have within it, as well as the ranges of energy that they may not have (called band gaps or forbidden bands). Band theory derives these bands and band gaps by examining the allowed quantum mechanical wave functions for an electron in a large, periodic lattice of atoms or molecules.

Polymer capacitor

A polymer capacitor, or more accurately a polymer electrolytic capacitor, is an electrolytic capacitor (e-cap) with a solid conductive polymer electrolyte. There are four different types: Polymer tantalum electrolytic capacitor (Polymer Ta-e-cap) Polymer aluminium electrolytic capacitor (Polymer Al-e-cap) Hybrid polymer capacitor (Hybrid polymer Al-e-cap) Polymer niobium electrolytic capacitors Polymer Ta-e-caps are available in rectangular surface-mounted device (SMD) chip style.

Fermi energy

The Fermi energy is a concept in quantum mechanics usually referring to the energy difference between the highest and lowest occupied single-particle states in a quantum system of non-interacting fermions at absolute zero temperature. In a Fermi gas, the lowest occupied state is taken to have zero kinetic energy, whereas in a metal, the lowest occupied state is typically taken to mean the bottom of the conduction band. The term "Fermi energy" is often used to refer to a different yet closely related concept, the Fermi level (also called electrochemical potential).

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Experimental electronic structure of a 1D organic metal: TTF-TCNQ

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