Tuning Charge Density Wave transitions through lattice strain in NbSe3
Abstract
The Charge Density Wave (CDW) state is a perfect example of a combined structural and electronic state, both characterized by a periodic lattice distortion and an electronic modulation of condensed electrons, resulting from electron-phonon coupling. They are thus prone to be tuned by lattice strain. NbSe3 is a prototypical example of CDW states, with a chain-like structure displaying two CDWs at 145K and 59K, with wavevectors along and inclined with respect to the chain axis b. Here, we report on the evolution of the lattice structure and CDW properties in the quasi-one-dimensional charge-density-wave system NbSe3 under tensile stresses applied along and perpendicular to the chains axis b by a combination of X-ray diffraction and transport measurements. We find that the lattice structure show exotic Poissons coefficients and strongly anisotropic Youngs moduli while the evolution of the electrical resistance demonstrates shifts of both charge-density-wave critical temperatures that are strongly correlated with the lattice parameters. The two CDW transitions display different behaviours under applied stresses, and suggest that a modification of the band curvature leads to the observed transport signatures.
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BibTeX
@misc{frantz2026tuning,
title = {{Tuning Charge Density Wave transitions through lattice strain in NbSe3}},
author = {Antoine Gallo Frantz and Aleksander Sinchenko and Luc Ortega and Pavel Grigoriev and Vladislav Kochev and Pierre Godard and Pierre Olivier Renault and Dominique Thiaudiere and David Le Bolloch and Vincent Jacques},
howpublished = {arXiv},
year = {2026},
month = sep,
doi = {10.48550/arxiv.2609.09375},
eprint = {2609.09375},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2609.09375},
}
RIS
TY - UNPB
TI - Tuning Charge Density Wave transitions through lattice strain in NbSe3
AU - Antoine Gallo Frantz
AU - Aleksander Sinchenko
AU - Luc Ortega
AU - Pavel Grigoriev
AU - Vladislav Kochev
AU - Pierre Godard
AU - Pierre Olivier Renault
AU - Dominique Thiaudiere
AU - David Le Bolloch
AU - Vincent Jacques
PY - 2026
DA - 2026/09/08
PB - arXiv
DO - 10.48550/arxiv.2609.09375
UR - https://arxiv.org/abs/2609.09375
AB - The Charge Density Wave (CDW) state is a perfect example of a combined structural and electronic state, both characterized by a periodic lattice distortion and an electronic modulation of condensed electrons, resulting from electron-phonon coupling. They are thus prone to be tuned by lattice strain. NbSe3 is a prototypical example of CDW states, with a chain-like structure displaying two CDWs at 145K and 59K, with wavevectors along and inclined with respect to the chain axis b. Here, we report on the evolution of the lattice structure and CDW properties in the quasi-one-dimensional charge-density-wave system NbSe3 under tensile stresses applied along and perpendicular to the chains axis b by a combination of X-ray diffraction and transport measurements. We find that the lattice structure show exotic Poissons coefficients and strongly anisotropic Youngs moduli while the evolution of the electrical resistance demonstrates shifts of both charge-density-wave critical temperatures that are strongly correlated with the lattice parameters. The two CDW transitions display different behaviours under applied stresses, and suggest that a modification of the band curvature leads to the observed transport signatures.
ER -