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Related papers: Ce(III) Ions in Hydroxyapatite: Nanoscale Environm…

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The symmetry-adapted-cluster configuration interaction (SAC-CI) method is used for ab initio calculation of electronic structure of HCl+ and HBr+ molecular ions. Potential energy curves (PEC) are obtained for a series of low-lying…

Chemical Physics · Physics 2012-02-29 Valerij S. Gurin , Mikhael V. Korolkov , Vitaly E. Matulis

In recent years, there has been a renewed interest in complex coacervation, driven by concerted efforts to offer novel experimental and theoretical insights into electrostatic charge-induced association. While previous studies have…

Soft Condensed Matter · Physics 2024-10-30 Letícia Vitorazi , Jean-François Berret

The spin relaxation dynamics of Ce$^{3+}$ ions in heavily cerium-doped YAG crystals is studied using pulse-electron paramagnetic resonance and time-resolved pump-probe Faraday rotation. Both techniques address the 4$f$ ground state, while…

Materials Science · Physics 2017-09-08 D. V. Azamat , V. V. Belykh , D. R. Yakovlev , F. Fobbe , D. H. Feng , E. Evers , L. Jastrabik , A. Dejneka , M. Bayer

Rare earth cerium oxide (ceria) nanoparticles are stabilized using end-functional phosphonated-PEG oligomers. The complexation process and structure of the resulting hybrid core-shell singlet nanocolloids are described, characterized and…

Soft Condensed Matter · Physics 2008-04-23 L. Qi , A. Sehgal , J. -C. Castaing , J. -P. Chapel , J. Fresnais , J. -F. Berret , F. Cousin

Helium nanodroplets, commonly regarded as the "nearly ideal spectroscopic matrix", are being actively studied for more than two decades now. While they mostly serve as cold, weakly perturbing and transparent medium for high-resolution…

Atomic and Molecular Clusters · Physics 2015-03-03 M. Mudrich , F. Stienkemeier

NMR is the technique of election to probe the local properties of materials. Herein we present the results of density functional theory (DFT) \textit{ab initio} calculations of the NMR parameters for fluorapatite (FAp), a calcium…

Materials Science · Physics 2012-07-27 Barbara Pavan , Davide Ceresoli , Mary M. J. Tecklenburg , Marco Fornari

Recent investigations have shown that highly oxygen defective cerium oxides generate non-classical electrostriction that is superior to lead-based ferroelectrics. In this work, we report the effect of field-assisted spark plasma sintering…

A novel biomaterial (HA,SBA15) has been developed based on the growth of calcium phosphate hydroxyapatite (HA) nanoparticles within an organized silica structure (SBA15)

Materials Science · Physics 2024-01-30 A. Diaz , T. Lopez , J. Manjarrez , E. Basaldella , J. M. Martinez-Blanes , J. A. Odriozola

The crystalline electric field (CEF) is investigated in Pr$_3$Pt$_{23}$Si$_{11}$ and Nd$_3$Pt$_{23}$Si$_{11}$ by neutron spectroscopy (NS). At low temperature, the number of observed CEF excitations is consistent with the orthorhombic…

Strongly Correlated Electrons · Physics 2016-12-13 R. M. Galéra , C. Opagiste , M. Amara , J. C. Toussaint , M. B. Lepetit , S. Rols

Hydroxyapatite synthesized by a wet chemical route was subjected to heavy Krypton ion irradiation of 4MeV at various fluences. Glancing incidence Xray diffraction results confirmed the phase purity of irradiated HA with a moderate…

Applied Physics · Physics 2020-02-03 Hui Zhu , Dagang Guo , Hang Zang , Dorian A. H. Hanaor , Sen Yu , Franziska Schmidt , Kewei Xu

Helium nanodroplets are widely used as a cold, weakly interacting matrix for spectroscopy of embedded species. In this work we excite or ionize doped He droplets using synchrotron radiation and study the effect onto the dopant atoms…

In the pursuit of alternative and less invasive medical treatments, magnetic nanoparticles (NPs) have gained significant relevance. Iron carbides NPs stand out for their higher saturation magnetizations compared to iron oxides, while…

Photoluminescence, thermally stimulated luminescence (TSL) and EPR characteristics of the Ce3+ doped single crystals of multicomponent Y1Lu2GaxAl5-xO12 and Lu3GaxAl5-xO12 garnets with different Ga contents (x = 0, 1, 2, 3, 4, 5) excited in…

This work reports the results of EPR and NMR study of the Ce3+ incorporation in LaAlO3 single crystals grown by the micro-pulling-down method in the range of the Ce concentrations from x=0.1 at.% up to 100 at.%. From EPR measurements, Ce3+…

Materials Science · Physics 2022-06-22 V. Laguta , M. Buryi , J. Pejchal , K. Uličná , V. Římal , V. Chlan , H. Štěpánková , Yu. Zagorodniy , M. Nikl

We investigate the local crystal-field environment of cerium in the clathrate compound CeBa$_7$Au$_6$Si$_{40}$ (Ce-BAS) using resonant inelastic x-ray scattering (RIXS) and magnetic susceptibility measurements. Ce-BAS is a rare example of a…

Co-doped with calcium, europium and erbium ions lanthanum vanadate crystalline nanoparticles are synthesized and investigated with a goal to clarify the mechanisms of calcium and erbium impurities effects on europium ions luminescence and…

The experimental realization of high-temperature superconductivity in compressed hydrides H$_3$S and LaH$_{10}$ at high pressures over 150 GPa has aroused great interest in reducing the stabilization pressure of superconducting hydrides.…

Superconductivity · Physics 2021-07-21 Chongze Wang , Shuyuan Liu , Hyunsoo Jeon , Seho Yi , Yunkyu Bang , Jun-Hyung Cho

We present an experimental study of the dynamics following the photo-excitation and subsequent photo-ionization of single Cs atoms on the surface of helium nanodroplets. The dynamics of excited-Cs-atom desorption and re-adsorption as well…

Atomic and Molecular Clusters · Physics 2021-10-18 Nicolas Rendler , Audrey Scognamiglio , Katrin Dulitz , Frank Stienkemeier , Manuel Barranco , Marti Pí , Nadine Halberstadt

The role of slight changes of the chemical composition on antiferromagnetic ordering of Cr in rare-earth orthochoromites was investigated on a series of ceramic solid-solutions Ce$_{1-x}$Eu${_x}$O$_3$ where x varied from 0 to 1. Gradual…

Strongly Correlated Electrons · Physics 2018-02-14 M. Taheri , F. S. Razavi , Z. Yamani , R. Flacau , C. Ritter , S. Bette , R. K. Kremer

Helium (He) nanodroplets irradiated by intense near-infrared laser pulses form a nanoplasma by avalanche-like electron impact ionizations even at lower laser intensities where He is not directly field ionized, provided that the droplets…

Atomic and Molecular Clusters · Physics 2017-12-06 Andreas Heidenreich , Dominik Schomas , Marcel Mudrich