Semiempirical lower limit to the electric field gradient at the hydrogen nucleus in a diatomic hydride

1990 ◽  
Vol 30 (4) ◽  
pp. 676-679
Author(s):  
A. I. Ivanov ◽  
T. K. Rebane
Keyword(s):  
Electric Field ◽  
Electric Field Gradient ◽  
Field Gradient ◽  
Lower Limit ◽  
Hydrogen Nucleus ◽  
Diatomic Hydride

Electronic structure and electric field gradient calculations for the Zr2Ni intermetallic compound

2009 ◽  
Vol 100 (9) ◽  
pp. 1239-1241
Author(s):  
A. Umićević ◽  
J. Belošević-Čavor ◽  
V. Koteski ◽  
B. Cekić ◽  
V. Ivanovski
Keyword(s):  
Electronic Structure ◽  
Intermetallic Compound ◽  
Electric Field ◽  
Electric Field Gradient ◽  
Field Gradient

Real-space method for calculation of the electric field gradient: comparison with k-space results

1990 ◽  
Vol 2 (1) ◽  
pp. 149-158 ◽  
Author(s):  
M Methfessel ◽  
S Frota-Pessoa
Keyword(s):  
Electric Field ◽  
Electric Field Gradient ◽  
Field Gradient ◽  
Real Space ◽  
Space Method

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.

Electric field gradient in Cu2O from band structure calculations

1989 ◽  
Vol 52 (2) ◽  
pp. 153-159 ◽  
Author(s):  
P. Blaha ◽  
K. Schwarz
Keyword(s):  
Band Structure ◽  
Electric Field ◽  
Electric Field Gradient ◽  
Field Gradient ◽  
Band Structure Calculations ◽  
Structure Calculations

scholarly journals Continuous Droplet-Actuating Platforms via an Electric Field Gradient: Electrowetting and Liquid Dielectrophoresis

Langmuir ◽  
2021 ◽  
Author(s):  
Iman Frozanpoor ◽  
Michael. D. Cooke ◽  
Vibin Ambukan ◽  
Andrew. J. Gallant ◽  
Claudio Balocco
Keyword(s):  
Electric Field ◽  
Electric Field Gradient ◽  
Field Gradient ◽  
Liquid Dielectrophoresis
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