31 citations · 239 across the 41 of their papers we have counts for
9 papers · 1 filter
Itinerant Ferromagnetism in the electronic localization limit
N. Kurzweil, E. Kogan, A. Frydman
We present Hall effect, , and magnetoresistance, , measurements of ultrathin films of Ni, Co and Fe with thicknesses varying between 0.2-8 nm and resistances…
PM-FM transition in a DE model
E. Kogan, M. Auslender
We study paramagnetic - ferromagnetic transition due to exchange interaction between classical localized magnetic moments and conduction electrons. By solving the Dynamical Mean Fi…
Probing of the Kondo peak by the impurity charge measurement
M. I. Katsnelson, E. Kogan
We consider the real-time dynamics of the Kondo system after the local probe of the charge state of the magnetic impurity. Using the exactly solvable infinite-degeneracy Anderson m…
Density of states of the interacting two-dimensional electron gas
E. Kogan, B. Rosenstein
We study the influence of electron-electron interactions on the density of states (DOS) of clean 2D electron gas. We confirm the linear cusp in the DOS around the Fermi level, whic…
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…
Ferromagnetic transition in a double-exchange system with alloy disorder
Mark Auslender, Eugene Kogan
We study ferromagnetic transition in three-dimensional double-exchange model containing impurities. The influence of both spin fluctuations and impurity potential on conduction ele…
Ferromagnetic transition in a double-exchange system containing impurities
Mark Auslender, Eugene Kogan
We study ferromagnetic transition in three-dimensional double-exchange model containing impurities. The influence of both spin fluctuations and impurity potential on conduction ele…
Localization and Dephasing Driven by Magnetic Fluctuations in Low Carrier Density Colossal Magnetoresistance Materials
Eugene Kogan, Mark Auslender, Moshe Kaveh
Localization and dephasing of conduction electrons in a low carrier density ferromagnet due to scattering on magnetic fluctuations is considered. We claim the existence of the "mob…