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Related papers: Atomic-Scale Strain Manipulation of a Charge Densi…

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We suggest a theory for a deformable and sliding charge density wave (CDW) in the Hall bar geometry for the quantum limit when the carriers in remnant small pockets are concentrated at lowest Landau levels (LL) forming a fractionally…

Strongly Correlated Electrons · Physics 2015-01-29 Serguei Brazovskii

We discuss the interplay between electronic correlations and an underlying superlattice structure in determining the period of charge density waves (CDW's), by considering a one-dimensional Hubbard model with a repeated (non-random) pattern…

Strongly Correlated Electrons · Physics 2009-11-11 Andre L Malvezzi , Thereza Paiva , Raimundo R dos Santos

Even though the rare-earth tritellurides are tetragonal materials with a quasi two dimensional (2D) band structure, they have a "hidden" 1D character. The resultant near-perfect nesting of the Fermi surface leads to the formation of a…

Strongly Correlated Electrons · Physics 2015-06-25 Hong Yao , John A. Robertson , Eun-Ah Kim , Steven A. Kivelson

Two-dimensional (2D) materials that exhibit charge density waves (CDWs) have generated many research endeavors in the hopes of employing their exotic properties for various quantum-based technologies. Early investigations surrounding CDWs…

We consider the possibility of formation of an unconventional spin density wave (USDW) in quasi-one dimensional electronic systems. In analogy with unconventional superconductivity, we develop a mean field theory of SDW allowing for the…

Strongly Correlated Electrons · Physics 2009-10-31 Balázs Dóra , Attila Virosztek

We report on a systematic study of the structural, magnetic and transport properties of high-purity 1T-VS$_2$ powder samples prepared under high pressure. The results differ notably from those previously obtained by de-intercalating Li from…

We report a novel quasi-two dimensional compound of EuTe4 hosting charge density waves (CDW) instability. The compound has a crystallographic structure in a orthorhombic space group Pmmn (No.59) with cell parameters a = 4.6347(2){\AA}, b =…

Strongly Correlated Electrons · Physics 2019-02-13 D. Wu , Q. M. Liu , S. L. Chen , G. Y. Zhong , J. Su , L. Y. Shi , L. Tong , G. Xu , P. Gao , y , N. L. Wang

The charge density wave (CDW) state in van der Waals systems shows interesting scaling phenomena as the number of layers can significantly affect the CDW transition temperature, $T_{CDW}$. However, it is often difficult to use conventional…

Bulk electrical dissipation caused by charge-density-wave (CDW) depinning and sliding is a classic subject. We present a novel local, nanoscale mechanism describing the occurrence of mechanical dissipation peaks in the dynamics of an atomic…

Mesoscale and Nanoscale Physics · Physics 2014-10-02 Franco Pellegrini , Giuseppe E. Santoro , Erio Tosatti

Using scanning tunneling microscopy and spectroscopy, for a monolayer of transition metal dichalcogenide H-NbS$_2$ grown by molecular beam epitaxy on graphene, we provide unambiguous evidence for a charge density wave (CDW) with a…

Mesoscale and Nanoscale Physics · Physics 2024-02-16 Timo Knispel , Jan Berges , Arne Schobert , Erik G. C. P. van Loon , Wouter Jolie , Tim Wehling , Thomas Michely , Jeison Fischer

Fermi surface fluctuations and lattice instabilities in the 2D metallic kagome superconductor CsV$_3$Sb$_5$ are elucidated via polarization-resolved Raman spectroscopy. The presence of a weak electronic continuum in high-quality samples…

Charge density waves (CDW) are states of broken symmetry with a periodic modulation of charge and lattice typically leading to the opening of a gap in the band structure. In the model CDW system 1T-TiSe$_2$ such a gap opens up between its…

Strongly Correlated Electrons · Physics 2022-06-22 Maximilian Huber , Yi Lin , Nicholas Dale , Renee Sailus , Sefaattin Tongay , Robert A. Kaindl , Alessandra Lanzara

Topological kagome systems have been a topic of great interest in condensed matter physics due totheir unique electronic properties. The vanadium-based kagome materials are particularly intrigu-ing since they exhibit exotic phenomena such…

Two-dimensional (2D) materials have become a fertile playground for the exploration and manipulation of novel collective electronic states. Recent experiments have unveiled a variety of robust 2D orders in highly-crystalline materials…

Charge density waves (CDWs) appear in numerous condensed matter platforms, ranging from high-Tc superconductors to quantum Hall systems. Despite such ubiquity, there has been a lack of direct experimental study on boundary states that can…

In this article, we review different studies based on advanced x-ray diffraction techniques - especially coherent x-ray diffraction - that allowed us to reveal the behaviour of such symmetry-breaking systems as Charge Density Wave (CDW) and…

Strongly Correlated Electrons · Physics 2023-07-26 David Le Bolloc'h , E. Bellec , N. Kirova , V. L. R. Jacques

The kagome geometry is an example of frustrated configuration in which rich physics takes place, including the emergence of superconductivity and charge density wave (CDW). Among the kagome metals, ScV$_6$Sn$_6$ hosts an unconventional CDW,…

Charge-density-wave (CDW) materials having a strong electron-phonon coupling provide a powerful platform for investigating the intricate interplay between lattice fluctuations and a macroscopic quantum order. Using time- and angle-resolved…

Charge density wave (CDW) materials can undergo an ultrafast phase transition after an ultrashort laser pulse excitation, and the suggested underlying mechanisms have always been associated with two main features: excitonic…

Materials Science · Physics 2021-12-24 Zhao-Jun Suo , Wen-Hao Liu , Zhi Wang , Hao-Wen Liu , Jun-Wei Luo , Shu-Shen Li , Lin-Wang Wang

Charge transport in materials has an impact on a wide range of devices based on semiconductor, battery or superconductor technology. Charge transport in sliding Charge Density Waves (CDW) differs from all others in that the atomic lattice…