Zobrazeno 1 - 10
of 93
pro vyhledávání: '"Ch. Brouder"'
Autor:
Sean P. Collins, Ch. Brouder, Delphine Cabaret, Ch. J. Sahle, Guillaume Radtke, S. Delhommaye, Lorenzo Paulatto, Michele Lazzeri, Simo Huotari
Publikováno v:
Physical Review B
Physical Review B, American Physical Society, 2021, 104 (2), ⟨10.1103/PhysRevB.104.024302⟩
Physical Review B, 2021, 104 (2), ⟨10.1103/PhysRevB.104.024302⟩
Physical Review B, American Physical Society, 2021, 104 (2), ⟨10.1103/PhysRevB.104.024302⟩
Physical Review B, 2021, 104 (2), ⟨10.1103/PhysRevB.104.024302⟩
This study aims at assessing the thermal nuclei motion effects on the multipole transition channels involved in two core-level spectroscopies, x-ray absorption spectroscopy (XAS) and x-ray Raman scattering (XRS). Temperature effects on the $1s\ensure
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cd83790f11bd4460204f9d8e60d9faa8
https://hal.archives-ouvertes.fr/hal-03365381
https://hal.archives-ouvertes.fr/hal-03365381
Autor:
Matteo Calandra, Francesco Mauri, Nadejda Bouldi, Uwe Gerstmann, Ch. Brouder, N. J. Vollmers, Ph. Sainctavit, Amélie Juhin, C. G. Delpy-Laplanche, Lorenzo Paulatto, Yves Joly
Publikováno v:
Physical Review B. 96
An efficient first principles approach to calculate X-ray magnetic circular dichroism (XMCD) and X-ray natural circular dichroism (XNCD) is developed and applied in the near edge region at the K-and L1-edges in solids. Computation of circular dichroi
Publikováno v:
Journal of Physics: Conference Series
The 16th International Conference on X-ray Absorption Fine Structure (XAFS16)
The 16th International Conference on X-ray Absorption Fine Structure (XAFS16), Aug 2015, Karlsruhe, Germany. ⟨10.1088/1742-6596/712/1/012006⟩
The 16th International Conference on X-ray Absorption Fine Structure (XAFS16)
The 16th International Conference on X-ray Absorption Fine Structure (XAFS16), Aug 2015, Karlsruhe, Germany. ⟨10.1088/1742-6596/712/1/012006⟩
International audience; Usually first-principles x-ray absorption near-edge structure (XANES) calculations are performed in the Born-Oppenheimer approximation assuming a static lattice, whereas the nuclear motion undoubtedly impacts XANES spectra not
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::67762bbf4c3aac376ffac279579ef1f4
https://hal.archives-ouvertes.fr/hal-01502193/document
https://hal.archives-ouvertes.fr/hal-01502193/document
Publikováno v:
The European Physical Journal B. 53:169-184
We discuss the physical content of X-ray Detected Magnetic Resonance (XDMR), i.e. a novel spectroscopy which uses XMCD to probe the resonant precession of the local magnetization in a strong microwave pump field. We focus on the simplest case of a st
Autor:
Ivan Marri, Paolo Carra, Andrei Rogalev, C. Goulon-Ginet, Ch. Brouder, Fabrice Wilhelm, José Goulon
Publikováno v:
Journal of experimental and theoretical physics
97 (2003): 402–431. doi:10.1134/1.1609001
info:cnr-pdr/source/autori:Goulon J.; Rogalev A.; Wilhelm F.; Goulon-Ginet C.; Carra P.; Marri I.; Brouder Ch./titolo:X-ray optical activity: Applications of sum rules/doi:10.1134%2F1.1609001/rivista:Journal of experimental and theoretical physics (Print)/anno:2003/pagina_da:402/pagina_a:431/intervallo_pagine:402–431/volume:97
97 (2003): 402–431. doi:10.1134/1.1609001
info:cnr-pdr/source/autori:Goulon J.; Rogalev A.; Wilhelm F.; Goulon-Ginet C.; Carra P.; Marri I.; Brouder Ch./titolo:X-ray optical activity: Applications of sum rules/doi:10.1134%2F1.1609001/rivista:Journal of experimental and theoretical physics (Print)/anno:2003/pagina_da:402/pagina_a:431/intervallo_pagine:402–431/volume:97
Edge-selective sum rules are proposed for a variety of X-ray dichroisms related to natural or nonreciprocal optical activity. Four spherical operators are identified that mix orbitals of different parities in what is assumed to be the ground state. T
Publikováno v:
Journal of Magnetism and Magnetic Materials
Journal of Magnetism and Magnetic Materials, 2014, 366, pp.1-23. ⟨10.1016/j.jmmm.2014.03.074⟩
Journal of Magnetism and Magnetic Materials, Elsevier, 2014, 366, pp.1-23. ⟨10.1016/j.jmmm.2014.03.074⟩
Journal of Magnetism and Magnetic Materials, 2014, 366, pp.1-23. ⟨10.1016/j.jmmm.2014.03.074⟩
Journal of Magnetism and Magnetic Materials, Elsevier, 2014, 366, pp.1-23. ⟨10.1016/j.jmmm.2014.03.074⟩
We discuss how X-ray magnetic circular dichroism (XMCD) and X-ray magnetic linear dichroism (XMLD) may complement each other to probe the nonlinear nature of the resonant precession of either spin or orbital magnetization components in aligned ferro-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::70a39ead89ffa257a152cef67c42594e
https://hal.science/hal-01117941
https://hal.science/hal-01117941
Publikováno v:
Applied Physics A: Materials Science & Processing. 73:703-706
X-ray Magnetic Circular Dichroism (XMCD) at LII,III edges of rare earths in rare earth–3d transition metal compounds is still a subject of study. We present experimental evidence of electric quadrupolar transitions at LIII and LII edges of Er in th
Autor:
Andrei Rogalev, José Goulon, C. Malgrange, Gisele Benayoun, P. A. Metcalf, C. Goulon-Ginet, Luigi Paolasini, Ch. Brouder
Publikováno v:
Physical Review Letters. 85:4385-4388
We report the first observation of a nonreciprocal x-ray linear dichroism caused by the time-reversal odd, real part zeta of the complex gyrotropy tensor zeta(*) which is dominated by electric dipole-electric quadrupole E1E2 interference terms. A non
Publikováno v:
EPL-Europhysics Letters
EPL-Europhysics Letters, European Physical Society/EDP Sciences/Società Italiana di Fisica/IOP Publishing, 2000, 51, pp.454-460. ⟨10.1209/epl/i2000-00515-8⟩
EPL-Europhysics Letters, 2000, 51, pp.454-460. ⟨10.1209/epl/i2000-00515-8⟩
EPL-Europhysics Letters, European Physical Society/EDP Sciences/Società Italiana di Fisica/IOP Publishing, 2000, 51, pp.454-460. ⟨10.1209/epl/i2000-00515-8⟩
EPL-Europhysics Letters, 2000, 51, pp.454-460. ⟨10.1209/epl/i2000-00515-8⟩
For the first time, commonly unaccessible local electronic structure parameters of Fe2+ and Fe3+ in minerals are derived from the calculation of the pre-edge features of X-ray absorption spectra at the Fe K edge. The Ligand Field Multiplet approach i
Autor:
José Goulon, Andrei Rogalev, Calogero R. Natoli, Ch. Brouder, Ch. Goulon-Ginet, Ph. Sainctavit
Publikováno v:
The European Physical Journal B. 4:1-11
A method is presented to calculate the natural circular dichroism recently discovered in the X-ray range (XNCD). The basic formula represents XNCD as an odd second-rank tensor and leads to a sum rule that relates XNCD to the mixing of odd and even or