103 citations · 445 across the 12 of their papers we have counts for
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cond-mat.str-el2001
The Role of Electron-Hole Symmetry Breaking in the Kondo Problems
O. Ujsaghy, K. Vladar, G. Zarand +1
In studying the different Kondo problems it is generally assumed that breaking the electron-hole symmetry does not affect the perturbative infrared divergencies. It is shown here t…
cond-mat.str-el2001
Magnetic Semiconductors are Frustrated Ferromagnets
Gergely Zarand, Boldizsar Janko
Starting from microscopic and symmetry considerations, we derive the Hamiltonian describing the exchange interaction between the localized Mn spins and the valence band holes in $G…
cond-mat.str-el2001
Dynamics of a tunneling magnetic impurity: Kondo effect induced incoherence
L. Borda, G. Zarand
We study how the formation of the Kondo compensation cloud influences the dynamical properties of a magnetic impurity that tunnels between two positions in a metal. The Kondo effec…