Short-range phase coherence and origin of the 1T-TiSe2 charge density wave

Abstract

The impact of variable Ti self-doping on the 1T-TiSe2 charge density wave (CDW) is studied by scanning tunneling microscopy. Supported by density functional theory we show that agglomeration of intercalated-Ti atoms acts as preferential nucleation centers for the CDW that breaks up in phaseshifted CDW domains whose size directly depends on the intercalated-Ti concentration and which are separated by atomically-sharp phase boundaries. The close relationship between the diminution of the CDW domain size and the disappearance of the anomalous peak in the temperature dependent resistivity allows to draw a coherent picture of the 1T-TiSe2 CDW phase transition and its relation to excitons.

arXiv comment5 pages, 4 figures

References in corpus (10)

• Superconductivity in Cu_xTiSe_2
• Evidence for an excitonic insulator phase in 1T-TiSe${}_2$
• Non-thermal separation of electronic and structural orders in a persisting charge density wave
• Emergence of coherence in the charge-density wave state of 2H-NbSe${}_2$
• Electron-Phonon Coupling and the Soft Phonon Mode in TiSe${}_2$
• Doping nature of native defects in 1T-TiSe2
• Impact of Electron-Hole Correlations on the 1T-TiSe2 Electronic Structure
• An Alternative Interpretation of Recent ARPES Measurements on TiSe2
• STM microscopy of the CDW in 1T-TiSe2 in the presence of single atom defects
• Exciton condensation due to electron-phonon interaction

Cited by in corpus (28)

• Influence of domain walls in the incommensurate charge density wave state of Cu intercalated 1$T$-TiSe${}_2$
• Ultrafast charge ordering by self-amplified exciton-phonon dynamics in TiSe${}_2$
• Mechanisms of electron-phonon coupling unraveled in momentum and time: The case of soft-phonons in TiSe${}_2$
• Stripe and short range order in the charge density wave of 1T-Cu${}_x$TiSe${}_2$
• Exciton-phonon cooperative mechanism of the triple-$q$ charge-density-wave and antiferroelectric electron polarization in TiSe${}_2$
• Local Real-Space View of the Achiral 1$T$-TiSe${}_2$ 2 $\times$ 2 $\times$ 2 Charge Density Wave
• On the origin of the anomalous peak in the resistivity of TiSe${}_2$
• Semimetal-to-semiconductor transition and charge-density-wave melting in $1T$-TiSe${}_{2-x}$S${}_x$ single crystals
• Semiconductor-metal phase transition and emergent charge density waves in 1T-ZrX${}_2$ (X = Se, Te) at the two-dimensional limit
• Effect of synthesis conditions on the electrical resistivity of TiSe${}_2$
• Charge Density Wave Hampers Exciton Condensation in 1T-TiSe${}_2$
• Holographic imaging of the complex charge density wave order parameter
• Dramatic Plasmon Response to the Charge-Density-Wave Gap Development in $1\text{T}-{\mathrm{TiSe}}_2$
• Unveiling the Charge Density Wave Inhomogeneity and Pseudogap State in 1T-TiSe2
• Correlation between electronic and structural orders in 1T-TiSe2
• Energy-dependent spatial texturing of the charge order in $1T$-Cu${}_x$TiSe${}_2$
• Local resilience of the $1T$-TiSe${}_2$ charge density wave to Ti self-doping
• Phase Separation in the Vicinity of Fermi Surface Hot Spots
• Emergent superconductivity upon disordering a charge density wave ground state
• Van der Waals Schottky barriers as interface probes of the correlation between chemical potential shifts and charge density wave formation in 1T-TiSe${}_2$ and 2H-NbSe${}_2$
• Perturbation of charge density waves in 1T-TiSe${}_2$
• Carrier-Density Control of the Quantum-Confined 1$T$-TiSe${}_2$ Charge-Density-Wave
• Spectroscopic fingerprints of many-body renormalizations in$1T$-TiSe${}_2$
• Alloying 2D VSe2 with Pt: from a charge density wave state to a disordered insulator
• Evidence of anisotropic three-dimensional weak-localization in TiSe${}_2$ nanoflakes
• Metal-to-insulator transition in Pt-doped TiSe${}_2$ driven by emergent network of narrow transport channels
• Melting point depression of charge density wave in 1T-TiSe${}_2$ due to size effects
• Multiband charge density wave exposed in a transition metal dichalcogenide