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Two-dimensional charge density wave (CDW) materials received much attention for high responsivity and broadband photodetection in recent years, due to their collective electron transport and narrow bandgap. However, the high dark current…

Materials Science · Physics 2023-07-27 Jialin Li , Hua Bai , Yupeng Li , Qiang Chen , Wei Tang , Huanfeng Zhu , Xinyi Fan , Yunhao Lu , Zhuan Xu , Linjun Li

$(TaSe_4)_2I$ is a well-studied quasi-one-dimensional compound long-known to have a charge-density wave (CDW) transition around 263 K. We argue that the critical fluctuations of the pinned CDW order parameter near the transition can be…

Unconventional charge and spin density-wave states are commonly observed in bilayer nickelates, drawing considerable attention due to their proximity to high-$T_c$ superconductivity in various phase diagrams. However, the nature and…

Superconductivity · Physics 2026-04-02 Daisuke Inoue , Youichi Yamakawa , Seiichiro Onari , Hiroshi Kontani

We develop a self-consistent phase-transition theory of charge density waves (CDWs), starting from a purely microscopic model. Specifically, we derive a microscopic CDW gap equation $|\Delta_0(T)|$, taking into account of thermal phase…

Strongly Correlated Electrons · Physics 2026-03-30 F. Yang , L. Q. Chen

While parallel segments in the Fermi level contours, often found at the surfaces of topological insulators (TIs) would imply "strong" nesting conditions, the existence of charge density waves (CDWs) - periodic modulations of the electron…

Mesoscale and Nanoscale Physics · Physics 2023-01-26 Adrian Ruckhofer , Giorgio Benedek , Martin Bremholm , Wolfgang E. Ernst , Anton Tamtögl

We have compared the magnetic, transport, galvanomagnetic and specific heat properties of CeNiC$_2$, PrNiC$_2$ and NdNiC$_2$ to study the interplay between charge density waves and magnetism in these compounds. The negative…

Strongly Correlated Electrons · Physics 2017-08-02 Kamil K. Kolincio , Marta Roman , Michał J. Winiarski , Judyta Strychalska - Nowak , Tomasz Klimczuk

The existence of a charge density wave (CDW) in transition metal dichalcogenide CuS$_2$ has remained undetermined since its first experimental synthesis nearly 50 years ago. Despite conflicting experimental literature regarding its low…

Mesoscale and Nanoscale Physics · Physics 2020-10-07 Yuxin Yin , Jennifer Coulter , Christopher J. Ciccarino , Prineha Narang

The charge density wave (CDW), a translational symmetry breaking electronic liquid, plays a pivotal role in correlated quantum materials, such as high-T$_c$ superconductors and topological semimetals. Recently, CDWs that possibly intertwine…

We report studies of low-field conductivity, sigma, of the orthorhombic TaS_3 samples as a function of strain, epsilon. In the Peierls state the sigma(epsilon) dependencies show hysteresis. A similar hysteresis loop is observed for…

Strongly Correlated Electrons · Physics 2016-03-04 S. G. Zybtsev , V. Ya. Pokrovskii

We investigated low-temperature dynamics in a charge density wave (CDW) conductor NbSe3, a widely studied representative of a class of systems of driven periodic media with quenched disorder and relevant to a wider group of systems…

Strongly Correlated Electrons · Physics 2021-02-10 Katarina Cicak

Electronic phases in quantum materials are often governed by nanoscale inhomogeneity, where local order develops within spatially confined regions or puddles. A prominent example is an incommensurate charge-density-wave (I-CDW) that…

We show that the infrared reflectance of the quasi-one dimensional charge-density-wave (CDW) conductor K0.3MoO3 (blue bronze) varies with position when a voltage greater than the CDW depinning threshold is applied. The spatial dependence…

Condensed Matter · Physics 2009-11-10 R. C. Rai , V. A. Bondarenko , J. W. Brill

An electric field that builds in the direction against current, known as negative nonlocal resistance, arises naturally in viscous flows and is thus often taken as a telltale of this regime. Here we predict negative resistance for the…

Mesoscale and Nanoscale Physics · Physics 2018-10-30 Andrey Shytov , Jian Feng Kong , Gregory Falkovich , Leonid Levitov

We study nanoelectromechanical resonators fabricated from suspended flakes of NbSe$_2$ (thickness$\sim$30-50 nm) to probe charge density wave (CDW) physics at nanoscale. Variation of elastic and electronic properties accompanying the CDW…

Mesoscale and Nanoscale Physics · Physics 2010-10-28 Shamashis Sengupta , Hari S. Solanki , Vibhor Singh , Sajal Dhara , Mandar M. Deshmukh

A new quasi-neutral model describing the Weibel instability of a high-current relativistic beam propagating through a resistive plasma is developed. It treats beam electrons as kinetic particles, and ambient plasma as a non-relativistic…

Plasma Physics · Physics 2009-11-13 Anupam Karmakar , Naveen Kumar , Gennady Shvets , Oleg Polomarov , Alexander Pukhov

Recently, there have been dramatic advances in the miniaturization of electromechanical devices. Most of the micro- and nanoelectromechanical systems (MEMS-NEMS) operate in the resonant modes1. The micron-, and, the more, the…

Strongly Correlated Electrons · Physics 2007-08-21 V. Ya. Pokrovskii , S. G. Zybtsev

Conductance-voltage characteristics (CVCs) for non-symmetric tunnel junctions between $d$-wave superconductors with charge-density waves (CDWs) and normal metals were calculated. It was shown that they have a V-like form at small voltages…

Superconductivity · Physics 2015-06-18 Alexander M. Gabovich , Alexander I. Voitenko

The kagome superconductor CsV$_3$Sb$_5$ hosts a variety of charge density wave (CDW) phases, which play a fundamental role in the formation of other exotic electronic instabilities. However, identifying the precise structure of these CDW…

We have used electro-reflectance measurements to study charge-density-wave (CDW) polarization dynamics at voltages near the CDW depinning onset (Von) in the quasi-one-dimensional conductor K0.3MoO3 ("blue bronze"). For low voltages, where…

Strongly Correlated Electrons · Physics 2009-11-13 L. Ladino , E. G. Bittle , M. Uddin , J. W. Brill

Charge density waves (CDW) have been reported in NdNiO$_2$ and LaNiO$_2$ thin films grown on SrTiO$_3$ substrates using Ni-$L_3$ resonant x-ray scattering in Refs. [1-3]. In their comment [arXiv:2306.15086] on these reports, Pelliciari et…