RT Journal Article
T1 Fermi surface of LaSb2 and direct observation of a CDW transition
A1 Palacio, I.
A1 Obando Guevara, J.
A1 Chen, L.
A1 Nair, M.N.
A1 González Barrio, Miguel Ángel
A1 Papalazarou, E.
A1 Le Fèvre, P.
A1 Taleb Ibrahimi, A.
A1 Michel, E.G.
A1 Mascaraque Susunaga, Arantzazu
A1 Tejeda, A.
AB 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.
PB Elsevier
SN 0169-4332
YR 2023
FD 2023
LK https://hdl.handle.net/20.500.14352/112823
UL https://hdl.handle.net/20.500.14352/112823
LA eng
NO I. 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.
NO Agence Nationale de la Recherche (France)
NO European Commission
NO Ministerio de Ciencia e Innovación (España)
NO Agencia Estatal de Investigación (España)
NO Comunidad de Madrid
DS Docta Complutense
RD 7 abr 2025