38 citations · 93 across the 8 of their papers we have counts for
8 papers
On the Possibility of Ferromagnetism and Half-Metallicity in Local Moment Systems
L. Haritha, G. Gangadhar Reddy, A. Ramakanth
We use the Kondo lattice model to investigate the possibility of ferromagnetism and half-metallicity in local moment systems. Using the spectral density approach and making use of…
Interplay of magnetic order and Jahn-Teller distortion in a model with strongly correlated electron system
L. Haritha, G. Gangadhar Reddy, A. Ramakanth +2
The Hubbard model has been employed successfully to understand many aspects of correlation driven physical properties, in particular, the magnetic order in itenerant electron syste…
Model of the Interplay of Band J-T Effect with Magnetic Order Mediated by Exchange Interaction
G. Gangadhar Reddy, A. Ramakanth, S. K. Ghatak +3
A model calculation is presented with the aim to study the interplay between magnetic and structural transitions. The model consists of an orbitally doubly degenerate conduction ba…
Carrier induced ferromagnetism in concentrated and diluted local-moment systems
W. Nolting, T. Hickel, A. Ramakanth +2
For modeling the magnetic properties of concentrated and diluted magnetic semiconductors, we use the Kondo-lattice model. The magnetic phase diagram is derived by inspecting the st…
Self-energy approach to the correlated Kondo-lattice model
W. Nolting, G. G. Reddy, A. Ramakanth +2
We develop an interpolating self-energy approach to the correlated Kondo-lattice model. The correlation of the band electrons is taken into account by a Hubbard interaction. The me…
Low density approach to the Kondo-lattice model
W. Nolting, G. G. Reddy, A. Ramakanth +1
We propose a new approach to the (ferromagnetic) Kondo-lattice model in the low density region, where the model is thought to give a reasonable frame work for manganites with perov…