Dipole-Dipole Interaction Model for Oriented Attachment of BaTiO3 Nanocrystals Revisited

2013 ◽  
Vol 582 ◽  
pp. 145-148 ◽  
Author(s):  
Kyuichi Yasui ◽  
Kazumi Kato
Keyword(s):  
Single Crystal ◽  
Numerical Simulations ◽  
Spontaneous Polarization ◽  
Interaction Model ◽  
Dipole Interaction ◽  
Oriented Attachment ◽  
Order Of Magnitude ◽  
Ultrasound Assisted ◽  
Oriented Aggregation

Numerical simulations of the oriented aggregation of BaTiO3 nanocrystals using the dipole-dipole interaction model have been performed under conditions corresponding to those used in ultrasound-assisted synthesis. The results suggest that BaTiO3 nanocrystals with a diameter of 5 nm have a spontaneous polarization that is not more than one order of magnitude lower than the value of ~0.15 C/m2 for a macroscopic BaTiO3 single crystal.

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.

Construction of EuF3 hollow sub-microspheres and single-crystal hexagonal microdiscs via Ostwald ripening and oriented attachment

CrystEngComm ◽  
2009 ◽  
Vol 11 (8) ◽  
pp. 1591 ◽  
Author(s):  
Zhiming Chen ◽  
Zhirong Geng ◽  
Menglu Shi ◽  
Zhihui Liu ◽  
Zhilin Wang
Keyword(s):  
Single Crystal ◽  
Ostwald Ripening ◽  
Oriented Attachment

Effect of Interaction Modeling in AFM-Based Nanomanipulation

2008 ◽  
Author(s):  
Fakhreddine Landolsi ◽  
Fathi H. Ghorbel ◽  
James B. Dabney
Keyword(s):  
Experimental Data ◽  
Numerical Simulations ◽  
Interaction Model ◽  
Collision Process ◽  
Visual Sensing ◽  
Proposed Model ◽  
Interaction Modeling

AFM-based nanomanipulation is very challenging because of the complex mechanics in tip-sample interactions and the limitations in AFM visual sensing capabilities. In the present paper, we investigate the modeling of AFM-based nanomanipulation emphasizing the effects of the relevant interactions at the nanoscale. The major contribution of the present work is the use of a combined DMT-JKR interaction model in order to describe the complete collision process between the AFM tip and the sample. The coupling between the interactions and the friction at the nanoscale is emphasized. The efficacy of the proposed model to reproduce experimental data is demonstrated via numerical simulations.

Stimuli-Responsive Luminescent Supramolecular Assemblies and Co-assemblies by Orthogonal Dipole-Dipole Interaction and Halogen Bonding

2021 ◽  
Author(s):  
Akshoy Jamadar ◽  
Ajeet Kumar Singh ◽  
Lisa Roy ◽  
Anindita Das
Keyword(s):  
Crystal Structure ◽  
Single Crystal ◽  
Structure Analysis ◽  
Halogen Bonding ◽  
Dipole Interaction ◽  
Crystal Structure Analysis ◽  
Supramolecular Assemblies ◽  
Single Crystal Structure ◽  
Stimuli Responsive ◽  
Single Crystal Structure Analysis

This article reports π-chromophore assemblies from three structurally related dipolar naphthalene monoimide (NMI) luminogens (M1, M2 and M3) by underexplored orthogonal dipole-dipole interaction and halogen bonding. Single crystal structure analysis...

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
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