The interaction between equilibrium defects in the alkali halides: The « First excited state » binding energies of the impurity complex and of the vacancy pair

1958 ◽  
Vol 8 (4) ◽  
pp. 584-589 ◽  
Author(s):  
M. P. Tosi ◽  
G. Airoldi
Keyword(s):  
Excited State ◽  
Alkali Halides ◽  
Binding Energies ◽  
Impurity Complex ◽  
Vacancy Pair ◽  
First Excited State ◽  
Equilibrium Defects

First-excited-state energy of hydrogenic impurity bound polaron in an anisotropic quantum dot in an electric field

2019 ◽  
Vol 33 (32) ◽  
pp. 1950386
Author(s):  
Shi-Hua Chen
Keyword(s):  
Excited State ◽  
Binding Energy ◽  
Quantum Dot ◽  
Electric Field ◽  
Binding Energies ◽  
Hydrogenic Impurity ◽  
Bound Polaron ◽  
First Excited State ◽  
Trial Wavefunction ◽  
Anisotropic Quantum Dot

The first-excited-state (ES) binding energy of hydrogenic impurity bound polaron in an anisotropic quantum dot (QD) is obtained by constructing a variational wavefunction under the action of a uniform external electric field. As for a comparison, the ground-state (GS) binding energy of the system is also included. We apply numerical calculations to KBr QD with stronger electron–phonon (E–P) interaction in which the new variational wavefunction is adopted. We analyzed specifically the effects of electric field and the effects of both the position of the impurity and confinement lengths in the xy-plane and the [Formula: see text] direction on the ground and the first-ES binding energies (BEs). The results show that the selected trial wavefunction in the ES is appropriate and effective for the current research system.

Electronic structure and the dynamic Jahn–Teller effect on R′ centers in alkali halides

1970 ◽  
Vol 48 (14) ◽  
pp. 1694-1707 ◽  
Author(s):  
M. Inoue ◽  
R. Sati ◽  
S. Wang
Keyword(s):  
Excited State ◽  
Ground State ◽  
Optical Transition ◽  
Alkali Halides ◽  
Teller Distortion ◽  
Common Features ◽  
First Excited State ◽  
Jahn Teller ◽  
Jahn Teller Effect ◽  
Jahn Teller Distortion

The low-lying states of R′ centers in LiF, KCl, and KBr have been calculated using the quasicontinuum model of F aggregate centers. It turns out that the ground state of the R′ center is of 3A2 symmetry rather than 1A1 or 1E symmetry, and that the first excited state of the R′ center to which the optical transition occurs from its ground state is an orbitally doubly degenerate state (3E). The absorption line shape for the transition 3A2 → 3E of the R′ center has also been discussed for these crystals. The reasons for the presence of common features in the R′ bands in LiF, KCl, and KBr are pointed out. A comparison of the calculated results with the experimental results shows that the R′ band is due to the transition from the ground state of the R′ center (F3− center) to its first excited state perturbed by the dynamic Jahn–Teller distortion.

HALO IN THE EXCITED STATES FOR N = 41 ISOTONES

2006 ◽  
Vol 21 (36) ◽  
pp. 2751-2761
Author(s):  
MIAO YU ◽  
PENG-FEI ZHANG ◽  
TU-NAN RUAN ◽  
JIAN-YOU GUO
Keyword(s):  
Field Theory ◽  
Excited State ◽  
Excited States ◽  
Mean Field Theory ◽  
Mean Field ◽  
Binding Energies ◽  
Neutron Halo ◽  
Relativistic Mean Field Theory ◽  
Relativistic Mean Field ◽  
First Excited State

The properties of N = 41 isotones are investigated systemically by using the nonlinear relativistic mean field theory. It is found that all the calculating binding energies with four different interactions are comparable for the ground and low-lying excited states, and very close to the data available. The calculations show that there exists a neutron halo in the first excited state in 69 Ni , as well as in the second excited state in 69 Ni . It is also predicted that there exists a neutron halo in the first excited state in 65 Cr , 66 Mn , 67 Fe and 68 Co .

Effective three- and four-body forces in the five nucleon system

1978 ◽  
Vol 56 (10) ◽  
pp. 1382-1385
Author(s):  
J. J. Bevelacqua
Keyword(s):  
Excited State ◽  
Ground State ◽  
Body Force ◽  
Binding Energies ◽  
Nucleon System ◽  
Body Interaction ◽  
Body Forces ◽  
Ground State Properties ◽  
First Excited State ◽  
Three Body

Effective three-body forces utilized in the A = 3 and 4 systems are extended to the mass five system. The approach predicts an overestimate of the binding energies for both 5Li and 5He. An effective four-body interaction, derived from A = 4 ground state properties, is used in conjunction with this three-body force, and predicts results in agreement with experiment. The position of the first excited state is calculated to lie at 7.2 MeV excitation for both 5Li and 5He.

Lifetime of the First Excited State ofC15

1968 ◽  
Vol 166 (4) ◽  
pp. 988-991 ◽  
Author(s):  
R. A. Mendelson ◽  
R. T. Carpenter
Keyword(s):  
Excited State ◽  
First Excited State

Energy of the first excited state of Sr86

1963 ◽  
Vol 47 ◽  
pp. 443-448 ◽  
Author(s):  
Joseph W. Harpster ◽  
Donald L. Bennett ◽  
Karl J. Casper
Keyword(s):  
Excited State ◽  
First Excited State
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