Charge Transport in Germanium-Substituted Magnesium Ferrites

Malik, Md. Abdul; Reddy, V. Devender; Reddy, P. Venugopal; Sagar, D.R.; Prankishan,

doi:10.1142/s0217984994000959

Cited by 19 publications

(1 citation statement)

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“…It can be seen that the value of the mobility varies from 4.95 × 10 -6 to 1.65 × 10 -9 cm 2 /VS. Such low values of mobility have been reported by several researches [19][20][21][22]. The variation of charge carrier mobility values increases continuously with increasing temperature.…”

Section: Charge Carrier Mobility (μ)mentioning

confidence: 71%

Electrical Properties of Cadmium Substitution in Nickel Ferrites

Ande¹,

Somaiah²,

Ravinder³

et al. 2012

WJCMP

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Electrical transport properties such as conductivity (σ) and thermo electric power (S) of Cadmium substituted Nickel Ferrites, forming chemical formula Ni 1-x Cd x Fe 2 O 4 , where x = 0.0, 0.2, 0.4 have been investigated from room temperature to well beyond the Curie temperature. Plots of log (σT) versus 10 3 /T are linear and show a transition near the Curie temperature. The transition temperature is found to decrease with increase of Cd content. On the basis of Seebeck coefficient (S), the ferrites under investigation have been classified as n-type and p-type semiconductors. The values of charge carrier concentration and mobility have been computed from experimental values of Seebeck coefficient and electrical conductivity. The activation energy in the ferrimagnetic region is in general less than that in the paramagnetic region. An attempt is made to explain the conduction mechanism in these ferrites.

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Section: Charge Carrier Mobility (μ)mentioning

confidence: 71%