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In Ti-intercalated self-doped $1T$-TiSe$_2$ crystals, the charge density wave (CDW) superstructure induces two nonequivalent sites for Ti dopants. Recently, it has been shown that increasing Ti doping dramatically influences the CDW by…

The charge density wave (CDW) is a condensate that often forms in layered materials. It is known to carry electric current \emph{en masse}, but the transport mechanism remains poorly understood at the microscopic level. Its quantum nature…

Mesoscale and Nanoscale Physics · Physics 2023-10-17 John H. Miller , Martha Y. Suárez-Villagrán , Johnathan O. Sanderson

Two-dimensional materials are ideal candidates to host Charge density waves (CDWs) that exhibit paramagnetic limiting behavior, similarly to the well known case of superconductors. Here we study how CDWs in two-dimensional systems can…

Superconductivity · Physics 2020-09-18 Alex Aperis , Georgios Varelogiannis

We derive and study equations for dissipative transient processes in a constraint incommensurate charge density wave (CDW) with remnant pockets or a thermal population of normal carriers. The attention was paid to give the correct…

Strongly Correlated Electrons · Physics 2015-01-07 Alvaro Rojo Bravo , Tianyou Yi , Natasha Kirova , Serguei Brazovskii

A number of intriguing phenomena, including exciton condensation, orbital ordering, and emergence of chirality, have been proposed to accompany charge-density-wave (CDW) formation in the layered transition metal dichalcogenide…

Strongly Correlated Electrons · Physics 2025-02-18 Wei Wang , Patrick Liu , Lijun Wu , Jing Tao , Genda Gu , Alfred Zong , Yimei Zhu

The Bose-Einstein condensation of excitons continues to garner immense attention as a prototypical example for observing emergent properties from many-body quantum effects. In particular, Titanium Diselenide (TiSe$_2$) is a promising…

Materials Science · Physics 2019-12-06 Chao Lian , Zulfikhar A. Ali , Bryan M. Wong

We present an \textit{ab initio} investigation of the long-range charge density wave (CDW) order and superconducting properties of the pristine and lithiated NbSe$_2$ monolayer. Stable CDW structures are obtained through atomic…

Superconductivity · Physics 2025-07-17 Hari Paudyal , Michael E. Flatté

Emergence of topological states in strongly correlated systems, particularly two-dimensional (2D) transition-metal dichalcogenides, offers a platform for manipulating electronic properties in quantum materials. However, a comprehensive…

Upon excitation with an intense ultrafast laser pulse, a symmetry-broken ground state can undergo a non-equilibrium phase transition through pathways dissimilar from those in thermal equilibrium. Determining the mechanism underlying these…

The capability to isolate one to few unit-cell thin layers from the bulk matrix of layered compounds opens fascinating prospects to engineer novel electronic phases. However, a comprehensive study of the thickness dependence and of…

Strongly Correlated Electrons · Physics 2017-09-06 Árpád Pásztor , Alessandro Scarfato , Céline Barreteau , Enrico Giannini , Christoph Renner

Here we perform angle and time-resolved photoelectron spectroscopy on the commensurate Charge Density Wave (CDW) phase of 1T-TaS$_2$. Data with different probe pulse polarization are employed to map the dispersion of electronic states below…

We investigated the effect of application of hydrostatic pressure on the charge-density wave (CDW) state in Lu(Pt$_{1-x}$Pd$_x$)$_2$In by electrical-resistivity measurements. In Lu(Pt$_{0.7}$Pd$_{0.3}$)$_{2}$In we find an increase of the…

Strongly Correlated Electrons · Physics 2021-02-10 M. O. Ajeesh , Thomas Gruner , Christoph Geibel , Michael Nicklas

We employed a scanning tunneling microscope to image the (001) surface topography and local density of states (LDOS) in La$_{2-2x}$Sr$_{1+2x}$Mn$_2$O$_7$ (x=0.32, LSMO) single crystals below the Curie temperature (T$_C$ = 120 K). The LDOS…

Strongly Correlated Electrons · Physics 2015-06-15 Jeehoon Kim , Junwei Huang , J. -S. Zhou , J. B. Goodenough , J. F. Mitchell , Alex de Lozanne

The Charge-density-wave(CDW) in 2H-NbSe2(TCDW ~ 33 K), which coexists with superconductivity(Tc = 7.2 K), is investigated using Angle-resolved photoemission spectroscopy as a function of temperature. Across TCDW, energy and momentum(k)…

Strongly Correlated Electrons · Physics 2007-05-23 T. Kiss , T. Yokoya , A. Chainani , S. Shin , T. Hanaguri , M. Nohara , H. Takagi

Chiral charge density wave (CDW) is widely observed in low dimensional systems to be entangled with various emerging phases but its microscopic origin has been elusive. We reinvestigate the representative but debated chiral CDW of…

Strongly Correlated Electrons · Physics 2024-01-04 Hyeonjung Kim , Kyung-Hwan Jin , Han Woong Yeom

In this study we have studied the initial stage of the nanosecond-pulsed discharge development in liquid phase. Modeling predicts that in the case of fast rising strong nonhomogeneous electric fields in the vicinity of high voltage pin…

We experimentally study linear and nonlinear waves on the surface of a fluid covered by an elastic sheet where both tension and flexural waves take place. An optical method is used to obtain the full space-time wave field, and the…

Fluid Dynamics · Physics 2014-02-10 Luc Deike , Jean-Claude Bacri , Eric Falcon

Ultrafast transient reflectivity changes caused by collective and single particle excitations in the quasi one-dimensional charge-density wave (CDW) semiconductor K0.3MoO3 are investigated with optical pump-probe spectroscopy. The…

Strongly Correlated Electrons · Physics 2009-10-31 J. Demsar , K. Biljakovic , D. Mihailovic

In this paper, we present a comprehensive analysis of the contact mechanics associated with a micron-sized sliding asperity, which plays a crucial role in the abrasive wear processes. Utilising nanoscratch testing, we experimentally…

Materials Science · Physics 2024-11-26 Anna Kareer , Eralp Demir , Edmund Tarleton , Christopher Hardie

We theoretically investigate the effects of surface acoustic waves (SAWs) on an electric-field-driven sliding motion of a one-dimensional charge density wave (CDW), which is initially pinned by impurities. By numerically analyzing an…

Strongly Correlated Electrons · Physics 2023-09-21 Yu Funami , Kazushi Aoyama