Measurement of collective excitations in VO${}_2$ by resonant inelastic X-ray scattering

Abstract

Vanadium dioxide is of broad interest as a spin-1/2 electron system that realizes a metal-insulator transition near room temperature, due to a combination of strongly correlated and itinerant electron physics. Here, resonant inelastic X-ray scattering is used to measure the excitation spectrum of charge, spin, and lattice degrees of freedom at the vanadium L-edge under different polarization and temperature conditions. These spectra reveal the evolution of energetics across the metal-insulator transition, including the low temperature appearance of a strong candidate for the singlet-triplet excitation of a vanadium dimer.

arXiv comment5 pages, 4 figures

References in corpus (14)

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• Charge-orbital-lattice coupling effects in the dd-excitation profile of one dimensional cuprates
• Lattice coupling and Franck-Condon effects in K-edge resonant inelastic X-ray scattering
• Experimental signatures of phase interference and sub-femtosecond time dynamics on the incident energy axis of resonant inelastic X-ray scattering

Cited by in corpus (6)

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• Resonant inelastic x-ray incarnation of Young's double-slit experiment
• Dynamic electronic correlation effects in NbO${}_2$ as compared to VO${}_2$
• Orbital dynamics during an ultrafast insulator to metal transition
• Quasimolecular electronic structure of the spin-liquid candidate Ba${}_3$InIr${}_2$O${}_9$
• Prediction for the singlet-triplet excitation energy for the spinel MgTi${}_2$O${}_4$ using first-principles diffusion Monte Carlo