Charge density wave-generated Fermi surfaces in NdTe${}_3$

Abstract

The electronic structure of NdTe${}_3$ in the charge density wave phase (CDW) is investigated by angle-resolved photoemission spectroscopy. The combination of high-quality crystals and careful surface preparation reveals subtle and previously unobserved details in the Fermi surface topology, allowing an interpretation of the rich and unexplained quantum oscillations in the rare earth tritellurides RTe${}_3$. In particular, several closed Fermi surface elements can be observed that are related to CDW-induced replicas of the original bands, leading to the curious situation in which a CDW does not only remove Fermi surface elements but creates new ones that are observable in transport experiments. Moreover, a large residual Fermi surface is found in the CDW gap, very close to the position of the gapped normal-state Fermi surface. Its area agrees very well with high-frequency quantum oscillations in NdTe${}_3$ and its presence is explained by strong electron-phonon coupling combined with the quasi one-dimensional character of the CDW. Finally, we identify the origin of the low-frequency $\alpha$ quantum oscillations ubiquitous for the lighter R elements in the RTe${}_3$ family and responsible for the high mobility in these compounds.

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Cited by in corpus (12)

• Charge density wave induced nodal lines in LaTe${}_3$
• Non-coplanar helimagnetism in the layered van-der-Waals metal DyTe${}_3$
• Atomic-Scale Visualization of a Cascade of Magnetic Orders in the Layered Antiferromagnet $GdT{e}_3$
• Magnetotransport properties in van-der-Waals \textit{\textbf{R}}Te${}_3$ (\textit{\textbf{R}} = La, Ce, Tb)
• Observation of momentum-dependent charge density wave gap in a layered antiferromagnet GdTe3
• An autoencoder for compressing angle-resolved photoemission spectroscopy data
• Kondo-coupled van der Waals antiferromagnet with high-mobility quasiparticles
• Uncovering hidden Fermi surface instabilities through visualizing unconventional quasiparticle interference in CeTe3
• Clustering-Enhanced Time- and Angle-Resolved Photoemission Study of LaTe${}_3$: Absence of a Photoinduced Secondary CDW in the Electronic Structure
• Dual Charge-Density-Waves in Two-dimensional DyTe3 and Their Distinct Impacts on Magneto-Transport Properties
• Kramers nodal line in the charge density wave state of YTe${}_3$ and the influence of twin domains
• A detailed first-principles study of the structural, elastic, thermomechanical and optoelectronic properties of binary rare-earth tritelluride NdTe3