%0 Journal Article
%A Palacio, I.
%A Obando Guevara, J.
%A Chen, L.
%A Nair, M.N.
%A González Barrio, Miguel Ángel
%A Papalazarou, E.
%A Le Fèvre, P.
%A Taleb Ibrahimi, A.
%A Michel, E.G.
%A Mascaraque Susunaga, Arantzazu
%A Tejeda, A.
%T Fermi surface of LaSb2 and direct observation of a CDW transition
%D 2023
%@ 0169-4332
%U https://hdl.handle.net/20.500.14352/112823
%X We have studied the temperature-dependent electronic structure of the light rare-earth antimonide LaSb2 by combining angle-resolved photoemission (ARPES) measurements and density functional theory (DFT) calculations. ARPES measurements show the appearance of band replicas in the low-temperature Fermi surface with q = 0.25 ± 0.02 A−1 and a band folding of the same periodicity with a considerable spectral weight in the folded band. From our calculations we elucidate that the folded band exhibiting the new periodicity is associated with the La-Sb layer. We propose that an in-plane distortion, probably affecting the whole unit cell, is the structural modification related to the electronic changes. All these results converge to support that a charge density wave is stabilized in LaSb2 at low temperature.
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