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Magnetic properties and nanostructural changes in the diamagnetic ionic systems

IOAN G. POP1,*

Affiliation

  1. Department of Management, Emmanuel University of Oradea, Romania

Abstract

The investigation of magnetic properties of ionic crystalline systems, in which the total electron spin equals zero, is one of the universal methods of studying the character of chemical bonding in such materials. In this paper is made an evaluation of the influence of deformation and overlapping of ionic clouds in the crystalline field. We are interested in a correct evaluation of the ionic deformation, in the same time being interested in the determination of the overlapping contribution for evaluations of magnetic properties, diamagnetic and paramagnetic too. For this purpose was developped a theoretical model, which allows us to make all investigations on ionic-covalent and covalent-ionic compounds. The results are in a good agreement with experimental investigations made on such systems, being superior to the results obtained by other methods and models. In this work is presented a correlation formula between total magnetic susceptibility χ and paramagneticVanVleck susceptibility para χ . Through the model proposed it is possible to find a correlation between the magnetic properties and the nanostructural configuration of the deformations of outer electronic clouds and the overlapping of these ions..

Keywords

Susceptibility, Chemical bond, Diamagnetism, Paramagnetism, Alkali halides, Magnetic nanostructures.

Submitted at: Nov. 15, 2006
Accepted at: March 15, 2007

Citation

IOAN G. POP, Magnetic properties and nanostructural changes in the diamagnetic ionic systems, Journal of Optoelectronics and Advanced Materials Vol. 9, Iss. 3, pp. 557-560 (2007)