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Quasi-one-dimensional systems exhibit many-body effects elusive in higher dimensions. A prime example is spin-orbital separation, which has been measured by resonant inelastic X-ray scattering (RIXS) in Sr$_2$CuO$_3$. Here, we theoretically…

Strongly Correlated Electrons · Physics 2022-10-03 Aaron Müller , Francesco Grandi , Martin Eckstein

Element- and site-specific resonant inelastic x-ray scattering spectroscopy (RIXS) is employed to investigate electron correlation effects in {$\rm NaV_2O_5$}. In contrast to single photon techniques, RIXS at the vanadium $L_3$ edge is able…

Strongly Correlated Electrons · Physics 2009-11-07 G. P. Zhang , T. A. Callcott , G. T. Woods , L. Lin , Brian Sales , D. Mandrus , J. He

Using the tight-binding linear muffin-tin orbitals method, the soft x-ray fluorescence K-emission spectra of boron in MgB_2, excited close to the absorption edge, are estimated. In the calculations the angle of incidence between the…

Superconductivity · Physics 2009-11-10 K. Kokko , V. Kulmala , J. A. Leiro , W. Hergert

We develop a theory of resonant inelastic x-ray scattering (RIXS) at the $K$ edge in La$_2$CuO$_4$ on the basis of the Keldysh Green's function formalism. In our previous analysis (Phys. Rev. B 71, 035110 (2005)), the scattering by the…

Strongly Correlated Electrons · Physics 2015-06-25 Jun-ichi Igarashi , Takuji Nomura , Manabu Takahashi

We theoretically demonstrate that a resonant inelastic x-ray scattering (RIXS) with a sizable momentum transfer can be utilized to study valence band dispersion for broad band materials. We take RIXS at the Si K edge of 3C-SiC as a typical…

Materials Science · Physics 2009-09-21 Yunori Nisikawa , Muneharu Ibuki , Manabu Usuda

Recent experiments on La$_2$CuO$_4$ suggest that indirect resonant inelastic X-ray scattering (RIXS) might provide a probe for transversal spin dynamics. We present in detail a systematic expansion of the relevant magnetic RIXS cross…

Strongly Correlated Electrons · Physics 2011-07-22 Filomena Forte , Luuk J. P. Ament , Jeroen van den Brink

Continued improvement of the energy resolution of resonant inelastic x-ray scattering (RIXS) spectrometers is crucial for fulfilling the potential of this technique in the study of electron dynamics in materials of fundamental and…

Instrumentation and Detectors · Physics 2017-09-11 Jungho Kim , D. Casa , Ayman Said , Richard Krakora , B. J. Kim , Elina Kasman , Xianrong Huang , T. Gog

The community currently lacks a complete understanding of how resonant inelastic x-ray scattering (RIXS) experiments probe the electron-phonon ($e$-ph) interaction in solids. For example, most theoretical models of this process have focused…

Strongly Correlated Electrons · Physics 2022-05-25 Krzysztof Bieniasz , Steve Johnston , Mona Berciu

We study the magnetic excitation spectra in L-edge resonant inelastic x-ray scattering (RIXS) from undoped cuprates. We analyze the second-order dipole allowed process that the strong perturbation works through the intermediate state in…

Strongly Correlated Electrons · Physics 2013-05-30 Jun-ichi Igarashi , Tatsuya Nagao

We compute the $K$ and $L_{3}$ -edge resonant inelastic x-ray scattering (RIXS) spectrum of the columnar and the staggered quantum dimer states accessible to the square lattice Heisenberg magnet. Utilizing a bond operator representation…

Strongly Correlated Electrons · Physics 2020-02-03 Meiyu He , Trinanjan Datta , Dao-Xin Yao

We present a computation of Cu K-edge resonant inelastic x-ray scattering (RIXS) spectra for electron-doped cuprates which includes coupling to bosonic fluctuations. Comparison with experiment over a wide range of energy and momentum…

Strongly Correlated Electrons · Physics 2012-02-09 Susmita Basak , Tanmoy Das , Hsin Lin , M. Z. Hasan , R. S. Markiewicz , A. Bansil

Resonant Inelastic X-Ray Scattering (RIXS) experiments on the iron-based ladder BaFe$_2$Se$_3$ unveiled an unexpected two-peak structure associated with local orbital ($dd$) excitations in a block-type antiferromagnetic phase. A mixed…

Strongly Correlated Electrons · Physics 2019-07-02 Niravkumar D. Patel , Alberto Nocera , Gonzalo Alvarez , Adriana Moreo , Steven Johnston , Elbio Dagotto

We propose that resonant inelastic X-ray scattering (RIXS) is an effective probe of the fractionalized excitations in three-dimensional (3D) Kitaev spin liquids. While the non-spin-conserving RIXS responses are dominated by the gauge-flux…

Strongly Correlated Electrons · Physics 2017-09-06 Gábor B. Halász , Brent Perreault , Natalia B. Perkins

Resonant inelastic x-ray scattering (RIXS) is a widely used spectroscopic technique, providing access to the electronic structure and dynamics of atoms, molecules, and solids. However, RIXS requires a narrow bandwidth x-ray probe to achieve…

We propose a general scheme for the derivation of the signals resonant inelastic (and elastic) x-ray scattering (RIXS) gives access to. In particular, we find that RIXS should allow to directly detect many hidden orders, such as spin…

Strongly Correlated Electrons · Physics 2015-06-17 Lucile Savary , T. Senthil

Resonant inelastic x-ray scattering (RIXS) at the copper K absorption edge has been performed for heavily overdoped samples of La$_{2-x}$Sr$_{x}$CuO$_{4}$ with $x= 0.25$ and 0.30. We have observed the charge transfer and molecular-orbital…

Superconductivity · Physics 2009-11-11 S. Wakimoto , Young-June Kim , Hyunkyung Kim , H. Zhang , T. Gog , R. J. Birgeneau

The excitations in honeycomb $\alpha$-Li$_2$IrO$_3$ have been investigated with high-resolution resonant inelastic x-ray scattering (RIXS) at the O K edge. The low-energy response is dominated by a fully resolved ladder of excitations,…

Results of model calculations using exact diagonalization reveal the orbital character of states associated with different Raman loss peaks in Cu $K$-edge resonant inelastic X-ray scattering (RIXS) from La$_{2}$CuO$_{4}$. The model includes…

We analyze resonant inelastic x-ray scattering (RIXS) at the Cu K edge in a typical orbital-ordered compound KCuF3 on the basis of a microscopic theory. Spectral shape and its dependence on polarization direction and momentum transfer of…

Strongly Correlated Electrons · Physics 2014-06-20 Takuji Nomura

We present an ab initio theory of core- and valence resonant inelastic x-ray scattering (RIXS) based on a real-space multiple scattering Green's function formalism and a quasi-boson model Hamiltonian. Simplifying assumptions are made which…

Materials Science · Physics 2011-01-25 J. J. Kas , J. J. Rehr , J. A. Soininen , P. Glatzel
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