Chirality and Orbital Order in Charge Density Waves

Abstract

We show that the recently observed chirality in the charge ordered phase of TiSe2 can be understood as a form of orbital ordering. The microscopic mechanism driving the transition between the novel chiral state and the non-chiral charge density wave is discussed, and shown to be of a general form, thus allowing for a broad class of materials to display this type of orbitally ordered chiral charge density wave.

4 pages, 4 figures

References in corpus (2)

• Evidence for an excitonic insulator phase in 1T-TiSe${}_2$
• Charge density wave and superconducting dome in TiSe2 from electron-phonon interaction

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• Chiral charge order in the superconductor 2H-TaS2
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• Charge-density wave induced by combined electron-electron and electron-phonon interactions in 1$T$-TiSe${}_2$: A variational Monte Carlo study
• Charge Order in NbSe${}_2$
• Crisscrossed stripe order from interlayer tunneling in hole-doped cuprates
• Semiconductor-metal phase transition and emergent charge density waves in 1T-ZrX${}_2$ (X = Se, Te) at the two-dimensional limit
• Chiral charge density waves induced by Ti-doping in 1T-TaS2
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• Polar charge and orbital order in 2H-TaS2
• Correlation between electronic and structural orders in 1T-TiSe2
• Observation of orbital order in the Van der Waals material 1T-TiSe2
• Elemental chalcogens as a minimal model for chiral charge and orbital order
• Understanding chiral charge-density wave by frozen chiral phonon
• 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
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• Signature of Orbital Driven Finite Momentum Pairing in a 3D Ising Superconductor
• Origin of chirality in transition-metal dichalcogenides
• Observation of giant circular dichroism induced by electronic chirality
• Optically induced symmetry breaking due to nonequilibrium steady state formation in charge density wave material 1T-TiSe2
• Lattice-Driven Chiral Charge Density Wave State in 1T-TaS${}_2$
• Chiral charge density wave and backscattering-immune orbital texture in monolayer 1T-TiTe2
• Comment on "Charge-parity symmetry observed through Friedel oscillations in chiral charge-density waves" by J. Ishioka et al
• In-plane anisotropy of charge density wave fluctuations in 1$T$-TiSe${}_2$
• Photo-induced Dynamics and Momentum Distribution of Chiral Charge Density Waves in 1T-TiSe${}_2$
• Fingerprints of entangled spin and orbital physics in itinerant ferromagnets via angle resolved $resonant$ photoemission
• Chalcogenic orbital density waves in weak and strong coupling limit
• Doping-induced nematic and stripe orders within the charge density wave state of TiSe${}_2$
• Realignment of the charge-density wave in TiSe${}_2$ by variation of the conduction band population
• Revisiting the charge-density-wave superlattice of 1$T$-TiSe${}_2$