Quasi one-dimensional metallic band dispersion in the commensurate charge density wave of $1T$-TaS${}_2$

Abstract

The commensurate charge density wave (CDW) in the layered compound $1T$-TaS${}_2$ has hitherto mostly been treated as a quasi two-dimensional phenomenon. Recent band structure calculations have, however, predicted that the CDW coexists with a nearly one-dimensional metallic dispersion perpendicular to the crystal planes. Using synchrotron radiation based angle-resolved photoemission spectroscopy, we show that this metallic band does in fact exist. Its occupied band width is in excellent agreement with predictions for a simple ${\tau }_c$ stacking order of the CDW between adjacent layers and its periodicity in the $c$ direction is $2\pi /c$.

5 pages, 4 figures

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Cited by in corpus (26)

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• Phonon-assisted magnetic Mott-insulating state in the charge density wave phase of single-layer 1TNbSe2
• Visualization of Chiral Electronic Structure and Anomalous Optical Response in a Material with Chiral Charge Density Waves
• Charge-density-wave phase, mottness and ferromagnetism in monolayer $1T$-NbSe${}_2$
• Preferential out-of-plane conduction and quasi-one-dimensional electronic states in layered 1T-TaS2
• Identification of the Mott insulating CDW state in 1T-TaS${}_2$
• Charge density wave and spin $1/2$ insulating state in single layer 1T-NbS${}_2$
• Epitaxial single layer NbS${}_2$ on Au(111): synthesis, structure, and electronic properties
• Charge density wave induced nodal lines in LaTe${}_3$
• Surface structure and stacking of the commensurate $\left(\sqrt{13}\times \sqrt{13}\right)$R13.9° charge density wave phase of 1T-TaS${}_2$(0001)
• $\text{Ab initio}$ theory of magnetism in two-dimensional $1T$-TaS${}_2$
• Spin-orbit and exchange proximity couplings in graphene/1T-TaS${}_2$ heterostructure triggered by a charge density wave
• Modified interlayer stacking and insulator to correlated-metal transition driven by uniaxial strain in 1$T$-TaS${}_2$
• Local and non-local electron dynamics of Au/Fe/MgO(001) heterostructures analyzed by time-resolved two-photon photoemission spectroscopy
• Doublon bottleneck in the ultrafast relaxation dynamics of hot electrons in 1T-TaS_2
• Experimental Evidence of Stable 2$H$ Phase on the Surface of Layered 1$T^{\prime }$-TaTe${}_2$
• Charge density wave surface reconstruction in a van der Waals layered material
• Role of a higher dimensional interaction in stabilizing charge density waves in quasi-1D NbSe${}_3$ revealed by angle-resolved photoemission spectroscopy
• Spectrally resolving the phase and amplitude of coherent phonons in the charge density wave state of 1$T$-TaSe${}_2$
• One-dimensional electronic states in a natural misfit structure
• Renormalization of the Mott gap by lattice entropy: The case of 1T-TaS2
• Distinguishing and controlling Mottness in 1T-TaS${}_2$ by ultrafast light
• Probing enhanced superconductivity in van der Waals polytypes of V${}_x$TaS${}_2$
• Topical review: the nature of the ground state and possibility of a quantum spin liquid in 1T metal dichalcogenides
• Comment on "Identification of the Mott Insulating Charge Density Wave State in $1T$-TaS${}_2$"