3 papers
cond-mat.mtrl-sci2004
Comment on "Memory Effects in an Interacting Magnetic Nanoparticle System" by Sun et. al, prl, 91, 167206 (2003)
S. Chakravarty, A. Frydman, M. Bandyopadhyay +2
In this Comment we report a phenomenon identical to that observed in ({Y. Sun, M. B. Salamon, K. Garnier and R. S. Averback, Phys. Rev. Lett. 91, 167206 (2003)}) for systems of NiF…
cond-mat.mes-hall2001
The superconductor insulator transition in systems of ultrasmall grains
A. Frydman
We present transport measurements on quench condensed granular Pb films in which the grains are 40-80Åin diameter. These films show a cross over from an insulator to a superconduct…
cond-mat1998
Excess conductance in normal-metal/superconductor junctions
A. Vaknin, A. Frydman, Z. Ovadyahu
The current-voltage characteristics of Au/InOx/Pb tunnel junctions exhibit peculiar zero-bias anomalies. At low temperature the zero-bias resistance attains values that are smaller…