Results 41 to 50 of about 32,171 (212)

Methods of targets’ characterization [PDF]

EPJ Web of Conferences, 2020
The paper reviews the characterization’s techniques for solid targets used in nuclear physics with special emphasis on actinide targets. The determination of the thickness, isotopic and chemical composition are described for actinide targets during their
Stodel Christelle
doaj   +1 more source

Uranium Doped Gallium Nitride Epitaxial Thin Films

Advanced Electronic Materials, EarlyView.
Uranium was controllably added to gallium nitride using molecular beam epitaxy. The uranium atoms segregated into vertically oriented regions with higher doping levels. Concentrations up to a few percent were achieved without showing significant degradation in the crystalline quality or optical characteristics. Low electrical resistivity was maintained
J. Pierce Fix, Sabin Regmi, Aaron G. Penders, Sohail Shah, Kevin D. Vallejo, Volodymyr B. Buturlim, Belief Rifore, Krzysztof Gofryk, Mukesh Bachhav, Nicholas J. Borys, Brelon J. May   +10 more
wiley   +1 more source

Leveraging design of experiments to build chemometric models for the quantification of uranium (VI) and HNO3 by Raman spectroscopy

Frontiers in Nuclear Engineering
Partial least squares regression (PLSR) and support vector regression (SVR) models were optimized for the quantification of U(VI) (10–320 g L−1) and HNO3 (0.6–6 M) by Raman spectroscopy with optimized calibration sets chosen by optimal design of ...
Luke R. Sadergaski, Jeffrey D. Einkauf, Laetitia H. Delmau, Jonathan D. Burns   +3 more
doaj   +1 more source

Induced Ferromagnetism in Epitaxial Uranium Dioxide Thin Films

Advanced Science, 2022
Actinide materials have various applications that range from nuclear energy to quantum computing. Most current efforts have focused on bulk actinide materials.
Yogesh Sharma, Binod Paudel, Amanda Huon, Matthew M. Schneider, Pinku Roy, Zachary Corey, Rico Schönemann, Andrew C. Jones, Marcelo Jaime, Dmitry A. Yarotski, Timothy Charlton, Michael R. Fitzsimmons, Quanxi Jia, Michael T. Pettes, Ping Yang, Aiping Chen   +15 more
doaj   +1 more source

Potential energy surfaces of actinide and transfermium nuclei from multi-dimensional constraint covariant density functional theories

, 2012
Multi-dimensional constrained covariant density functional theories were developed recently. In these theories, all shape degrees of freedom \beta_{\lambda\mu} deformations with even \mu are allowed, e.g., \beta_{20}, \beta_{22}, \beta_{30}, \beta_{32}, \
Lu, Bing-Nan, Zhao, En-Guang, Zhao, Jie, Zhou, Shan-Gui   +3 more
core   +2 more sources

Actinide Chalcogenide Compounds

, 2010
This chapter describes the preparation, structures, and physical properties of the known binary, ternary, and quaternary actinide chalcogenide compounds. In discussing structures we rely almost exclusively on X-ray or neutron diffraction results from single crystals rather than from powders.
Manos, Emmanouil, Kanatzidis, Mercouri G., Ibers, J. A.   +2 more
openaire   +2 more sources

A Comprehensive Assessment and Benchmark Study of Large Atomistic Foundation Models for Phonons

Advanced Intelligent Discovery, EarlyView.
We benchmark six large atomistic foundation models on 2429 crystalline materials for phonon transport properties. The rapid development of universal machine learning potentials (uMLPs) has enabled efficient, accurate predictions of diverse material properties across broad chemical spaces.
Md Zaibul Anam, Ogheneyoma Aghoghovbia, Mohammed Al‐Fahdi, Lingyu Kong, Victor Fung, Ming Hu   +5 more
wiley   +1 more source

Molecular Pnictogen Activation by Rare Earth and Actinide Complexes

Inorganics, 2015
This review covers the activation of molecular pnictogens (group 15 elements) by homogeneous rare earth and actinide complexes. All examples of molecular pnictogen activation (dinitrogen, white phosphorus, yellow arsenic) by both rare earths and ...
Zoë R. Turner
doaj   +1 more source

Covalent bond shortening and distortion induced by pressurization of thorium, uranium, and neptunium tetrakis aryloxides

Nature Communications, 2022
The properties of actinide complexes depend on the ionic versus covalent nature of the bonds. Here, the authors report that pressure can distort actinide-oxygen bonding; differences seen for Th, U and Np result from the decreasing size of the atoms.
Jacob J. Shephard, Victoria E. J. Berryman, Tatsumi Ochiai, Olaf Walter, Amy N. Price, Mark R. Warren, Polly L. Arnold, Nikolas Kaltsoyannis, Simon Parsons   +8 more
doaj   +1 more source

Microscopic theory of the insulating electronic ground states of actinide dioxides AnO2 (An=U, Np, Pu, Am, and Cm)

, 2013
The electronic ground states of the actinide dioxides AnO2 (with An=U, Np, Pu, Am, and Cm) are investigated employing first-principles calculations within the framework of the local density approximation +U (LDA+U) approach, implemented in a full ...
Magnani, Nicola, Oppeneer, Peter M., Suzuki, Michi-To   +2 more
core   +1 more source