1. Emerging one-dimensionality from self-organization of electrons in NbSe$_3$
- Author
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Valbuena, M. A., Chudzinski, P., Pons, S., Conejeros, S., Alemany, P., Canadell, E., Berger, H., Frantzeskakis, E., Avila, J., Asensio, M. C., Giamarchi, T., and Grioni, M.
- Subjects
Condensed Matter - Strongly Correlated Electrons ,Condensed Matter - Materials Science - Abstract
Materials where the electron filling is close to commensurate filling provide one of the great challenges in materials science. Several proposals of unconventional orderings, where the electronic liquid self-organizes into components with distinct properties, were recently put forward, in particular in cuprates and pnictides where electronic nematic orders have been observed. The electrons self-organization is expected to yield complex intra and inter unit cell patterns, and a reduction of dimensionality. Nevertheless, an unambiguous experimental proof of such complex orders, namely the direct observation of distinct dispersions, is still missing. Here we report a Nano Angle Resolved Photo-emission Spectroscopy (Nano-ARPES) study of NbSe$_3$, a material that has been considered a paradigm of charge order. The new data (Fig.1) invalidate the canonical picture of imperfect nesting and reveals the emergence of a novel order. The electrons self-organization uncovers the one-dimensional (1D) physics hidden in a material which naively should be the most 3D of all columnar chalcogenides., Comment: 15 pages, 4 figures; Supplementary Material (14 pages) available upon request
- Published
- 2016