250 citations · 856 across the 22 of their papers we have counts for
5 papers · 1 filter
Barkhausen-type noise in the resistance of antiferromagnetic Cr thin films
L. Tosi, E. Osquiguil, E. E. Kaul +1
We present an experimental study of the changes generated on the electrical resistance of epitaxial Cr thin films by the transformation of quantized spin density wave domain…
Effects of spin density wave quantization on the electrical transport in epitaxial Cr thin films
E. Osquiguil, E. E. Kaul, L. Tosi +1
We present measurements of the electrical resistivity, , in epitaxial Cr films of different thicknesses grown on MgO (100) substrates, as a function of temperature, . The $ρ(…
Thermopower of an SU(4) Kondo resonance under an SU(2) symmetry-breaking field
P. Roura-Bas, L. Tosi, A. A. Aligia +1
We calculate the thermopower of a quantum dot described by two doublets hybridized with two degenerate bands of two conducting leads, conserving orbital (band) and spin quantum num…
Nonequilibrium conductance through a benzene molecule in the Kondo regime
L. Tosi, P. Roura-Bas, A. A. Aligia
Starting from exact eigenstates for a symmetric ring, we derive a low-energy effective generalized Anderson Hamiltonian which contains two spin doublets with opposite momenta and a…
Superconducting Quantum Point Contacts
L. Bretheau, Ç. Girit, L. Tosi +5
We review our experiments on the electronic transport properties of atomic contacts between metallic electrodes, in particular superconducting ones. Despite ignorance of the exact…