| Autor: |
Abbas, S., Fatima-Tuz-Zahra, Saeed, M., Munir, A., Anis-Ur-Rehman, M. |
| Předmět: |
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| Zdroj: |
Journal of Superconductivity & Novel Magnetism; Aug2017, Vol. 30 Issue 8, p2341-2345, 5p |
| Abstrakt: |
Spinel ferrites are an important class of compounds which have a variety of electrical, magnetic, and catalytic applications. Neodymium-doped cobalt ferrites with composition CoNdFeO where x is 0.00-0.20 were synthesized by a sol-gel method. A sol-gel method was preferred because it has good control over stoichiometry, crystallite size, and particle size distribution. An X-ray diffraction (XRD) technique was used for structural analysis, and a crystal structure was found to be spinel for all samples. Fourier transform infrared spectroscopy (FTIR) of the samples was also performed for structural information. DC resistivity has been studied, as a function of temperature, by using a two-probe method. It showed direct dependence on temperature and inverse dependence on the concentration of Nd dopant. I- V characteristics of samples at room temperature were analyzed. The non-linear I- V curves showed a non-ohmic behavior. When voltage was reversed, it did not follow the same values but showed a hysteresis loop-type trend. This confirms the presence of resistive switching effect in this voltage range at room temperature. The studied material is a potential candidate for resistive random access memory application. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
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