Results 21 to 30 of about 8,906 (257)

Supramolecular assemblies of pyridyl porphyrin and diazadithia phthalocyanine [PDF]

Journal of the Serbian Chemical Society, 1999
In this paper we report for the first time on amixed complex between the cationic porphyrin 5, 10, 15, 20-tetra-N-methyl-pyrydinium-p-il porphyrin (TMPyP) and a new metal phthalocyanine with four 16-membered diazadithia macrocycles (denoted here
Ion Rodica-Mariana, Yilmaz Ismail, Bekaroglu Ozer   +2 more
doaj   +3 more sources

Multi-Configuration Dirac–Hartree–Fock (MCDHF) Calculations for B-Like Ions

Atoms, 2016
Relativistic configuration interaction results are presented for several B-like ions (Ge XXVIII, Rb XXXIII, Sr XXXIV, Ru XL, Sn XLVI, and Ba LII) using the multi-configuration Dirac–Hartree–Fock (MCDHF) method.
Indu Khatri, Arun Goyal, Avnindra Kumar Singh, Man Mohan   +3 more
doaj   +1 more source

Radiative Rates and Electron Impact Excitation Rates for Transitions in He II

Atoms, 2017
We report calculations of energy levels, radiative rates, collision strengths and effective collision strengths for transitions among the lowest 25 levels of the n ≤ 5 configurations of He II.
Kanti M. Aggarwal, Akinori Igarashi, Francis P. Keenan, Shinobu Nakazaki   +3 more
doaj   +1 more source

Laser-Induced Breakdown Spectroscopy for Determination of Spectral Fundamental Parameters

Applied Sciences, 2020
In this review, we report and critically discuss the application of LIBS for the determination of plasma-emission fundamental parameters, such as transition probabilities, oscillator strengths, Stark broadening and shifts, of the emission lines in the ...
Sabrina Messaoud Aberkane, Ali Safi, Asia Botto, Beatrice Campanella, Stefano Legnaioli, Francesco Poggialini, Simona Raneri, Fatemeh Rezaei, Vincenzo Palleschi   +8 more
doaj   +1 more source

The influence of hyperfine structure on some manganese line profiles in the solar spectrum [PDF]

Serbian Astronomical Journal, 2003
Taking into account effects of hyperfine structure, we calculated the synthetic solar spectrum for wavelength intervals around nine neutral manganese lines.
Vitas Nikola D., Vince Ištvan I.
doaj   +1 more source

Solar Oscillator Strengths as a Diagnostic Tool [PDF]

Symposium - International Astronomical Union, 1990
We briefly review the Kiev program for determining oscillator strengths of Fraunhofer lines from the optical solar spectrum, which has recently resulted in a compilation of solar gf-values for 1958 lines from 40 chemical elements (Gurtovenko and Kostik 1989).
E. A. Gurtovenko, R. I. Kostik, R. J. Rutten   +2 more
openaire   +1 more source

Quantifying Subsurface Weak in‐Plane Magnetization of Mixed Phase BiFeO3 by Scanning Nitrogen Vacancy Magnetometry

Advanced Functional Materials, EarlyView.
We use scanning nitrogen vacancy magnetometry to directly image the weak in‐plane magnetic moments in mixed phase BiFeO3 at the nanoscale and quantify the local magnetic moments to be 18.8±2.0 μB/nm2 in the rhombohedral‐like phase and 1.5±0.6 μB/nm2 in the well‐known non‐magnetic tetragonal‐like phase.
Lei Wang, Zhewen Xu, Yuwen Xu, Björn Josteinsson, Simon Josephy, Dawei Zhang, Yunlong Sun, Heung‐Sik Park, Jihun Kim, Kanghyun Chu, Kyung Song, Danyang Wang, Chan‐Ho Yang, Andrea Morales, Jan Seidel   +14 more
wiley   +1 more source

Transition Probabilities, Oscillator and Line Strengths in Sc XIX

East European Journal of Physics
Scandium XIX ion is a member of the isoelectronic sequence of Li-like ions. Numerical coulomb approximation and quantum defect theory have been used to calculate energies, quantum defects & transition probabilities, oscillator, and line strengths of Sc ...
Zaheer Uddin, Muhammad Kaleem, Saba Javaid, Roohi Zafar   +3 more
doaj   +1 more source

Radiative Transition Parameters in Atomic Lanthanum from Pseudo-Relativistic Hartree–Fock and Fully Relativistic Dirac–Hartree–Fock Calculations

Atoms, 2019
Calculated radiative transition probabilities and oscillator strengths are reported for 392 lines of neutral lanthanum (La I) atom in the spectral range from the near ultraviolet to the mid infrared.
Sébastien Gamrath, Patrick Palmeri, Pascal Quinet   +2 more
doaj   +1 more source

Trapping of Electrons around Nanoscale Metallic Wires Embedded in a Semiconductor Medium

Electronic Materials, 2021
We predict that conduction electrons in a semiconductor film containing a centered square array of metal nanowires normal to its plane are bound in quantum states around the central wires, if a positive bias voltage is applied between the wires at the ...
Chi Cuong Huynh, Roger Evrard, Ngoc Duy Nguyen   +2 more
doaj   +1 more source