The density of the transmission eigenvalues of Pb nano-contacts has been estimated recently in mechanically controllable break-junction experiments. Motivated by these experimental analyses, here we study the evolution of the density of the transmission eigenvalues with the disorder strength and...

Utilizing the state dependent projection technique, we derive a formula for intraband transition linewidths due to longitudinal optical phonon scattering for the electrons in a triangular potential well. We find for GaN that the absorption power is keenly affected by the screening in such a way...

We investigate finite temperature corrections to the Landauer formula due to electron–electron interaction within the quantum point contact. When the Fermi level is close to the barrier height, the conducting wavefunctions become peaked on the barrier, enhancing the electron–electron...

We consider a nano-system connected to measurement probes via non interacting leads. When the electrons interact inside the nano-system, the coefficient |t<Subscript>s</Subscript>(E<Subscript>F</Subscript>)|<Superscript>2</Supe rscript> describing its effective transmission at the Fermi energy E<Subscript>F</Subscript> ceases to be local. This effect of electron-electron interactions upon...</subscript><//supe></superscript></subscript></subscript>

A new method is suggested to investigate the mechanism of the anomalous Hall effect (AHE) in ferromagnetic metals. Using a double layer of a ferromagnet and a normal metal of increasing thickness one can manipulate the AHE in the ferromagnet without changing the ferromagnet's structure and...

A nano-system in which electrons interact and in contact with Fermi leads gives rise to an effective one-body scattering which depends on the presence of other scatterers in the attached leads. This non local effect is a pure many-body effect that one neglects when one takes non interacting...

High quality samples and absence of superconductivity down to 40 mK make of ZrB<Subscript>2</Subscript> the best normal state reference system for the superconducting isostructural MgB<Subscript>2</Subscript>. Actually, the question of pairing has to be focused on the electron-phonon interaction in the normal state. After presenting the...</subscript></subscript>

The spin Hall transport properties in a two-dimensional electron system with both Rashba spin-orbit coupling (SOC) and magnetic impurities are investigated. Electrons are scattered by impurities through an exchange interaction that leads to spin flip-flop processes and so changes the spin Hall...