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We study the resonant x-ray scattering (RXS) spectra of CeB_{6} in an antiferroquadrupole (AFQ) ordering phase, near the Ce L_3 edge under the applied magnetic field H // (-1,1,0). On the basis of a localized electron model equipped with a…

Strongly Correlated Electrons · Physics 2010-07-13 Tatsuya Nagao , Jun-ichi Igarashi

We study the electric quadrupole (E2) contribution to resonant x-ray scattering (RXS). Under the assumption that the rotational invariance is preserved in the Hamiltonian describing the intermediate state of scattering, we derive a useful…

Strongly Correlated Electrons · Physics 2009-11-11 Tatsuya Nagao , Jun-ichi Igarashi

X-ray resonant scattering at the K-edge of transition metal oxides is shown to measure the orbital order parameter, supposed to accompany magnetic ordering in some cases. Virtual transitions to the 3d-orbitals are quadrupolar in general. In…

Strongly Correlated Electrons · Physics 2009-10-30 Michele Fabrizio , Massimo Altarelli , Maurizio Benfatto

Resonant x-ray scattering (RXS) experiment has been performed for the (3 0 1.5) superlattice reflection in the antiferroquadrupolar and antiferromagnetic phase of DyB2C2. Azimuthal-angle dependence of the resonance enhanced intensities for…

Strongly Correlated Electrons · Physics 2009-11-10 Takeshi Matsumura , Daisuke Okuyama , Nobuyuki Oumi , Kazuma Hirota , Hironori Nakao , Youichi Murakami , Yusuke Wakabayashi

We study resonant x-ray scattering (RXS) at Np M_{4,5} edges in the triple-\textbf{k} multipole ordering phase in NpO_{2}, on the basis of a localized electron model. We derive an expression for RXS amplitudes to characterize the spectra…

Strongly Correlated Electrons · Physics 2015-06-25 Tatsuya Nagao , Jun-ichi Igarashi

We report resonant elastic X-ray scattering (REXS) of long-range magnetic order in EuPtSi$_{\text{3}}$, combining different scattering geometries with full linear polarization analysis to unambiguously identify magnetic scattering…

We theoretically investigate the origin of the resonant x-ray scattering (RXS) signal near the Ce $L_{III}$ absorption edge in the quadrupolar ordering phase of CeB$_6$, considering the intersite interaction between the $\Gamma_8$ states in…

Strongly Correlated Electrons · Physics 2009-11-07 Tatsuya Nagao , Jun-ichi Igarashi

Under zero magnetic field, a quadrupolar order parameter at q_Q=(1/2,1/2,1/2) in a typical antiferro-quadrupole (AFQ) ordering compound CeB6 has been observed for the first time by means of a resonant X-ray scattering (RXS) te\ chnique. The…

We report a Cu K-edge resonant inelastic x-ray scattering (RIXS) study of orbital excitations in KCuF3 . By performing the polarization analysis of the scattered photons, we disclose that the excitation between the eg orbitals and the…

Resonant X-ray scattering (RXS) is a spectroscopy where both the power of site selective diffraction and the power of local absorption spectroscopy regarding atomic species are combined. By virtue of the dependence on the core level state…

Materials Science · Physics 2007-11-12 Yves Joly , Elena S. Nazarenko , José-Emilio Lorenzo , Sergio Di Matteo , Calogero R. Natoli

The structural, magnetic and electronic properties of transition metal oxides reflect in atomic charge, spin and orbital degrees of freedom. Resonant x-ray scattering (RXS) allows us to perform an accurate investigation of all these…

Strongly Correlated Electrons · Physics 2015-05-14 G. Subías , Joaquín García , Blasco Javier , Javier Herrero-Martin , María Concepción Sanchez

We analyze the recent experiment [W. Neubeck {\em et al.}, Phys. Rev. B \vol(60,1999,R9912)] for the resonant x-ray magnetic scattering (RXMS) around the K edge of Co in the antiferromagnet CoO. We propose a mechanism of the RXMS to make…

Strongly Correlated Electrons · Physics 2009-10-31 Jun-ichi Igarashi , Manabu Takahashi

In a recent published paper [Phys. Rev. B 64, 195133 (2001)], Zimmermann et al. present a systematic x-ray scattering study of charge and orbital ordering phenomena in the Pr1-xCaxMnO3 series with x= 0.25, 0.4 and 0.5. They propose that for…

Strongly Correlated Electrons · Physics 2009-11-10 Joaquin Garcia , Gloria Subias

Complete polarization analysis applied to resonant x-ray scattering at the Cr K-edge in K2CrO4 shows that incident linearly polarized x-rays can be converted into circularly polarized x-rays by diffraction at the Cr pre-edge (E = 5994 eV).…

Strongly Correlated Electrons · Physics 2009-11-11 C. Mazzoli , S. B. Wilkins , S. Di Matteo , B. Detlefs , C. Detlefs , V. Scagnoli , L. Paolasini , P. Ghigna

The capability to probe the dispersion of elementary spin, charge, orbital, and lattice excitations has positioned resonant inelastic x-ray scattering (RIXS) at the forefront of photon science. In this work, we will investigate how RIXS can…

Superconductivity · Physics 2016-05-13 Pasquale Marra

In the cuprate superconductors, superconductivity often co-exists with other types of order, including charge density wave and nematic orders. Over the past decade, resonant x-ray scattering has emerged as a key tool to investigate these…

Strongly Correlated Electrons · Physics 2023-09-21 David G Hawthorn

Resonant elastic X-ray scattering is a powerful technique for measuring multipolar order parameters. In this paper, we theoretically and experimentally study the possibility of using this technique to detect the proposed multipolar order…

Strongly Correlated Electrons · Physics 2017-09-01 Y. L. Wang , G. Fabbris , D. Meyers , N. H. Sung , R. E. Baumbach , E. D. Bauer , P. J. Ryan , J. -W. Kim , X. Liu , M. P. M. Dean , G. Kotliar , X. Dai

The capability to probe the dispersion of elementary spin, charge, orbital, and lattice excitations has positioned resonant inelastic x-ray scattering (RIXS) at the forefront of photon science. Here we develop the scattering theory for RIXS…

Superconductivity · Physics 2015-04-10 Pasquale Marra , Steffen Sykora , Krzysztof Wohlfeld , Jeroen van den Brink

We study the magnetic resonant x-ray scattering (RXS) spectra around the $K$ edge of Cu in KCuF$_3$ on the basis of an {\em ab initio} calculation. We use the full-potential linearlized augmented plane wave method in the LDA$+U$ scheme, and…

Strongly Correlated Electrons · Physics 2009-11-07 M. Takahashi , M. Usuda , J. Igarashi

We present calculations for resonant inelastic x-ray scattering (RIXS) in edge-shared copper oxide systems, such as CuGeO$_{3}$ and Li$_{2}$CuO$_{2}$, appropriate for hard x-ray scattering where the photoexcited electron lies above oxygen…

Strongly Correlated Electrons · Physics 2009-11-13 F. Vernay , B. Moritz , I. Elfimov , J. Geck , D. Hawthorn , T. P. Devereaux , G. A. Sawatzky
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