Artículo

Effect of Cr3+ substitution on magnetic and electrical properties of (Ni0.3Cu0.7) Fe2O4 spinel ferrites

Bashir, K. Bashir; ul Islam, M.; Ajmal, M.; Waqas Nafees, M.; Iftikhar, A.; Gul, I. H.; Naseem, S. N; Mehmood, K.

Facultad de Ciencias, UNAM, publicado en Revista Mexicana de Física, y cosechado de Revistas UNAM

Licencia de uso

Procedencia del contenido

Entidad o dependencia
Facultad de Ciencias, UNAM
Revista
Repositorio
Contacto
Revistas UNAM. Dirección General de Publicaciones y Fomento Editorial, UNAM en revistas@unam.mx

Cita

Bashir, K. Bashir, et al. (2020). Effect of Cr3+ substitution on magnetic and electrical properties of (Ni0.3Cu0.7) Fe2O4 spinel ferrites. Revista Mexicana de Física; Vol 66, No 5 Sept-Oct: 573-579. Recuperado de https://repositorio.unam.mx/contenidos/4106926

Descripción del recurso

Autor(es)
Bashir, K. Bashir; ul Islam, M.; Ajmal, M.; Waqas Nafees, M.; Iftikhar, A.; Gul, I. H.; Naseem, S. N; Mehmood, K.
Adscripción del autor
No supporting agencies
Tipo
Artículo de Investigación
Área del conocimiento
Físico Matemáticas y Ciencias de la Tierra
Título
Effect of Cr3+ substitution on magnetic and electrical properties of (Ni0.3Cu0.7) Fe2O4 spinel ferrites
Fecha
2020-09-01
Resumen
Chromium substituted copper base spinel ferrites (Ni0.3Cu0.7)CrxFe2-xO4 were prepared by Sol-gel method. Structural, magnetic and electrical properties were studied by utilizing X-ray diffractometer, Vibrating sample magnetometer, and precision LCR-meter using lab-tracer software. The X-ray diffraction analysis confirmed the formation of single phase fcc structure of the samples. The lattice constant and crystallite size decreased from 8.37-8.23Å and 53.09-35.36nm respectively with increasing content of Cr3+ ions. From MH loops it was observed that the saturation magnetization decreased and coercivity increased with increasing content of Cr3+ ions. Dc resistivity increased with increase of Cr3+ concentration and decreased with increase in temperature which shows the semiconducting behavior of ferrites. The dielectric constant, dielectric loss and tangent loss decreased with increase of Cr3+ concentration. The dielectric constant follows bilayer Maxwell Wagner model and Koop’s phenomenological theory while ac conductivity increased with increasing frequency following Jonscher’s power law.
Tema
Ferrites; Sol gel; XRD; Dielectric constant; electrical resistivity; magnetic properties
Idioma
eng
ISSN
2683-2224 (digital); 0035-001X (impresa)

Enlaces