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Lowering Effective Coordination Promotes Adsorption of NO on Rh(100) and Rh/MgO(100)surfaces
Raghani Pushpa, Prasenjit Ghosh, Shobhana Narasimhan +1
We have studied the adsorption of NO, and the coadsorption of N and O, on four physical and hypothetical systems: unstrained and strained Rh(100) surfaces and monolayers of Rh atom…
Interplay between Bonding and Magnetism in the Adsorption of NO on Rh Clusters
Prasenjit Ghosh, Raghani Pushpa, Stefano de Gironcoli +1
We have studied the adsorption of NO on small Rh clusters, containing one to five atoms, using density functional theory in both spin-polarized and non-spin-polarized forms. We fin…
Lifting of Ir{100} reconstruction by CO adsorption: An ab initio study
Prasenjit Ghosh, Shobhana Narasimhan, Stephen J. Jenkins +1
The adsorption of CO on unreconstructed and reconstructed Ir{100} has been studied, using a combination of density functional theory and thermodynamics, to determine the relative s…
The Nature of Vibrations of a 2-D Disordered Lattice Model with Nano-scale Order
Prasenjit Ghosh, Umesh V. Waghmare
Motivated by the unusual soft mode anomalies in the relaxor ferroelectrics, we present a numerical study of vibrational excitations of a disordered lattice model with chemical orde…