Alternating electric force microscopy: Static electric field gradient imaging in an air atmosphere for Ba0.7Sr0.3TiO3 ferroelectric thin film

2012 ◽  
Vol 112 (12) ◽  
pp. 124110
Author(s):  
Jia Lu ◽  
Yukinori Kinoshita ◽  
Genta Egawa ◽  
Satoru Yoshimura ◽  
Hidefumi Asano ◽  
...  
Keyword(s):  
Thin Film ◽  
Electric Field ◽  
Electric Field Gradient ◽  
Field Gradient ◽  
Ferroelectric Thin Film ◽  
Electric Force ◽  
Static Electric Field ◽  
Force Microscopy ◽  
Air Atmosphere ◽  
Electric Force Microscopy

Birefringence induced by a static electric field gradient

1998 ◽  
Vol 94 (4) ◽  
pp. 595-604 ◽  
Author(s):  
A. G. DUMITRU ◽  
R. G. WOOLLEY
Keyword(s):  
Electric Field ◽  
Electric Field Gradient ◽  
Field Gradient ◽  
Static Electric Field

Connecting Electrical and Molecular Properties of Semiconducting Polymers for Thin-Film Transistors

MRS Bulletin ◽  
2008 ◽  
Vol 33 (7) ◽  
pp. 683-689 ◽  
Author(s):  
Michael L. Chabinyc ◽  
Leslie H. Jimison ◽  
Jonathan Rivnay ◽  
Alberto Salleo
Keyword(s):  
Thin Film ◽  
Recent Work ◽  
Electrical Transport ◽  
Thin Film Transistors ◽  
Molecular Properties ◽  
Semiconducting Polymers ◽  
Electric Force ◽  
Defect States ◽  
Force Microscopy ◽  
Electric Force Microscopy

AbstractAn overview of recent work on the connection between electrical and molecular properties of semiconducting polymers for thin-film transistors (TFTs) is presented. A description of the molecular packing and microstructure of amorphous to semicrystalline semiconducting polymers is presented. The features of basic models for electrical transport in TFTs are discussed. These studies indicate that defect states and traps are as important as ordered domains for understanding transport in semiconducting polymers. Advanced methods, such as electric force microscopy, useful for measuring the characteristics of defect states and charge traps, are briefly reviewed.

scholarly journals Potential barrier behavior in BiCuVOX materials

Cerâmica ◽  
2011 ◽  
Vol 57 (344) ◽  
pp. 428-430
Author(s):  
S. M. Gheno ◽  
P. I. Paulin F. ◽  
M. R. Morelli
Keyword(s):  
Ionic Conductivity ◽  
Electric Field ◽  
Potential Barrier ◽  
Field Distribution ◽  
Low Temperatures ◽  
Electric Field Distribution ◽  
Electric Force ◽  
Force Microscopy ◽  
Potential Barriers ◽  
Electric Force Microscopy

The BiMeVOX materials appear being high attractive for applications at low temperatures when the ionic conductivity is the determining parameter. The occurrence of many types substitution was confirmed for numerous Me ions, but the greatest interest have been focused on the BiCuVOX materials. The objective of this study was to image the potential barriers in BiCuVOX. The sample was sintered for 4 h at 750 °C and the results show that the high density compound can be obtained. Simultaneously, topography and electric force microscopy (EFM) images are viewed side-by-side. EFM experiments were performed and the results show the maps of the electric field distribution on the surface of BiCuVOX. The formation of potential barrier was observed and the width and intensity were measured.

Sub-10 nm spatial resolution for electrical properties measurements using bimodal excitation in electric force microscopy

2021 ◽  
Vol 92 (2) ◽  
pp. 023703
Author(s):  
Khaled Kaja ◽  
Denis Mariolle ◽  
Nicolas Chevalier ◽  
Adnan Naja ◽  
Mustapha Jouiad
Keyword(s):  
Electrical Properties ◽  
Spatial Resolution ◽  
Electric Force ◽  
Force Microscopy ◽  
Electric Force Microscopy

Spontaneous electric polarization and electric field gradient in hybrid improper ferroelectrics: insights and correlations

2021 ◽  
Author(s):  
Samuel Silva dos Santos ◽  
Michel L. Marcondes ◽  
Ivan P. Miranda ◽  
Pedro Rocha-Rodrigues ◽  
Lucy Vitória Credidio Assali ◽  
...  
Keyword(s):  
Electric Field ◽  
Electric Field Gradient ◽  
Ab Initio ◽  
Field Gradient ◽  
Electric Polarization ◽  
Double Perovskites

An ab-initio study for several hybrid improper ferroelectric (HIF) materials in the Ruddlesden-Popper phases and double perovskites structures is here presented. The focus is on the correlation between the electric...

AlN Nanotubes: A DFT Study of Al-27 and N-14 Electric Field Gradient Tensors

2007 ◽  
Vol 62 (12) ◽  
pp. 711-715 ◽  
Author(s):  
Ahmad Seif ◽  
Mahmoud Mirzaei ◽  
Mehran Aghaie ◽  
Asadollah Boshra
Keyword(s):  
Electric Field ◽  
Electric Field Gradient ◽  
Field Gradient ◽  
Density Functional ◽  
Quadrupole Coupling Constant ◽  
Basis Set ◽  
Basis Sets ◽  
B3lyp Method ◽  
Package Program ◽  
Nqr Parameters

Density functional theory (DFT) calculations were performed to calculate the electric field gradient (EFG) tensors at the sites of aliminium (27Al) and nitrogen (14N) nuclei in an 1 nm of length (6,0) single-walled aliminium nitride nanotube (AlNNT) in three forms of the tubes, i. e. hydrogencapped, aliminium-terminated and nitrogen-terminated as representatives of zigzag AlNNTs. At first, each form was optimized at the level of the Becke3,Lee-Yang-Parr (B3LYP) method, 6-311G∗∗ basis set. After, the EFG tensors were calculated at the level of the B3LYP method, 6-311++G∗∗ and individual gauge for localized orbitals (IGLO-II and IGLO-III) types of basis sets in each of the three optimized forms and were converted to experimentally measurable nuclear quadrupole resonance (NQR) parameters, i. e. quadrupole coupling constant (qcc) and asymmetry parameter (ηQ). The evaluated NQR parameters revealed that the considered model of AlNNT can be divided into four equivalent layers with similar electrostatic properties.With the exception of Al-1, all of the three other Al layers have almost the same properties, however, N layers show significant differences in the magnitudes of the NQR parameters in the length of the nanotube. Furthermore, the evaluated NQR parameters of Al-1 in the Al-terminated form and N-1 in the N-terminated form revealed the different roles of Al (base agent) and of N (acid agent) in AlNNT. All the calculations were carried out using the GAUSSIAN 98 package program.

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