The Contribution of Hot Electron Spin Polarization to the Magnetotransport in a Spin-Valve Transistor at Finite Temperatures

The effect of spin mixing due to thermal spin waves and temperature dependence of hot electron spin polarization to the collector current in a spin-valve transistor has been theoretically explored. We calculate the collector current as well as the temperature dependence of magnetocurrent at finite temperatures to investigate the relative importance of spin mixing and hot electron spin polarization. In this study the inelastic scattering events in ferromagnetic layers have been taken into account to explore our interests. The theoretical calculations suggest that the temperature dependence of hot electron spin polarization has substantial contribution to the magnetotransport in the spin-valve transistor.Comment: 8 pages and 6 figure

Kinetics & Mechanism of Ag+-catalysed Oxidation of 1,3-Propanediol by Peroxydisulphate Ion - A Reinvestigation

1114-111

Kinetics & Mechanism of Ag+-catalysed Oxidation of Glycerol by Peroxydisulphate-An Analysis of Consecutive Reactions

1061-106

Socio economic profile of direct seeded rice (DSR) farmers of Haryana

The study has focused on socio economic profile, adoption level of Direct seeded rice (DSR) farmers and extension strategy to increase the adoption of DSR cultivation in Haryana (India). More than half of respondents (51.66 %) belonged to the middle age group 36-50 years and maximum 21.67 per-cent farmer qualification found metric. Majority of the farmers (50.83 per cent) had low level of socio-economic. Economic motivation of farmers was 70.83 per cent belonged to low to moderate level, whereas 67.5 per-cent of respondents belonged moderate to high innovation proneness. The overall adoption level of DSR technology was low to moderate, since 70 per-cent of respondents belonged to low to medium category

Potent antimicrobial activity of Rhizophora mucronata

The antimicrobial activity of n-hexane, chloroform and methanol extracts of leaves and roots of the plant Rhizophora mucronata were studied. Ampicillin and clotrimazole were used as standard antibacterial and antifungal agents respectively. The result of the study revealed that the n-hexane extract and chloroform extract of leaves exhibited strong inhibitory action against Bacillus subtilis, Staphylococcus aureus, Candida albicans, Aspergillus fumigatus and Aspergillus niger and moderate inhibitory action against Pseudomonas aeruginosa and Proteus vulgaris. The rest of the extracts showed good inhibitory activity