SrSn0.95Fe0.05O3 films were grown on oxidized silicon and quartz substrates by RF sputtering technique. The electronic transport and optical properties of the films were investigated. The temperature dependence of electronic conductivity has been analyzed quantitatively using Mott's small polaron hopping model in the temperature range Room Temperature (RT) -240 K and variable range hopping model in the temperature range 240-190 K. © 2012 American Institute of Physics.

Nirup Harish Kumar

IIT Madras is a public technical and research university located in Chennai, Tamil Nadu. Founded in 1959, it is recognised as an Institute of National Importance.

IIT Madras has been ranked as the top engineering institute in India for four years in a row by the National Institutional Ranking Framework of the MHRD

It currently offers undergraduate, postgraduate and research degrees across 16 disciplines in Engineering, Sciences, Humanities and Management. About 596 faculty belonging to science and engineering departments and centres of the Institute are engaged in teaching, research and industrial consultancy.

IIT Madras

The optical and electronic transport properties of SrSn0.95Fe0.05O3 films

AIP Conference Proceedings

SrSn1-xFexO3 (x = 0.03, 0.04, 0.05) was prepared by solid state synthesis technique. The structural, magnetic and transport properties of the doped samples were investigated. The Reitveld refinement of the X-Ray data for all the compositions was performed. The parent compound SrSnO3 is a diamagnet. Room temperature ferromagnetism was observed in polycrystalline Fe doped SrSnO3. At room temperature the compositions SrSn0.96Fe0.04O3 and SrSn 0.95Fe0.05O3 were ferromagnetic in nature. At 1.8 K all the compositions show ferromagnetic ordering. The theoretical electronic structure calculation showed that the Fermi energy (EF) passes through the minority spin impurity states indicating the system to be half metallic. All the compositions show semiconducting behaviour in the resistivity measurements and with an increase in Fe concentration the conductivity of the sample increases as the activation energy decreases. © 2010 Elsevier Ltd. All rights reserved.

Solid State Communications

Structural, magnetic and semiconducting properties of Fe doped SrSnO 3

Applied Physics Letters

Structural transformation induced changes in the optical properties of nanocrystalline tungsten oxide thin films

Journal of Physics: Condensed Matter

Electrical conduction mechanisms in thermally evaporated tungsten trioxide (WO3) thin films

Nature Materials

Donor impurity band exchange in dilute ferromagnetic oxides

Cation-size control of structural phase transitions in tin perovskites

The optical and electronic transport properties of SrSn 0.95Fe0.05O3 films

Journal	AIP Conference Proceedings
ISSN	0094243X
Open Access	No