Temperature-dependent luttinger surfaces

T. Ito, A. Chainani, T. Haruna, K. Kanai, T. Yokoya, S. Shin, R. Kato

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20 Citations (Scopus)


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 4kF charge-density-wave (CDW) superstructure in the TCNQ derived holon band, in the absence of 2kF order. Decreasing temperature results in quasi-1D nested 2kF 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.

Original languageEnglish
Article number246402
JournalPhysical Review Letters
Issue number24
Publication statusPublished - Dec 9 2005
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy(all)


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