Article
Physics, Nuclear
M. A. Cardona, D. Hojman, B. Roussiere, I Deloncle, N. Barre-Boscher, M. Cheikh Mhamed, E. Cottereau, B. Dimitrov, G. Tz Gavrilov, A. Gottardo, C. Lau, S. Roccia, S. Tusseau-Nenez, D. Verney, M. S. Yavahchova
Summary: The study on low-spin states of La-145 revealed a new level scheme and discussed the half-lives and configurations of excited states. The research findings have enhanced our understanding of this nucleus.
Article
Geochemistry & Geophysics
Soqra Rasti, Mohammad Ali Rajabzadeh, Gael Monvoisin, Cecile Quantin
Summary: A nickel-rich regolith is discontinuously distributed between the Sedimentary Zagros Orogenic (SZO) and Metamorphic Sanandaj-Sirjan (MSS) belts in Fars province, southwest Iran. The nickel concentration varies along the laterite profiles, with the highest grade in the oxide horizon. Nickel release from serpentine group minerals in the parent rock is concentrated in the oxide horizon, influenced by meteoric water circulation and intensity of weathering.
JOURNAL OF GEOCHEMICAL EXPLORATION
(2022)
Article
Physics, Nuclear
B. M. Nyako, J. Timar, M. Csatlos, Zs Dombradi, A. Krasznahorkay, I Kuti, D. Sohler, T. G. Tornyi, M. Czerwinski, T. Rzaca-Urban, W. Urban, P. Baczyk, L. Atanasova, D. L. Balabanski, K. Sieja, A. Blanc, M. Jentschel, U. Koster, P. Mutti, T. Soldner, G. de France, G. S. Simpson, C. A. Ur
Summary: Medium-spin excited states of the neutron-rich nucleus Br-87 were observed and studied for the first time, with fission of U-235 induced by a cold neutron beam. The observed level scheme showed deviations from shell model predictions, particularly in the behavior of the pi g(9/2) band at high spins. This deviation is likely due to increased collectivity resulting from polarization of the core by high-j protons in the pi g(9/2) band.
Article
Chemistry, Physical
Sebastian M. Thielen, Manuel Hodecker, Julia Piazolo, Dirk R. Rehn, Andreas Dreuw
Summary: The study introduces the core-valence separation (CVS) approximation applied to unitary coupled-cluster (UCC) theory for calculating core-excited states and simulating x-ray absorption spectroscopy (XAS). Results from CVS-UCC are compared to algebraic-diagrammatic construction methods and experimental data, showing its potential as a new approach for XAS calculations.
JOURNAL OF CHEMICAL PHYSICS
(2021)
Article
Optics
A. C. Sahoo, P. K. Mandal, Jaya Mukherjee, Vas Dev, M. L. Shah
Summary: In this study, a three-color three-step laser resonance ionization spectroscopy technique was used to investigate the autoionization spectra of atomic samarium in the energy range of 50,330 -51,160 cm(-1). Fifty-five odd-parity autoionization levels were observed in this energy range, with fifty of them being newly discovered. The total angular momenta of eighteen odd-parity autoionization levels have been uniquely assigned.
JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER
(2021)
Article
Physics, Nuclear
Xin-Rui Zhang, Gen Zhang, Jing-Jing Li, Shi-Hui Cheng, Zhong Liu, Feng-Shou Zhang
Summary: This study investigates the role of driving potentials in different orientation configurations in the Kr-86 + Er-166 and Hg-204 + Th-232 reactions. It is found that the Coulomb potential predominantly affects the driving potential in the mass number range of 52-200, while the nuclear potential becomes significant for mass numbers outside this range. In the Hg-204 + Th-232 reaction, the tip-to-tip configuration leads to the production of unknown neutron-rich isotopes due to the inverse quasifission process. The optimal incident energy is determined to be 678.1 MeV.
Article
Physics, Nuclear
S. Sidorov, D. Zhulyaeva, T. Tretyakova
Summary: This study investigates excited states in the low-energy spectra of Ni70-76. It employs pairing forces in the form of surface delta interaction to explain the formation of the ground state multiplet with seniority nu = 2 states. The splitting of the multiplet is described using mass relationships of neighboring nuclei. The seniority model is then used to reproduce or predict specific states in odd-even isotopes and even-even isotopes. The results are compared with the structure of similar multiplets in N = 50 isotones.
Article
Chemistry, Physical
A. T. Kozakov, A. G. Kochur, N. Kumar, K. Panda, A. Nikolskii, A. Sidashov
Summary: The study analyzed the method of determining the relative contents of carbon atoms in sp(2) and sp(3) states using C1s X-ray photoelectron and CKVV spectra, as well as the difficulties associated with this approach. A new method for evaluating the fractions of sp(2) and sp(3) phases was proposed, and differences in analyzing the surface characteristics of ultrananocrystalline and microcrystalline diamond films were compared.
APPLIED SURFACE SCIENCE
(2021)
Review
Chemistry, Physical
Zhuangzhuang Cui, Xiao Li, Xiaoyu Bai, Xiaodi Ren, Xing Ou
Summary: This review thoroughly discusses the issues and challenges of Ni-rich layered oxides, analyzes different mechanisms of elemental doping, and compares the characteristics of doping elements in different valence states. It also provides perspectives on key doping principles and future cathode designs. This review offers an exhaustive summary of cathode doping strategies and provides a fundamental understanding of doping modification for Ni-rich materials.
ENERGY STORAGE MATERIALS
(2023)
Article
Chemistry, Physical
Soumyadip Ray, Padmabati Mondal
Summary: This study investigates the substitution effect on the ground and excited electronic states of indole using computational quantum chemistry. The performance of time-dependent density functional theory is evaluated against experimental and ab initio results. The results show that the substituents have a significant impact on the absorption spectrum and excited electronic states of indole, and the vibronic coupling effect is important for the photophysics and photochemistry of indole.
Article
Chemistry, Inorganic & Nuclear
Florian Pachel, Philipp Frech, Markus Stroebele, David Enseling, Carl P. Romao, Thomas Juestel, Marcus Scheele, Hans-Juergen Meyer
Summary: Solvated tungsten iodide cluster compounds, including [(W6I8)(CH3CN)(6)](4+) and [(W6I8)I(CH3CN)(5)](3+), were synthesized in acetonitrile and their crystal structures were determined by X-ray diffraction. The structure of [(W6I8)(CH3CN)(6)](4+) consists of an octahedral [W6I8](4+) core coordinated by six apical CH3CN ligands. The electron localisation function of [(W6I8)(CH3CN)(6)](4+) was calculated and its solid-state photoluminescence and temperature dependence were investigated. Photoluminescence and transient absorption measurements in acetonitrile were also performed, and the results were compared with compounds containing [(M6I8)I-6](2-) and [(M6I8)L-6](2-) (M = Mo or W; L = ligand) clusters.
DALTON TRANSACTIONS
(2023)
Article
Physics, Multidisciplinary
Soenke Beck, Brian Kootte, Irene Dedes, Timo Dickel, A. A. Kwiatkowski, Eleni Marina Lykiardopoulou, Wolfgang R. Plass, Moritz P. Reiter, Corina Andreoiu, Julian Bergmann, Thomas Brunner, Dominique Curien, Jens Dilling, Jerzy Dudek, Eleanor Dunling, Jake Flowerdew, Abdelghafar Gaamouci, Leigh Graham, Gerald Gwinner, Andrew Jacobs, Renee Klawitter, Yang Lan, Erich Leistenschneider, Nikolay Minkov, Victor Monier, Ish Mukul, Stefan F. Paul, Christoph Scheidenberger, Robert Thompson, James L. Tracy, Michael Vansteenkiste, Hua-Lei Wang, Michael E. Wieser, Christian Will, Jie Yang
Summary: High-accuracy mass measurements of neutron-deficient Yb isotopes were conducted at TRIUMF using TITAN's MR-TOF-MS, which was utilized as both an isobar separator and a mass spectrometer for the first time. This study confirmed the stability of the N = 82 shell and provided insights into the excited states of N = 81 isotopes.
PHYSICAL REVIEW LETTERS
(2021)
Review
Physics, Multidisciplinary
B. Gnoffo, S. Pirrone, G. Politi, G. Cardella, E. De Filippo, E. Geraci, C. Maiolino, N. S. Martorana, A. Pagano, E. V. Pagano, M. Papa, F. Risitano, F. Rizzo, P. Russotto, M. Trimarchi
Summary: An investigation plan is presented to study different clustering and molecular states in neutron rich isotopes of Lithium, Beryllium, Boron and Carbon, using experimental facilities at INFN-Laboratori Nazionali del Sud. The high intensities of exotic beams provided by the FRAISE facility and the use of high-performance experimental apparatus, such as the detectors CHIMERA, FARCOS, and NArCOS, will enable high statistics and new information on known states and new states to be obtained.
FRONTIERS IN PHYSICS
(2022)
Article
Chemistry, Physical
K. Balogun, P. Chukwunenye, F. Anwar, A. Ganesan, Q. Adesope, D. Willadsen, S. Nemsak, T. R. Cundari, P. S. Bagus, F. D'Souza, J. A. Kelber
Summary: Interactions of N-2 at oxide surfaces play a significant role in understanding the mechanisms of electrocatalytic nitrogen reduction reaction (NRR). N-2 adsorption on polycrystalline vanadium oxide/vapor interface was investigated using Near-Ambient Pressure X-ray Photoelectron Spectroscopy (NAP-XPS). The results showed favorable adsorption energies for N-2 bonding to V(IV) and V(III) cation sites. The presence of H2O reduced the adsorbed N intensity.
JOURNAL OF CHEMICAL PHYSICS
(2022)
Article
Spectroscopy
Feixiang Ji, Yurong Guo, Mengqi Wang, Zibo Wu, Yanan Shi, Xiaoying Zhao, Haiyuan Wang, Xia Feng, Guangjiu Zhao
Summary: In this study, the molecular structures, energy levels, excited state properties, and electronic absorption spectra of ABTS were theoretically investigated using TDDFT model. The relationship between electronic structures and photochemistry of different oxidation states of ABTS was demonstrated, paving the way for rational synthesis and deepening understanding of the photophysical properties of ABTS materials. The experimental results were in accordance with the calculated electronic structures and photochemical properties of different oxidation states of ABTS.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2021)