Polarization resolved Cu $L_3$-edge resonant inelastic x-ray scattering of orbital and spin excitations in NdBa${}_2$Cu${}_3$O${}_{7-\delta }$

Abstract

High resolution resonant inelastic x-ray scattering (RIXS) has proven particularly effective in the determination of crystal field and spin excitations in cuprates. Its strength lies in the large Cu $L_3$ resonance and in the fact that the scattering cross section follows quite closely the single-ion model predictions, both in the insulating parent compounds and in the superconducting doped materials. However, the spectra become increasingly broader with (hole) doping, hence resolving and assigning spectral features has proven challenging even with the highest energy resolution experimentally achievable. Here we have overcome this limitation by measuring the complete polarization dependence of the RIXS spectra as function of momentum transfer and doping in thin films of NdBa${}_2$Cu${}_3$O${}_{7-\delta }$. Besides confirming the previous assignment of $dd$ and spin excitations (magnon, bimagnon) in the antiferromagnetic insulating parent compound, we unequivocally single out the actual spin-flip contribution at all dopings. We also demonstrate that the softening of $dd$ excitations is mainly attributed to the shift of the $xy$ peak to lower energy loss. These results provide a definitive assessment of the RIXS spectra of cuprates and demonstrate that RIXS measurements with full polarization control are practically feasible and highly informative.

arXiv comment14 pages, 10 figures

References in corpus (37)

• A Common Thread: the pairing interaction for the unconventional superconductors
• Resonant Inelastic X-ray Scattering Studies of Elementary Excitations
• Long-range incommensurate charge fluctuations in (Y,Nd)Ba2Cu3O(6+x)
• Intense paramagnon excitations in a large family of high-temperature superconductors
• Spin-Orbital Separation in the quasi 1D Mott-insulator Sr2CuO3
• Persistence of magnetic excitations in La2-xSrxCuO4 from the undoped insulator to the heavily overdoped non-superconducting metal
• Two-Orbital Model Explains the Higher Transition Temperature of the Single-Layer Hg-Cuprate Superconductor Compared to That of the La-Cuprate Superconductor
• Resonant X-rays at the Cu L-edge as a momentum dependent probe of the magnetic excitation spectrum in cuprates
• Theory of Resonant Inelastic X-ray Scattering by Collective Magnetic Excitations
• Energy and symmetry of $dd$ excitations in undoped layered cuprates measured by Cu $L_3$ resonant inelastic x-ray scattering
• Three dimensional collective charge excitations in electron-doped cuprate superconductors
• Persistent spin excitations in doped antiferromagnets revealed by resonant inelastic light scattering
• Dispersive charge density wave excitations and temperature dependent commensuration in Bi2Sr2CaCu2O8+δ
• Asymmetry of collective excitations in electron and hole doped cuprate superconductors
• Influence of apical oxygen on the extent of in-plane exchange interaction in cuprate superconductors
• Re-entrant charge order in overdoped (Bi,Pb)${}_{2.12}$Sr${}_{1.88}$CuO${}_{6+\delta }$ outside the pseudogap regime
• High-energy spin and charge excitations in electron-doped copper oxide superconductors
• Dispersive spin excitations in highly overdoped cuprates revealed by resonant inelastic x-ray scattering
• Determining the Electron-Phonon Coupling Strength in Correlated Electron Systems from Resonant Inelastic X-ray Scattering
• High-temperature charge density wave correlations in La${}_{1.875}$Ba${}_{0.125}$CuO${}_4$ without spin-charge locking
• High-energy magnetic excitations in Bi${}_2$Sr${}_2$CaCu${}_2$O${}_{8+\delta }$: Towards a unified description of the electronic and magnetic degrees of freedom in the cuprates
• Directly characterizing the relative strength and momentum dependence of electron-phonon coupling using resonant inelastic x-ray scattering
• Momentum Dependence of Charge Excitations in the Electron-Doped Superconductor Nd1.85Ce0.15CuO4: a RIXS Study
• Bimagnon studies in cuprates with Resonant Inelastic X-ray Scattering at the O K edge. I - An assessment on La2CuO4 and a comparison with the excitation at Cu L3 and Cu K edges
• Dispersion, damping, and intensity of spin excitations in the single-layer (Bi,Pb)${}_2$(Sr,La)${}_2$CuO${}_{6+\delta }$ cuprate superconductor family
• The simultaneous measurement of energy and linear polarization of the scattered radiation in resonant inelastic soft x-ray scattering
• Charge-orbital-lattice coupling effects in the dd-excitation profile of one dimensional cuprates
• Coupling between dynamic magnetic and charge-order correlations in the cuprate superconductor Nd${}_{2-x}$Ce${}_x$CuO${}_4$
• Observation of a dispersive charge mode in hole-doped cuprates using resonant inelastic x-ray scattering at the oxygen K edge
• Doping dependence of charge-transfer excitations in La_{2-x}Sr_xCuO_4
• Crossover from Collective to Incoherent Spin Excitations in Superconducting Cuprates Probed by Detuned Resonant Inelastic X-ray Scattering
• Magnetic excitations and phonons simultaneously studied by resonant inelastic x-ray scattering in optimally doped Bi${}_{1.5}$Pb${}_{0.55}$Sr${}_{1.6}$La${}_{0.4}$CuO${}_{6+\delta }$
• High-resolution resonant inelastic soft X-ray scattering as a probe of the crystal electrical field in lanthanides demonstrated for the case of CeRh2Si2
• A determination of the pairing interaction in the high Tc cuprate superconductor Tl2Ba2CaCu2O8 (Tl2212)
• Resolving the nature of electronic excitations in resonant inelastic x-ray scattering
• Resonant inelastic X-ray scattering study of intra-band charge excitations in hole-doped high-Tc cuprates
• Electronic and magnetic excitations in the "half-stuffed" Cu--O planes of Ba${}_2$Cu${}_3$O${}_4$Cl${}_2$ measured by resonant inelastic x-ray scattering

Cited by in corpus (40)

• Electronic and magnetic excitations in La${}_3$Ni${}_2$O${}_7$
• Orbital and Spin Character of Doped Carriers in Infinite-Layer Nickelates
• Experimental Determination of Momentum-Resolved Electron-Phonon Coupling
• Superconductivity in high-$T_c$ and related strongly correlated systems from variational perspective: Beyond mean field theory
• Enhanced electron-phonon coupling for charge-density-wave formation in La${}_{1.8-x}$Eu${}_{0.2}$Sr${}_x$CuO${}_{4+\delta }$
• Signature of quantum criticality in cuprates by charge density fluctuations
• Determining the Electron-Phonon Coupling in Superconducting Cuprates by Resonant Inelastic X-ray Scattering: Methods and Results on Nd${}_{1+x}$Ba${}_{2-x}$Cu${}_3$O${}_{7-\delta }$
• Anisotropic damping of the spin fluctuations in doped La2-xSrxCuO4 studied by resonant inelastic x-ray scattering
• Gapped collective charge excitations and interlayer hopping in cuprate superconductors
• Multiple-magnon excitations shape the spin spectrum of cuprate parent compounds
• High-resolution resonant inelastic x-ray scattering study of the electron-phonon coupling in honeycomb $\alpha$-Li${}_2$IrO${}_3$
• Fractional spin excitations in the infinite-layer cuprate CaCuO${}_2$
• A unified theory of spin and charge excitations in high-$T_c$ cuprates: Quantitative comparison with experiment and interpretation
• Dynamical spin susceptibility in La2CuO4 studied by resonant inelastic x-ray scattering
• Three-body bound states in antiferromagnetic spin ladders
• Description of resonant inelastic x-ray scattering in correlated metals
• Mobile orbitons in Ca${}_2$CuO${}_3$: crucial role of the Hund's exchange
• Unraveling higher-order corrections in the spin dynamics of RIXS spectra
• Collective nature of orbital excitations in layered cuprates in the absence of apical oxygens
• Plasmon dispersion in bilayer cuprate superconductors
• Orbital Symmetry and Orbital Excitations in High-$T_c$ Superconductors
• Disparate exciton-phonon couplings for zone center and boundary phonons in solid-state graphite
• Robust spin and charge excitations throughout high-$T_c$-cuprate phase diagram from incipient Mottness
• Crossover of the high-energy spin fluctuations from collective triplons to localized magnetic excitations in doped Sr14-xCaxCu24O41 cuprate ladders
• Resonant inelastic x-ray scattering study of vector chiral ordered kagome antiferromagnet
• Crystalline and magnetic structure of Ba2CuO3+δ investigated by x-ray absorption spectroscopy and resonant inelastic x-ray scattering
• Unravelling the Nature of Spin Excitations Disentangled from Charge Contributions in a Doped Cuprate Superconductor
• Paramagnon dispersion and damping in doped Na${}_x$Ca${}_{2-x}$CuO${}_2$Cl${}_2$
• Universal collective modes from strong electronic correlations: Modified $1/{\mathcal{N}}_f$ theory with application to high-$T_c$ cuprates
• Capping effects on spin and charge excitations in parent and superconducting Nd1-xSrxNiO2
• Exploring itinerant states in divalent hexaborides using rare-earth $L$ edge resonant inelastic X-ray scattering
• Collective spin and charge excitations in the $t$-$J$-$U$ model of high-$T_c$ cuprates
• Evolution of the magnetic excitations in electron-doped ${\mathrm{La}}_{2-x}{\mathrm{Ce}}_x{\mathrm{CuO}}_4$
• Detection of a two-phonon mode in a cuprate superconductor via polarimetric RIXS
• Theoretical analysis of multi-magnon excitations in resonant inelastic x-ray scattering spectra of two-dimensional antiferromagnets
• Polarization dependency in Resonant Inelastic X-Ray Scattering
• Dynamic charge order from strong correlations in the cuprates
• Composite antiferromagnetic and orbital order with altermagnetic properties at a cuprate/manganite interface
• Electron-hole asymmetry of quantum collective excitations in high-$T_c$ copper oxides
• Probing d-wave superconducting gap of high-$T_{\mathrm{c}}$ cuprate ${\mathrm{Bi}}_2{\mathrm{Sr}}_2{\mathrm{Ca}}_2{\mathrm{Cu}}_3{\mathrm{O}}_{10+\delta }$ by resonant inelastic X-ray scattering