25 citations · 101 across the 38 of their papers we have counts for
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physics.class-ph2009
Coulomb interaction revised in the presence of material with negative permittivity
A. A. Rangelov, N. Karchev
Coulomb law is one of the fundamental laws in Physics. It describes the magnitude of the electrostatic force between two electric charges. Counterintuitively the repulsion force be…
cond-mat.str-el2009
Towards the theory of ferrimagnetism II
Naoum Karchev
The present paper is a sequel to the paper by Karchev (2008 J.Phys.:Condens.Matter {\bf 20} 325219). A two-sublattice ferrimagnet, with spin- operators at the su…
cond-mat.str-el2009★ 7 cited
Effect of Jahn-Teller coupling on Curie temperature in the Double Exchange Model
Vasil Michev, Naoum Karchev
We consider the two-band double exchange model for manganites with Jahn-Teller (JT) coupling and explore the suppression of the ferromagnetism because of the JT distortion. The loc…