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Resonant inelastic X-ray scattering (RIXS) spectra of model copper- and nickel-based transition metal oxides are measured over a wide range of energies near the M-edge (h$\nu$=60-80eV) to better understand the properties of resonant…

Strongly Correlated Electrons · Physics 2012-11-20 L. Andrew Wray , Wanli Yang , Hiroshi Eisaki , Zahid Hussain , Yi-De Chuang

Excitons in a complex organic molecular crystal were studied by inelastic x-ray scattering (IXS) for the first time. The dynamic dielectric response function is measured over a large momentum transfer region, from which an exciton…

Other Condensed Matter · Physics 2007-05-23 K. Yang , L. P. Chen , Y. Q. Cai , N. Hiraoka , S. Li , J. F. Zhao , D. W. Shen , H. F. Song , H. Tian , L. H. Bai , Z. H. Chen , Z. G. Shuai , D. L. Feng

We develop a phenomenological theory to predict the characteristic features of the momentum-dependent scattering amplitude in resonant inelastic x-ray scattering (RIXS) at the energy scale of the superconducting gap in iron-based…

Superconductivity · Physics 2016-05-10 Pasquale Marra , Jeroen van den Brink , Steffen Sykora

We present a formalism for the resonant inelastic x-ray scattering (RIXS) cross section. The resulting compact expression in terms of polarizability matrix elements, particularly lends itself to the implementation in an all-electron…

Materials Science · Physics 2022-08-17 Christian Vorwerk , Francesco Sottile , Claudia Draxl

A spectrometer for resonant inelastic X-ray scattering (RIXS) is proposed where imaging and dispersion actions in two orthogonal planes are combined to deliver full two-dimensional map of RIXS intensity in one shot with parallel detection…

Instrumentation and Detectors · Physics 2009-09-29 V. N. Strocov

Orbital degrees of freedom play a major role in the physics of many strongly correlated transition metal compounds. However, they are still very difficult to access experimentally, in particular by neutron scattering. We propose here how to…

Strongly Correlated Electrons · Physics 2015-04-28 Pasquale Marra

The low energy excitations in Na2IrO3 have been investigated using resonant inelastic x-ray scattering (RIXS). A magnetic excitation branch can be resolved, whose dispersion reaches a maximum energy of about 35 meV at the \Gamma-point. The…

Strongly Correlated Electrons · Physics 2013-07-08 H. Gretarsson , J. P. Clancy , Yogesh Singh , P. Gegenwart , J. P. Hill , Jungho Kim , M. H. Upton , A. H. Said , D. Casa , T. Gog , Young-June Kim

We use Ru $L_3$-edge resonant inelastic x-ray scattering (RIXS) to study the full range of excitations in Ca$_3$Ru$_2$O$_7$ from meV-scale magnetic dynamics through to the eV-scale interband transitions. This bilayer $4d$-electron…

Strongly Correlated Electrons · Physics 2021-02-10 J. Bertinshaw , M. Krautloher , H. Suzuki , H. Takahashi , A. Ivanov , B. J. Kim , H. Gretarsson , B. Keimer

We report resonant inelastic X-ray scattering (RIXS) measurements on ordered double perovskite samples containing Re$^{5+}$ and Ir$^{5+}$ with $5d^2$ and $5d^4$ electronic configurations respectively. In particular, the observed RIXS…

Strongly Correlated Electrons · Physics 2017-06-14 Bo Yuan , J. P. Clancy , A. M. Cook , C. M. Thompson , J. Greedan , G. Cao , B. -C. Jeon , T. -W. Noh , M. H. Upton , D. Casa , T. Gog , Arun Paramekanti , Young-June Kim

We present a study of resonant inelastic X-ray scattering (RIXS) spectra collected at the rare-earth $L$ edges of divalent hexaborides YbB$_6$ and EuB$_6$. In both systems, RIXS-active features are observed at two distinct resonances…

Resonant x-ray scattering is performed near the Mn K-absorption edge for an epitaxial thin film of BiMnO3. The azimuthal angle dependence of the resonant (003) peak (in monoclinic indices) is measured with different photon polarizations;…

Materials Science · Physics 2009-11-11 C. -H. Yang , J. Koo , C. Song , T. Y. Koo , K. -B. Lee , Y. H. Jeong

Young's archetypal double-slit experiment forms the basis for modern diffraction techniques: the elastic scattering of waves yields an interference pattern that captures the real-space structure. Here, we report on an inelastic incarnation…

A resonant inelastic x-ray scattering study of the electronic structure of the semiconductor cuprous oxide, $\rm Cu_2O$, is reported. When the incident x-ray energy is tuned to the Cu K-absorption edge, large enhancements of the spectral…

Materials Science · Physics 2012-06-18 Young-June Kim , J. P. Hill , H. Yamaguchi , T. Gog , D. Casa

We report an Fe $L$-edge resonant inelastic x-ray scattering (RIXS) study of the unusual superconductor $\beta$-FeSe. The high energy resolution of this RIXS experiment ($\approx\,$55$\,$meV FWHM) made it possible to resolve low-energy…

Superconductivity · Physics 2019-01-16 M. C. Rahn , K. Kummer , N. B. Brookes , A. A. Haghighirad , K. Gilmore , A. T. Boothroyd

Resonant inelastic x-ray scattering (RIXS) has become a prominent technique to study quasiparticle excitations. With advances in polarization analysis capabilities at different facilities, RIXS offers exceptional potential for investigating…

We examine the momentum-dependent excitation spectra of indirect as well as direct resonant inelastic x-ray scattering (RIXS) processes in half-filled (extended) Hubbard rings. We determine the fundamental features of the groundstate RIXS…

Strongly Correlated Electrons · Physics 2012-03-02 Stefanos Kourtis , Jeroen van den Brink , Maria Daghofer

Generic low-energy spectral features related to $d$-$d$ excitations in nearly cubic vanadium perovskites are predicted for the expected $L$-edge resonant inelastic X-ray scattering (RIXS) measurements. Model Hamiltonian describing local…

Strongly Correlated Electrons · Physics 2013-01-22 V. Yushankhai , L. Siurakshina

Thanks to high resolution and polarization analysis, resonant inelastic x-ray scattering (RIXS) magnetic spectra of La2CuO4, Sr2CuO2Cl2 and CaCuO2 reveal a rich set of properties of the spin 1/2 antiferromagnetic square lattice of cuprates.…

We study two-magnon excitations in resonant inelastic x-ray scattering (RIXS) at the transition-metal $K$-edge. Instead of working with effective Heisenberg spin models, we work with a Hubbard-type model ($d$-$p$ model) for a typical…

Strongly Correlated Electrons · Physics 2017-10-18 Takuji Nomura

In indirect resonant inelastic X-ray scattering (RIXS) an intermediate state is created with a core-hole that has a ultrashort lifetime. The core-hole potential therefore acts as a femtosecond pulse on the valence electrons. We show that…

Strongly Correlated Electrons · Physics 2009-11-11 Luuk J. P. Ament , Filomena Forte , Jeroen van den Brink