Palacio, I.Obando Guevara, J.Chen, L.Nair, M.N.González Barrio, Miguel ÁngelPapalazarou, E.Le Fèvre, P.Taleb Ibrahimi, A.Michel, E.G.Mascaraque Susunaga, ArantzazuTejeda, A.2024-12-172024-12-172023I. Palacio, J. Obando-Guevara, L. Chen, M.N. Nair, M.A.G. Barrio, E. Papalazarou, P. Le Fèvre, A. Taleb-Ibrahimi, E.G. Michel, A. Mascaraque, A. Tejeda, Fermi surface of LaSb2 and direct observation of a CDW transition, Applied Surface Science 610 (2023) 155477. https://doi.org/10.1016/j.apsusc.2022.155477.0169-433210.1016/j.apsusc.2022.155477https://hdl.handle.net/20.500.14352/112823We 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.engAttribution-NonCommercial-NoDerivatives 4.0 Internationaljournal article1873-5584https://doi.org/10.1016/j.apsusc.2022.155477https://www.sciencedirect.com/science/article/pii/S0169433222030057open access538.9Layered materialCharge density waveAngle-resolved photoemissionDensity functional theoryFísica del estado sólidoFísica de materiales2211.10 Estados Electrónicos2211.28 Superficies2211.20 Conductores Metálicos