Importance of conduction electron correlation in a Kondo lattice, Ce2CoSi3

Kondo systems are usually described by the interaction of strong correlation induced local moment with the highly itinerant conduction electrons. Here, we study the role of electron correlations among conduction electrons in the electronic structure of a Kondo lattice compound, Ce$_2$CoSi$_3$, using high resolution photoemission spectroscopy and {\it ab initio} band structure calculations, where Co 3$d$ electrons contribute in the conduction band. High energy resolution employed in the measurements helped to reveal signature of Ce 4$f$ states derived Kondo resonance feature at the Fermi level and dominance of Co 3$d$ contributions at higher binding energies in the conduction band. The line shape of the experimental Co 3$d$ band is found to be significantly different from that obtained from the band structure calculations within the local density approximations, LDA. Consideration of electron-electron Coulomb repulsion, $U$ among Co 3$d$ electrons within the LDA+$U$ method leads to a better representation of experimental results. Signature of electron correlation induced satellite feature is also observed in the Co 2$p$ core level spectrum. These results clearly demonstrate the importance of the electron correlation among conduction electrons in deriving the microscopic description of such Kondo systems.Comment: 6 figure

A Study on Destination Image of Kerala as an Ayurvedic Health Care Destination

Travel and health are complimentary to each other. Recently there is a demand for stress relieving holidays as people preferred to go for particular holiday destinations where their health was also looked after and where they could rejuvenate themselves. Kerala identified this need and projected itself as a healthcare destination .The Present study concentrates mainly on Kerala‟s holistic healthcare system-Ayurveda. Ayurveda plays a major role in Kerala‟s round the year tourism.  The study is based on the fact that the growth in the health tourism definitely provides sustainable benefits to the Kerala tourism market. Destination image is generally considered as an important attribute in successful destination marketing. This paper aims to identify various destination features which contribute to build a positive destination image about Kerala as a healthcare destination and to understand the relationship between tourist perception and satisfaction. The study explores the destination image enhancement opportunities that exist between the tourist preferences and satisfaction in the desired healthcare service delivery.&nbsp