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Resonant soft X-ray scattering (RSXS) is a powerful technique for probing both spatial and electronic structures within solid-state systems. We present a newly developed RSXS capability at beamline 13-3 of the Stanford Synchrotron Radiation…

Synchrotron X-ray diffraction experiments and molecular dynamics simulations have been performed on simple aliphatic aldehydes, from propanal to nonanal. The performance of the OPLS all-atom interaction potential model for aldehydes has…

Chemical Physics · Physics 2018-11-27 Ildikó Pethes , László Temleitner , Matija Tomšič , Andrej Jamnik , László Pusztai

Pressure-induced phase transitions of multiferroic BiFeO3 have been investigated using synchrotron radiation X-ray diffraction with diamond anvil cell technique at room temperature. Present experimental data clearly show that rhombohedral…

Materials Science · Physics 2013-08-30 Zhang XiaoLi , Wu Ye , Zhang Qian , Dong JunCai , Wu Xiang , Liu Jing , Wu ZiYu , Chen DongLiang

A series of MnxZn1-xO (x=0.03, 0.05) nanostructures have been grown via the solution based chemical spray pyrolysis technique. Electron beam induced modifications on structural, linear and nonlinear optical and surface morphological…

We study pressure-induced structural evolution of vanadium diselenide (VSe2), a 1T polymorphic member of the transition metal di-chalcogenide (TMD) family using synchrotron-based powder X-ray diffraction (PXRD) and first-principles density…

The isotope effects in x-ray absorption spectra of liquid water are studied by a many-body approach within electron-hole excitation theory. The molecular structures of both light and heavy water are modeled by path-integral molecular…

Disordered Systems and Neural Networks · Physics 2020-09-29 Chunyi Zhang , Linfeng Zhang , Jianhang Xu , Fujie Tang , Biswajit Santra , Xifan Wu

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

X-ray photoemission spectroscopy has been used to investigate the depth dependent crystal structures and chemical compositions of sequentially chemical-etched YBa2Cu3O7-d (YBCO) ultrathin film superconductors. In the near-interface region…

Materials Science · Physics 2007-05-23 H. W. Seo , Q. Y. Chen , Paul van der Heide , Wei-Kan Chu

Time-resolved X-ray absorption spectroscopy has been utilized to monitor the bimolecular electron transfer in a photocatalytic water splitting system for the first time. This has been possible by uniting the local probe and element specific…

The pyrochlore iridates, A$_2$Ir$_2$O$_7$, show a wide variety of structural, electronic, and magnetic properties controlled by the interplay of different exchange interactions, which can be tuned by external pressure. In this work, we…

Materials Science · Physics 2024-05-14 M Rosalin , K. A. Irshad , Boby Joseph , Prachi Telang , Surjeet Singh , D. V. S. Muthu , A. K. Sood , .

Passivation effect of heterogeneous Au nanoparticles (AuNPs) on the nonuniform structure changes of amorphous SiOx nanowire (a-SiOx NW) as athermally induced by focused electron beam (e-beam) irradiation is investigated in an in-situ…

Applied Physics · Physics 2018-09-24 Jiangbin Su , Xianfang Zhu , Liang Cheng

We study the directional dichroic absorption spectra in the x-ray region in a polar ferrimagnet GaFeO_3. The directional dichroism on the absorption spectra at the Fe pre-K-edge arises from the E1-E2 interference process through the…

Strongly Correlated Electrons · Physics 2015-05-14 Jun-ichi Igarashi , Tatsuya Nagao

Long-exposure stellar images recorded with large ground-based telescopes are blurred due to the turbulent nature of the atmosphere. The VLT employs active and adaptive optics (AO) systems to compensate for the deleterious effects of the…

Instrumentation and Methods for Astrophysics · Physics 2014-04-29 Sridharan Rengaswamy , Julien Girard , Willem-Jan de Wit , Henri Boffin

The temperature dependence of the O K-edge pre-edge structure in the x-ray absorption spectra of the perovskites La(1-x)A(x)MnO(3), (A = Ca, Sr; x = 0.3, 0.4) reveals a correlation between the disappearance of the splitting in the pre-edge…

Strongly Correlated Electrons · Physics 2009-11-11 N. Mannella , A. Rosenhahn , M. Watanabe , B. Sell , A. Nambu , S. Ritchey , E. Arenholz , A. Young , Y. Tomioka , C. S. Fadley

Polarization-dependent scattering anisotropy of cylindrical nanowires has numerous potential applications in, for example, nanoantennas, photothermal therapy, thermophotovoltaics, catalysis, sensing, optical filters and switches. In all…

Mesoscale and Nanoscale Physics · Physics 2022-03-29 Vaibhav Thakore , Tapio Ala-Nissila , Mikko Karttunen

A growing number of shock compression experiments, especially those involving laser compression, are taking advantage of in situ x-ray diffraction as a tool to interrogate structure and microstructure evolution. Although these experiments…

Transition metal oxides (TMOs) exhibit a broad spectrum of electronic, magnetic, and optical properties, making them intriguing materials for various technological applications. Soft x-ray absorption spectroscopy (XAS) is widely used to…

Ab initio based accurate simulation of phonon-assisted optical spectra of semiconductors at finite temperatures remains a formidable challenge, as it requires large supercells for phonon sampling and computationally expensive high-accuracy…

Materials Science · Physics 2025-05-07 Qiangqiang Gu , Shishir Kumar Pandey , Zhanghao Zhouyin

Photoabsorption by and fluorescence of the K{\alpha} transitions in highly charged iron ions are essential mechanisms for X-ray radiation transfer in astrophysical environments. We study photoabsorption due to the main K{\alpha} transitions…