scholarly journals Three-dimensional reconstructions of electrostatic potential distributions with 1.5-nm resolution using off-axis electron holography

Microscopy ◽  
2011 ◽  
Vol 61 (2) ◽  
pp. 77-84 ◽  
Author(s):  
Toshiaki Tanigaki ◽  
Shinji Aizawa ◽  
Takahiro Suzuki ◽  
Akira Tonomura
Keyword(s):  
Electrostatic Potential ◽  
Three Dimensional ◽  
Electron Holography

scholarly journals Three-dimensional electrostatic potential of a Sip-njunction revealed using tomographic electron holography

2006 ◽  
Vol 26 ◽  
pp. 29-32 ◽  
Author(s):  
A C Twitchett ◽  
T J V Yates ◽  
R E Dunin-Borkowski ◽  
S B Newcomb ◽  
P A Midgley
Keyword(s):  
Electrostatic Potential ◽  
Three Dimensional ◽  
Electron Holography

Electron Holographic Nano-Characterization of Gold Catalyst at Interface

2002 ◽  
Vol 727 ◽  
Author(s):  
S. Ichikawa ◽  
T. Akita ◽  
M. Okumura ◽  
M. Haruta ◽  
K. Tanaka
Keyword(s):  
Contact Angle ◽  
Titanium Oxide ◽  
Gold Catalyst ◽  
Three Dimensional ◽  
High Resolution Electron Microscopy ◽  
Electron Holography ◽  
Gold Particles ◽  
Oxide Support ◽  
The Mean ◽  
A Charge

AbstractThe catalytic properties of nanostructured gold catalyst are known to depend on the size of the gold particles and to be activated when the size decreases to a few nanometers. We investigated the size dependence of the three-dimensional nanostructure on the mean inner potential of gold catalysts supported on titanium oxide using electron holography and high-resolution electron microscopy (HREM). The contact angle of the gold particles on the titanium oxide tended to be over 90° for gold particles with a size of over 5 nm, and below 90° for a size of below 2 nm. This decreasing change in the contact angle (morphology) acts to increase the perimeter and hence the area of the interface between the gold and titanium oxide support, which is considered to be an active site for CO oxidation. The mean inner potential of the gold particles also changed as their size decreased. The value of the inner potential of gold, which is approximately 25 V in bulk state, rose to over 40 V when the size of the gold particles was less than 2 nm. This phenomenon indicates the existence of a charge transfer at the interface between gold and titanium oxide. The 3-D structure change and the inner potential change should be attributed to the specific electronic structure at the interface, owing to both the “nano size effect” and the “hetero-interface effect.”

The Prospect of Three-Dimensional Induction Mapping Inside Magnetic Nanostructures by Combining Electron Holography with Electron Tomography

2004 ◽  
Vol 10 (S02) ◽  
pp. 1010-1011 ◽  
Author(s):  
Rafal E Dunin-Borkowski ◽  
Takeshi Kasama
Keyword(s):  
Electron Tomography ◽  
Three Dimensional ◽  
Magnetic Nanostructures ◽  
Electron Holography

Extended abstract of a paper presented at Microscopy and Microanalysis 2004 in Savannah, Georgia, USA, August 1–5, 2004.

scholarly journals Initial boundary value problems for the three-dimensional compressible elastic Navier-Stokes-Poisson equations

2021 ◽  
Vol 10 (1) ◽  
pp. 1356-1383
Author(s):  
Yong Wang ◽  
Wenpei Wu
Keyword(s):  
Equilibrium State ◽  
Boundary Value Problems ◽  
Electrostatic Potential ◽  
Boundary Value ◽  
Three Dimensional ◽  
Initial Boundary ◽  
Navier Stokes ◽  
Initial Boundary Value Problems ◽  
Poisson Equations ◽  
Initial Boundary Value

Abstract We study the initial-boundary value problems of the three-dimensional compressible elastic Navier-Stokes-Poisson equations under the Dirichlet or Neumann boundary condition for the electrostatic potential. The unique global solution near a constant equilibrium state in H 2 space is obtained. Moreover, we prove that the solution decays to the equilibrium state at an exponential rate as time tends to infinity. This is the first result for the three-dimensional elastic Navier-Stokes-Poisson equations under various boundary conditions for the electrostatic potential.

Mapping the electrostatic potential across AlGaN∕AlN∕GaN heterostructures using electron holography

2007 ◽  
Vol 90 (3) ◽  
pp. 032101 ◽  
Author(s):  
Z. H. Wu ◽  
M. Stevens ◽  
F. A. Ponce ◽  
W. Lee ◽  
J. H. Ryou ◽  
...  
Keyword(s):  
Electrostatic Potential ◽  
Electron Holography

Split-illumination electron holography for improved evaluation of electrostatic potential associated with electrophotography

2014 ◽  
Vol 104 (13) ◽  
pp. 131601 ◽  
Author(s):  
Toshiaki Tanigaki ◽  
Kuniaki Sato ◽  
Zentaro Akase ◽  
Shinji Aizawa ◽  
Hyun Soon Park ◽  
...  
Keyword(s):  
Electrostatic Potential ◽  
Electron Holography

Empirical and Accurate Method for the Three-Dimensional Electrostatic Potential (EM-ESP) of Biomolecules

2010 ◽  
Vol 114 (12) ◽  
pp. 4351-4357 ◽  
Author(s):  
Qi-Shi Du ◽  
Cheng-Hua Wang ◽  
Yu-Ting Wang ◽  
Ri-Bo Huang
Keyword(s):  
Electrostatic Potential ◽  
Three Dimensional ◽  
Accurate Method
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