Algorithm to compute the electric field gradient tensor in ionic crystals



Document title: Algorithm to compute the electric field gradient tensor in ionic crystals
Journal: Revista mexicana de física
Database: PERIÓDICA
System number: 000350589
ISSN: 0035-001X
Authors: 1
1
Institutions: 1Universidad Nacional Autónoma de México, Facultad de Ciencias, México, Distrito Federal. México
Year:
Season: Feb
Volumen: 58
Number: 1
Pages: 13-18
Country: México
Language: Inglés
Document type: Artículo
Approach: Analítico, teórico
English abstract A simple algorithm and a computational program to numerically compute the electric field gradient and the concomitant quadrupolar nuclear splitting is developed for an arbitrary ionic crystal. The calculations are performed using a point charge model. The program provides three different ways for the data input: by Bravais lattices, by lattice parameters, or by introducing any spatial structure. The program calculates the components of the electric field gradient, the asymmetry parameter and the quadrupolar splitting for a given number of nearest neighbors with respect to the nuclear charge as origin. In addition, the program allows the use of different Sternheimer antishielding factors
Disciplines: Física y astronomía
Keyword: Física de materia condensada,
Gradiente de campo eléctrico,
Cuadrupolo,
Espectroscopía Mossbauer,
Algoritmos,
Parámetro de asimetría,
Cristales iónicos
Keyword: Physics and astronomy,
Condensed matter physics,
Electric field gradient,
Quadrupole,
Mossbauer spectroscopy,
Algorithms,
Asymmetry parameter,
Ionic crystals
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