Mass-independent Dunham analysis of the known electronic states of platinum sulfide, PtS, and analysis of the electronic field-shift effect

2019 ◽  
Vol 151 (9) ◽  
pp. 094303 ◽  
Author(s):  
Jack C. Harms ◽  
Leah C. O’Brien ◽  
James J. O’Brien
Keyword(s):  
Electronic States ◽  
Field Shift ◽  
Shift Effect ◽  
Electronic Field

scholarly journals Nuclear field shift effect of lead in ligand exchange reaction using a crown ether

2011 ◽  
Vol 1 (1) ◽  
pp. 387-392 ◽  
Author(s):  
T. Fujii ◽  
F. Moynier ◽  
A. Agranier ◽  
E. Ponzevera ◽  
M. Abe
Keyword(s):  
Crown Ether ◽  
Ab Initio ◽  
Exchange Reaction ◽  
Ligand Exchange ◽  
Isotope Fractionation ◽  
Ligand Exchange Reaction ◽  
Nuclear Field ◽  
Field Shift ◽  
Shift Effect ◽  
Mass Dependent

AbstractLead isotopes were fractionated by the liquid-liquid extraction technique between an aqueous phase and a crown ether. After purification by ion-exchange chemistry, the 207Pb/206Pb and 208Pb/206Pb isotopic ratios were measured by multiple-collector inductively coupled plasma mass spectrometry (MC-ICP-MS). Isotope fractionations > 0.05‰ have been found. The conventional equilibrium mass-dependent isotope effect estimated by an ab initio calculation was smaller than the Pb isotope fractionation experimentally obtained. Conventional mass-dependent isotope fractionation is not a valuable explanation for our results. The nuclear field shift effect, which results from the isotopic change in the nuclear size and shape, was also estimated by an ab initio method combined with a finite nucleus model. The nuclear field shift effect calculated was in agreement with our experimental results. Therefore, this study reports the first nuclear field shift effect of Pb in an equilibrium ligand exchange reaction.

QUANTUM ENTANGLEMENT OF DOUBLE ELECTRONS IN TWO COUPLED QUANTUM DOTS

2007 ◽  
Vol 21 (17) ◽  
pp. 1065-1075 ◽  
Author(s):  
HAIYU LI
Keyword(s):  
Quantum Dots ◽  
Quantum Entanglement ◽  
Electric Pulse ◽  
Electronic States ◽  
Time Dependent ◽  
Spin Orbit Coupling ◽  
Fermion System ◽  
Wave Approximation ◽  
Coherent Manipulation ◽  
Electronic Field

We study the system of vertically coupled two quantum dots in confined single electron. Coulomb interaction between two electrons and Rashba type spin-orbit coupling are taken into account. It is a two-Fermion system, hence the antisymmetric requirement of electronic states must be considered. Four lower antisymmetric eigenfunctions are found out. Based on the rotation wave approximation, the coherent manipulation of quantum state in an external electric pulse with some resonance harmonic frequencies are investigated. The instantaneous degree of quantum entanglement of the state in time-dependent external electronic field is calculated.

Nuclear Field Shift Effect in Isotope Fractionation of Mercury during Abiotic Reduction in the Absence of Light

2010 ◽  
Vol 114 (12) ◽  
pp. 4238-4245 ◽  
Author(s):  
Wang Zheng ◽  
Holger Hintelmann
Keyword(s):  
Isotope Fractionation ◽  
Nuclear Field ◽  
Field Shift ◽  
Abiotic Reduction ◽  
Shift Effect

scholarly journals The nuclear field shift effect in chemical exchange reactions

2009 ◽  
Vol 267 (3-4) ◽  
pp. 139-156 ◽  
Author(s):  
Toshiyuki Fujii ◽  
Frédéric Moynier ◽  
Francis Albarède
Keyword(s):  
Chemical Exchange ◽  
Exchange Reactions ◽  
Nuclear Field ◽  
Field Shift ◽  
Shift Effect

Pure rotational spectra of PbSe and PbTe: potential function, Born–Oppenheimer breakdown, field shift effect and magnetic shielding

2008 ◽  
Vol 10 (15) ◽  
pp. 2078 ◽  
Author(s):  
Barbara M. Giuliano ◽  
Luca Bizzocchi ◽  
Stephen Cooke ◽  
Deike Banser ◽  
Mareike Hess ◽  
...  
Keyword(s):  
Potential Function ◽  
Breakdown Field ◽  
Magnetic Shielding ◽  
Rotational Spectra ◽  
Field Shift ◽  
Shift Effect

scholarly journals Nuclear field shift effect in isotope fractionation of thallium

2012 ◽  
Vol 296 (1) ◽  
pp. 261-265 ◽  
Author(s):  
Toshiyuki Fujii ◽  
Frédéric Moynier ◽  
Arnaud Agranier ◽  
Emmanuel Ponzevera ◽  
Minori Abe ◽  
...  
Keyword(s):  
Isotope Fractionation ◽  
Nuclear Field ◽  
Field Shift ◽  
Shift Effect

scholarly journals Nuclear field shift effect in the isotope exchange reaction of cadmium using a crown ether

2009 ◽  
Vol 267 (3-4) ◽  
pp. 157-163 ◽  
Author(s):  
Toshiyuki Fujii ◽  
Frédéric Moynier ◽  
Philippe Telouk ◽  
Francis Albarède
Keyword(s):  
Crown Ether ◽  
Exchange Reaction ◽  
Isotope Exchange ◽  
Isotope Exchange Reaction ◽  
Nuclear Field ◽  
Field Shift ◽  
Shift Effect

Nuclear Field Shift Effect in the Isotope Exchange Reaction of Chromium(III) Using a Crown Ether

2002 ◽  
Vol 106 (30) ◽  
pp. 6911-6914 ◽  
Author(s):  
Toshiyuki Fujii ◽  
Daisuke Suzuki ◽  
Katsubumi Gunji ◽  
Kazuo Watanabe ◽  
Hirotake Moriyama ◽  
...  
Keyword(s):  
Crown Ether ◽  
Exchange Reaction ◽  
Isotope Exchange ◽  
Isotope Exchange Reaction ◽  
Nuclear Field ◽  
Field Shift ◽  
Shift Effect

The Effect of Temperature on Uranium Isotope Effects Studied by Cation Exchange Displacement Chromatography

2002 ◽  
Vol 57 (5) ◽  
pp. 247-254 ◽  
Author(s):  
Ibrahim M. Ismail ◽  
Masao Nomura ◽  
Yasuhiko Fujii ◽  
Masao Aida
Keyword(s):  
Isotope Effects ◽  
Uranium Isotope ◽  
Effect Of Temperature ◽  
Separation Coefficient ◽  
Displacement Chromatography ◽  
Experimental Conditions ◽  
Isotope Exchange Reaction ◽  
Stage Separation ◽  
Field Shift ◽  
Shift Effect

The uranium isotope effect in the exchange system uranyl(VI)-malate ligand at 288-343 K has been studied by ion exchange displacement chromatography. At all temperatures 235U is enriched at the front of the uranium band. The single stage separation coefficient, (Ɛ = α - 1), increased from (0.9 ± 0.1) × 10-4 at 288 K to (2.9 ± 0.3) × 10-4 at 343 K. The equilibrium constant of the isotope exchange reaction equaled the separation factor at the current experimental conditions. The increase of the separation coefficient with temperature, which is in contrast to the uranium(IV)-ligand exchange systems, can be explained by the introduction of the field shift effect.

The electronic field shift factor of the 4s2S1/2?4p2PJ transitions in CaII

1993 ◽  
Vol 78 (1-4) ◽  
pp. 247-250 ◽  
Author(s):  
R. E. Silverans ◽  
L. Vermeeren ◽  
A. Klein ◽  
R. Neugart ◽  
C. Schulz ◽  
...  
Keyword(s):  
Shift Factor ◽  
Field Shift ◽  
Electronic Field
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