De Haas-van Alphen oscillations in the charge-density wave compound lanthanum tritelluride (LaTe_3)
N. Ru (1), R. A. Borzi (2, 4), A. Rost (2), A. P. Mackenzie (2), J., Laverock (3), S.B. Dugdale (3), I. R. Fisher (1) ((1)Dept of Applied Physics,, Stanford University, USA (2) School of Physics, Astronomy, University of, St. Andrews, UK (3) H. H. Wills Physics Laboratory
TL;DR
This study measures de Haas-van Alphen oscillations in LaTe_3 to investigate how charge density wave formation affects its Fermi surface, revealing both unaltered and reconstructed FS sheets.
Contribution
It provides experimental evidence of Fermi surface reconstruction in LaTe_3 due to charge density wave formation using quantum oscillation measurements.
Findings
Identification of three distinct oscillation frequencies
Correlation of one frequency with an unaltered Fermi surface sheet
Observation of Fermi surface reconstruction in the CDW state
Abstract
De Haas-van Alphen oscillations were measured in lanthanum tritelluride (LaTe_3) to probe the partially gapped Fermi surface resulting from charge density wave (CDW) formation. Three distinct frequencies were observed, one of which can be correlated with a FS sheet that is unaltered by CDW formation. The other two frequencies arise from FS sheets that have been reconstructed in the CDW state.
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Taxonomy
TopicsOrganic and Molecular Conductors Research · Solid-state spectroscopy and crystallography · Inorganic Fluorides and Related Compounds