Journal
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
Volume 377, Issue -, Pages 197-203Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jmmm.2014.10.069
Keywords
Double pervoskites; FP-LAPW; Electronic Properties; Thermoelectric properties
Funding
- Higher Education Commission of Pakistan
- National Plan for Science, Technology and innovation [ADV-1498]
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Effect of spin polarization on the electronic and thermoelectric properties of double pervoskites La2NiMnO6 and La2CoMnO6 are studied using the lull potential linearized augmented plane wave method. Further magnetic properties of the compound are also determined. Both compounds are indirect bandgap ferromagnetic materials. La2NiMnO6 compound has a large band gap energy as compared to La2CoMnO6 compound in both spin up and spin down states. The electrical conductivity, thermal conductivity and thermoelectric power increase with temperature for both the compounds in the spin up state, while the spin down state unchanged with the increase of temperature. There is no significant variation observed in Seebeck coefficient S with temperature for spin up state while the Seebeck coefficient decrease with he increase of temperature in both compounds for spin down state. The calculated total magnetic moments for both compounds reveals the strong ferromagnetic nature. (C) 2014 Elsevier B.V. All rights reserved.
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