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Related papers: Fe and N self-diffusion in amorphous FeN: A SIMS a…

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We study the structural properties and the collective microscopic dynamics of atoms in the amorphous metallic alloy $Ni_{33}Zr_{67}$ at the temperature $T=300K$ by molecular dynamics simulations. The calculated equilibrium structural and…

Disordered Systems and Neural Networks · Physics 2015-06-11 Ramil M. Khusnutdinoff , Anatolii V. Mokshin , Ilgiz I. Khadeev

We use variable-temperature (150--300\,K) single-crystal X-ray diffraction to re-examine the interplay between structure and dynamics in the ambient phase of the isotropic negative thermal expansion (NTE) material Cd(CN)$_2$. We find strong…

Materials Science · Physics 2015-06-05 Vanessa E. Fairbank , Amber L. Thompson , Richard I. Cooper , Andrew L. Goodwin

We report on the photodissociation dynamics study of n-butyl nitrite (n-C_4H_9ONO) and isoamyl nitrite ((CH_3)_2C_3H_5ONO) by means of time-resolved Fourier transform infrared (TR-FTIR) emission spectroscopy. The obtained TR-FTIR emission…

Chemical Physics · Physics 2009-05-08 Min Ji , Junfeng Zhen , Qun Zhang , Yang Chen

Amorphous silicon films prepared by electron beam evaporation have systematically and substantially greater atomic density for higher thickness, higher growth temperature, and slower deposition rate, reaching the density of crystalline Si…

Materials Science · Physics 2022-04-27 H. C. Jacks , M. Molina-Ruiz , M. H. Weber , J. J. Maldonis , P. M. Voyles , T. H. Metcalf , X. Liu , F. Hellman

We have performed quasielastic and inelastic neutron scattering (QENS and INS) measurements from 300 K to 1173 K to investigate the Na-diffusion and underlying host dynamics in Na2Ti3O7. The QENS data show that the Na atoms undergo…

This study focuses on amorphous boron nitride ($\rm \alpha$-BN) as a novel diffusion barrier for advanced semiconductor technology, particularly addressing the critical challenge of copper diffusion in back-end-of-line (BEOL) interconnects.…

We report high-pressure $^{77}$Se NMR studies on FeSe single crystals that reveal a prominent inhomogeneous NMR linewidth broadening upon cooling, with the magnetic field applied along the tetragonal [110] direction. The data indicate the…

Superconductivity · Physics 2017-09-29 P. S. Wang , P. Zhou , S. S. Sun , Y. Cui , T. R. Li , Hechang Lei , Ziqiang Wang , Weiqiang Yu

We report inelastic neutron scattering (INS) investigations on the bilayer Fe-based superconductor CsCa2Fe4As4F4 above and below its superconducting transition temperature Tc = 28.9 K to investigate the presence of a neutron spin resonance.…

Superconductivity · Physics 2020-08-25 D. T. Adroja , S. J. Blundell , F. Lang , H. Luo , Z. -C. Wang , G. -H. Cao

We have combined neutron reflectometry with rheology in order to investigate the solid boundary of liquids and polymers under shear deformation. Our approach allows one to apply a controlled stress to a material while resolving the…

Soft Condensed Matter · Physics 2020-06-09 Max Wolff , Peter Kuhns , Georg Liesche , John F. Ankner , Jim F. Browning , Philipp Gutfreund

Fabrication of a multistrip magnetic/nonmagnetic structure in a thin sandwiched Ni layer [Si(5 nm)/Ni(10 nm)/Si] by a focused ion beam (FIB) irradiation has been attempted. A control experiment was initially performed by irradiation with a…

Materials Science · Physics 2015-07-15 B. N. Dev , N. Banu , J. Fassbender , J. Grenzer , N. Schell , L. Bischoff , R. Groetzschel , J. McCord

This paper deals with the comparison between thermal and Fission Enhanced Diffusion (FED) of uranium into zirconia, representative of the inner face of cladding tubes. The experiments under irradiation are performed at the Institut Laue…

Chemical Physics · Physics 2016-08-16 N. Bérerd , A. Chevarier , N. Moncoffre , P. Sainsot , H. Faust , H. Catalette

Temperature-dependent synchrotron powder diffraction on Cs0.83(Fe0.86Se)2 revealed first order I4/m to I4/mmm structural transformation around 216{\deg}C associated with the disorder of the Fe vacancies. Irreversibility observed during the…

Materials Science · Physics 2011-11-01 V. Svitlyk , D. Chernyshov , E. Pomjakushina , A. Krzton-Maziopa , K. Conder , V. Pomjakushin , V. Dmitriev

We report a neutron and Raman scattering study of a single-crystal of La(2)CuO(4.05) prepared by high temperature electrochemical oxidation. Elastic neutron scattering measurements show the presence of two phases, corresponding to the two…

The present study reports on an innovative method to prepare discrete diamond nanoparticles or nanodiamonds (NDs) with high structural and optical quality through top-down approach by controlled oxidation of pre-synthesized nanocrystalline…

Materials Science · Physics 2019-01-10 K. Ganesan , P. K. Ajikumar , S. Ilango , G. Mangamma , S. Dhara

Structural properties, impedance, dielectric and electric modulus spectra have been used to investigate the sintering temperature (Ts) effect on the single phase cubic spinel Ni0.6Zn0.4Fe2O4 (NZFO) ceramics synthesized by standard ceramic…

Materials Science · Physics 2016-10-19 M. A. Ali , M. N. I. Khan , F. -U. -Z. Chowdhury , S. Akhter , M. M. Uddin

To understand spin interactions in materials of the Cu$_2$Sb structure type, inelastic neutron scattering of Fe$_2$As single crystals was examined at different temperatures and incident neutron energies. The experimental phonon spectra…

This work demonstrates high-throughput screening of flexible magnetic materials for efficient transverse thermoelectric conversion based on the anomalous Nernst effect (ANE). The approach integrates automated annealing and contactless…

We apply pulsed-field-gradient NMR (PFG NMR) technique to measure the translational diffusion for both uncharged and charged polysaccharide (Ficoll70) in water. Analysis of the data indicate that NMR signal attenuation above a certain…

Soft Condensed Matter · Physics 2017-09-13 Swomitra Palit , Anand Yethiraj

Nitrogen (N) fractionation is used as a tool to search for a link between the chemical history of the Solar System and star-forming regions. A large variation of $^{14}$N/$^{15}$N is observed towards different astrophysical sources, and…

Solar and Stellar Astrophysics · Physics 2019-03-27 L. Colzi , F. Fontani , P. Caselli , S. Leurini , L. Bizzocchi , G. Quaia

We introduce a technique for extracting microstructural geometry from NMR lineshape analysis in porous materials at angstrom-scale resolution with the use of weak magnetic field gradients. Diverging from the generally held view of FID…

Materials Science · Physics 2024-10-15 Mohamad Niknam , Louis-S. Bouchard