Article Dans Une Revue Physical Review B: Condensed Matter and Materials Physics (1998-2015) Année : 2019

Polarization dependence of angle-resolved photoemission with submicron spatial resolution reveals emerging one-dimensionality of electrons in NbSe 3

Résumé

In materials with nearly commensurate band filling the electron liquid may spontaneously separate into components with distinct properties, yielding complex intra- and interunit cell ordering patterns and a reduced dimensionality. Polarization-dependent angle-resolved photoemission data with submicron spatial resolution demonstrate such an electronic self-organization in NbSe3, a compound considered to be a paradigm of charge order. The new data indicate the emergence of a novel order, and reveal the one-dimensional (1D) physics hidden in a material which naively could be considered the most three dimensional of all columnar chalcogenides. The 1D physics is evidenced by a new selection rule—in two polarizations we observe two strikingly different dispersions each closely resembling apparently contradicting results of previous studies of this material.

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hal-02413198 , version 1 (08-10-2021)

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M. Valbuena, P. Chudzinski, S. Pons, S. Conejeros, P. Alemany, et al.. Polarization dependence of angle-resolved photoemission with submicron spatial resolution reveals emerging one-dimensionality of electrons in NbSe 3. Physical Review B: Condensed Matter and Materials Physics (1998-2015), 2019, 99 (7), ⟨10.1103/PhysRevB.99.075118⟩. ⟨hal-02413198⟩
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