Comment on the Validity of the Atom Monopole−Dipole Interaction Model for Optical Activity

1998 ◽  
Vol 102 (39) ◽  
pp. 7723-7724 ◽  
Author(s):  
Jon Applequist
Keyword(s):  
Optical Activity ◽  
Interaction Model ◽  
Dipole Interaction

scholarly journals The dipole interaction model of the molecular aggregation in Y-type Langmuir-Blodgett film

2007 ◽  
Vol 56 (11) ◽  
pp. 6565
Author(s):  
Bai Lei ◽  
Han Kui ◽  
Tang Gang ◽  
Li Hai-Peng ◽  
Wang Hong-Tao ◽  
...  
Keyword(s):  
Interaction Model ◽  
Dipole Interaction ◽  
Molecular Aggregation ◽  
Blodgett Film ◽  
Langmuir Blodgett ◽  
Langmuir Blodgett Film

Dipole-Dipole Interaction Model for Oriented Aggregation of BaTiO3 Nanocrystals

2014 ◽  
Vol 1663 ◽  
Author(s):  
Kyuichi Yasui ◽  
Kazumi Kato
Keyword(s):  
Aqueous Solution ◽  
Dipole Moment ◽  
Numerical Simulations ◽  
Electric Dipole Moment ◽  
Electric Dipole ◽  
Primary Particle ◽  
Interaction Model ◽  
Dipole Interaction ◽  
Ultrasound Assisted ◽  
Oriented Aggregation

ABSTRACTIn order to study the oriented aggregation of BaTiO3nanocrystals in the ultrasound-assisted synthesis in an aqueous solution [F.Dang et al., Jpn.J.Appl.Phys. 48, 09KC02 (2009)], the electric dipole-dipole interaction model has been studied by numerical simulations. The results of the numerical simulations are consistent with the experimental ones if the electric dipole moment of a primary particle (a nanocrystal) of 5 nm in diameter is about 10 D =3.3 x 10-29 (C m). It suggests that a 5-10 nm BaTiO3 nanocrystal synthesized in an aqueous solution with ultrasound has spontaneous polarization.

Side bands in collective resonance fluorescence

1985 ◽  
Vol 63 (3) ◽  
pp. 335-338
Author(s):  
H. R. Zaidi
Keyword(s):  
Fluorescence Spectrum ◽  
Line Width ◽  
Rabi Frequency ◽  
Interaction Model ◽  
Dipole Interaction ◽  
Markov Approximation ◽  
Resonance Fluorescence ◽  
Pump Field ◽  
Field Frequency ◽  
Side Band

The fluorescence spectrum of a system of strongly driven atoms, contained in a region that is small compared with the wavelength, is calculated using a screened interaction model. Coulomb dipole–dipole interaction is neglected, but a Markov approximation is not made. The side bands at ω′ = ω ± Ω and ω ± 2Ω are investigated in detail (ω′(ω) is the emitted photon (pump field) frequency; Ω is the Rabi frequency). The intensity and line width of the side bands at ω ± 2Ω is reduced owing to S breaking in our model. Non-Markovian corrections split the side band at ω ± Ω.

LEVITATION FORCE BETWEEN A SHORT MAGNETIC BAR AND A SUPERCONDUCTING CYLINDER IN THE MEISSNER STATE

2006 ◽  
Vol 20 (24) ◽  
pp. 1549-1557 ◽  
Author(s):  
M. K. ALQADI ◽  
F. Y. ALZOUBI ◽  
H. M. AL-KHATEEB ◽  
N. Y. AYOUB
Keyword(s):  
Interaction Energy ◽  
Magnetic Dipole ◽  
Levitation Force ◽  
Orientation Angle ◽  
Interaction Model ◽  
Dipole Interaction ◽  
Meissner State ◽  
Analytical Expression ◽  
Superconducting Cylinder ◽  
Physical Dimensions

We have calculated the levitation force and interaction energy between a short magnetic bar and a superconducting cylinder in the Meissner state using the dipole–dipole interaction model. We derived analytical expression of the levitation force acting on the short magnet as a function of the orientation angle of magnetic dipole, and the physical dimensions of the magnet-superconductor system. The effects of the thickness of the superconductor and the length of the magnet on the levitation force were studied.

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