Re-crystallization of MNA under a strong dc electric field

Crystals of 2-methyl-4-nitroaniline were grown from solution while subjected to a dc electric field of 9.8×10 4 V m −1. This resulted in an alteration of the unit cell lattice parameters while the space group was modified from Cc to one of its subgroups Pc. The modified crystals display an increased...

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Bibliographic Details
Published in:Solid state sciences 2001, Vol.3 (6), p.733-740
Main Authors: Nogueira, Elisabete Maria da Silva Marques, de Matos Gomes, Etelvina, Belsley, Michael Scott, Lanceros-Méndez, Senentxu, Cunha, José Maria Cerqueira, Criado Vega, Alberto, Mano, João Filipe Colardelle da Luz
Format: Article
Language:English
Subjects:
Cross-disciplinary physics: materials science
rheology
Crystal growth
Exact sciences and technology
Fundamental areas of phenomenology (including applications)
Growth from solutions
Materials science
Methods of crystal growth
physics of crystal growth
Nonlinear optical crystals
Nonlinear optical materials
Optical materials
Optics
Organic compounds
Physics
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Summary:Crystals of 2-methyl-4-nitroaniline were grown from solution while subjected to a dc electric field of 9.8×10 4 V m −1. This resulted in an alteration of the unit cell lattice parameters while the space group was modified from Cc to one of its subgroups Pc. The modified crystals display an increased second harmonic generation efficiency accompanied by a decrease in the dielectric permittivity as well as changes in the internal and external vibrational modes. Graphic
ISSN:1293-2558
1873-3085
DOI:10.1016/S1293-2558(01)01181-5