31 citations · 239 across the 41 of their papers we have counts for
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Ferromagnetic transition in a double-exchange model
Eugene Kogan, Mark Auslender, Eran Dgani
We calculate the temperature of a ferromagnetic transition in a double-exchange model with classical core spins for arbitrary relation between Hund exchange coupling and electron b…
The Shortest Path Across the Mesoscopic System
Liqun He, Eugene Kogan, Dawei Luo
We study distribution functions (DF) of mesoscopic hopping conductance numerically by searching for the shortest path. We have found that the distributions obtained by choosing ran…
Ground state of a double-exchange system containing impurities: bounds of ferromagnetism
Eugene Kogan, Mark Auslender, Eran Dgani
We study the boundary between ferromagnetic and non-ferromagnetic ground state of a double-exchange system with quenched disorder for arbitrary relation between Hund exchange coupl…
From the double-exchange Hamiltonian to the model: Classical spins
Eugene Kogan, Mark Auslender
From the double-exchange Hamiltonian with classical localized spins in the limit of large but finit Hund exchange coupling we obtain the model (with classical localized spins…