ELECTRICAL BEHAVIOR OF A Cu2Fe0.4Co0.6SnS4 CERAMIC
The solid solutions Cu2Fe1-X CoX SnS4, with stannite-type structure are stable up to about 800°C. The electrical properties of the Cu2Fe0.4Co0.6SnS4 ceramic were investigated by complex impedance. The real and imaginary dielectric permittivity dependence with the temperature were measured between 10kHz and 1 MHz in temperature range 77-280K, finding that the ceramic present the characteristics behavior of a dielectric relaxation between 100 and 250 K, with a maximum at approximately 200 K. The electric permittivity found has orders of magnitude between 10² and 10³. A space charge polarization mechanism is suggested to explain the observed electric relaxation.
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Autores principales: | LÓPEZ-VERGARA,FERNANDA, GALDÁMEZ,ANTONIO, MANRÍQUEZ,VÍCTOR |
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Formato: | Digital revista |
Idioma: | English |
Publicado: |
Sociedad Chilena de Química
2013
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Acceso en línea: | http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072013000400051 |
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