Artículo

ESR and magnetic studies of nickel ions doped P2O5–ZnO–Na2O glassy system

Rayan, D. A.; Elbashar, Y. H.; Moslem, S.

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

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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

Rayan, D. A., et al. (2020). ESR and magnetic studies of nickel ions doped P2O5–ZnO–Na2O glassy system. Revista Mexicana de Física; Vol 66, No 5 Sept-Oct: 580-584. Recuperado de https://repositorio.unam.mx/contenidos/4107749

Descripción del recurso

Autor(es)
Rayan, D. A.; Elbashar, Y. H.; Moslem, S.
Tipo
Artículo de Investigación
Área del conocimiento
Físico Matemáticas y Ciencias de la Tierra
Título
ESR and magnetic studies of nickel ions doped P2O5–ZnO–Na2O glassy system
Fecha
2020-09-01
Resumen
We prepared 42P2O5–40ZnO–(18-x)Na2O–(x)NiO glasses doped with xNiO where 1 ≤ x ≤ 6 mol.%. The optical absorption indicates that the nickel ions exist in both sites tetrahedral and octahedral as the concentration of NiO is increased. This investigation has provided the increasing degree of disorder in the glass network at higher concentrations of NiO. The magnetic characteristics investigated by two techniques electron spin resonance (ESR) spectra and magnetic properties using vibrating sample magnetometer (VSM) at room temperature. The ESR spectra exhibit resonance signal without hyperfine interaction of all the investigated glass samples. It is found that Ni2+ ions were in octahedral sites and it has 3A2g as ground state. The spin-Hamiltonian parameters are evaluated from the ESR spectra and we found a variation of   and   with different nickel concentration. Interesting results are found for the number of Ni2+ ions participating in resonance (N) and paramagnetic susceptibility (χ). The magnetic properties were performed at room temperature under an applied field of 20 kOe and the hysteresis loops of the powders were extracted for all the considered samples.
Tema
ESR characterization; magnetic properties; Transition metal ions
Idioma
eng
ISSN
2683-2224 (digital); 0035-001X (impresa)

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