Chiral charge-density-waves

Abstract

We discovered the chirality of charge density waves (CDW) in 1T-TiSe${}_2$ by using scanning tunnelling microscopy (STM) and optical ellipsometry. We found that the CDW intensity becomes $I{a}_1:I{a}_2:I{a}_3=1:0.7\pm 0.1:0.5\pm 0.1$, where $I{a}_i$ (i =1, 2, 3) is the amplitude of the tunnelling current contributed by the CDWs. There were two states, in which the three intensity peaks of the CDW decrease \textit{clockwise} and \textit{anticlockwise} when we index each nesting vector in order of intensity in the Fourier transformation of the STM images. The chirality in CDW results in the three-fold symmetry breaking. Macroscopically, two-fold symmetry was indeed observed in optical measurement. We propose the new generalized CDW chirality $H_{CDW} \equiv {\boldmath $q_1$} \cdot ({\boldmath $q_2$}\times {\boldmath $q_3$})$, where ${\boldmath $q_i$}$ are the nesting vectors, which is independent of the symmetry of components. The nonzero $H_{CDW}$ - the triple-${\boldmath $q$}$ vectors do not exist in an identical plane in the reciprocal space - should induce a real-space chirality in CDW system.

12 pages, 4 figures

References in corpus (1)

• Semimetal to semimetal charge density wave transition in 1T-TiSe${}_2$

Cited by in corpus (73)

• Discovery of unconventional chiral charge order in kagome superconductor KV3Sb5
• Topological kagome magnets and superconductors
• Electronic crystals: an experimental overview
• Analysis of Charge Order in the Kagome Metal $A$V${}_3$Sb${}_5$ ($A=$K,Rb,Cs)
• Complex charge density waves at Van Hove singularity on hexagonal lattices: Haldane-model phase diagram and potential realization in kagome metals ${\text{AV}}_3{\text{Sb}}_5$
• Non-thermal separation of electronic and structural orders in a persisting charge density wave
• Electronic nature of chiral charge order in the kagome superconductor CsV3Sb5
• Intrinsic nature of chiral charge order in the kagome superconductor RbV3Sb5
• Optical detection and manipulation of spontaneous gyrotropic electronic order in a transition-metal dichalcogenide semimetal
• Molecular beam epitaxy growth and scanning tunneling microscopy study of TiSe${}_2$ ultrathin films
• Circular dichroism of emergent chiral stacking orders in quasi-one-dimensional charge density waves
• Electronic and vibrational properties of ${\text{TiSe}}_2$ in the charge-density wave phase from first principles
• The chiral phase transition in charge ordered 1T-TiSe2
• Chirality and Orbital Order in Charge Density Waves
• Phase diagram and collective excitation in excitonic insulator: from the orbital physics viewpoint
• Berry phase mechanism for optical gyrotropy in stripe-ordered cuprates
• Stripe and short range order in the charge density wave of 1T-Cu${}_x$TiSe${}_2$
• Chiral charge order in 1$T$-TiSe${}_2$: importance of lattice degrees of freedom
• Breaking symmetry with light: photo-induced chirality in a non-chiral crystal
• Chiral charge order in the superconductor 2H-TaS2
• Coexistence of bulk superconductivity and charge density wave in CuxZrTe3
• STM microscopy of the CDW in 1T-TiSe2 in the presence of single atom defects
• Electronic correlations stabilizing time-reversal broken chiral superconductivity in single-trilayer TiSe${}_2$
• Electrical switching of ferro-rotational order in nano-thick 1T-TaS${}_2$ crystals
• Charge-density wave induced by combined electron-electron and electron-phonon interactions in 1$T$-TiSe${}_2$: A variational Monte Carlo study
• Local Real-Space View of the Achiral 1$T$-TiSe${}_2$ 2 $\times$ 2 $\times$ 2 Charge Density Wave
• Scanning tunneling spectroscopy of layers of superconducting 2H-TaSe${}_{\text{2}}$: Evidence for a zero bias anomaly in single layers
• Proposed Chiral Texture of the Magnetic Moments of Unit-Cell Loop Currents in the Pseudogap Phase of Cuprate Superconductors
• Chiral charge density waves induced by Ti-doping in 1T-TaS2
• Semiconductor-metal phase transition and emergent charge density waves in 1T-ZrX${}_2$ (X = Se, Te) at the two-dimensional limit
• Effect of Cu intercalation and pressure on excitonic interaction in 1T-TiSe2
• Negative longitudinal magnetoresistance in the density wave phase of Y${}_2$Ir${}_2$O${}_7$
• Exciton condensation due to electron-phonon interaction
• Effects of the Spin-Orbit Coupling and the Superconductivity in simple-cubic alpha-Polonium
• Epi-two-dimensional fluid flow: a new topological paradigm for dimensionality
• Polar charge and orbital order in 2H-TaS2
• Correlation between electronic and structural orders in 1T-TiSe2
• Ultrafast dynamics in normal and Charge Density Wave phase of 2H-NbSe2
• Quantum phase transition in few-layer NbSe${}_2$ probed through quantized conductance fluctuations
• Ab initio study of the nonlinear optical properties and d.c. photocurrent of the Weyl semimetal TaIrTe${}_4$
• Electrical Stressing Induced Monolayer Vacancy Island Growth on TiSe2
• Elemental chalcogens as a minimal model for chiral charge and orbital order
• Understanding chiral charge-density wave by frozen chiral phonon
• Torque and temperature dependence of the hysteretic voltage-induced torsional strain in tantalum trisulfide
• Trigonal-to-monoclinic structural transition in TiSe${}_2$ due to a combined condensation of $\text{q}=(\frac{1}{2},0,0)$ and $(\frac{1}{2},0,\frac{1}{2})$ phonon instabilities
• Puzzling evidence for surface superconductivity in the layered dichalcogenide Cu${}_{10\%}$TiSe${}_2$
• Signature of Orbital Driven Finite Momentum Pairing in a 3D Ising Superconductor
• Observation of giant circular dichroism induced by electronic chirality
• Origin of chirality in transition-metal dichalcogenides
• Quantifying the Chirality of Vibrational Modes in Helical Molecular Chains
• Experimental consequences at high temperatures of quantum critical points
• Perturbation of charge density waves in 1T-TiSe${}_2$
• Lifshitz transition enabling superconducting dome around the quantum critical point in TiSe${}_2$
• Charge density wave modulated third-order nonlinear Hall effect in 1$T$-VSe${}_2$ nanosheets
• Incommensurate chirality density wave transition in a hybrid molecular framework
• Impact ionization dynamics in small band-gap 2D materials from a coherent phonon mechanism
• Lattice-Driven Chiral Charge Density Wave State in 1T-TaS${}_2$
• Optically induced symmetry breaking due to nonequilibrium steady state formation in charge density wave material 1T-TiSe2
• Two-dimensional chiral stacking orders in quasi-one-dimensional charge density waves
• Comment on "Charge-parity symmetry observed through Friedel oscillations in chiral charge-density waves" by J. Ishioka et al
• Chiral charge density wave and backscattering-immune orbital texture in monolayer 1T-TiTe2
• Non-chiral 1T-TiSe2 creates circular dichroism in resonant X-ray diffraction via multipole scattering interference
• Photo-induced Dynamics and Momentum Distribution of Chiral Charge Density Waves in 1T-TiSe${}_2$
• Electronic band structure in pristine and Sulfur-doped Ta${}_2$NiSe${}_5$
• Cluster charge-density-wave glass in hydrogen-intercalated TiSe${}_2$
• Electron-phonon-dominated charge-density-wave fluctuations in TiSe${}_2$ accessed by ultrafast nonequilibrium dynamics
• Doping-induced nematic and stripe orders within the charge density wave state of TiSe${}_2$
• Orbital-selective time-domain signature of nematicity dynamics in the charge-density-wave phase of La${}_{1.65}$Eu${}_{0.2}$Sr${}_{0.15}$CuO${}_4$
• Symmetry breaking states in the half-filled two-orbital Hubbard model with crystalline electric field
• Revisiting the charge-density-wave superlattice of 1$T$-TiSe${}_2$
• Quantum fluctuation energies over a spatially inhomogeneous field background in a chiral soliton model
• Metal-to-insulator transition in Pt-doped TiSe${}_2$ driven by emergent network of narrow transport channels
• Realignment of the charge-density wave in TiSe${}_2$ by variation of the conduction band population