Temperature dependent Luttinger surfaces

Abstract

The Luttinger surface of an organic metal (TTF-TCNQ), possessing charge order and spin-charge separation, 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 4$k_F$ charge-density-wave (CDW) superstructure in the TCNQ derived holon band, in the absence of 2$k_F$ order. Decreasing temperature results in quasi-1D nested 2$k_F$ CDW order in the TCNQ spinon band and in the TTF surface. The results establish the link in momentum-space between charge order and spin-charge separation in a Luttinger liquid.

4 pages, 2 figures

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Cited by in corpus (11)

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• Chemistry in One Dimension
• Spectral functions of two-band spinless fermion and single-band spin-1/2 fermion models
• Anomalous temperature dependence of the single-particle spectrum in the organic conductor TTF-TCNQ
• Symmetry-broken local-density approximation for one-dimensional systems
• Determination of screened Coulomb repulsion energies in organic molecular crystals: A real space approach
• Fermi Surface Deformation near Charge-Ordering Transition
• The Hall effect in the organic conductor TTF-TCNQ: Choice of geometry for accurate measurements of highly anisotropic system
• Band-selective Holstein polaron in Luttinger liquid material A0.3MoO3 (A = K, Rb)