The discovery of the superconductivity phenomenon and understanding of electromagnetic properties of high temperature superconducting (HTS) materials allow the optimization and creation of several applications, such as, electrical machines and drives, fault current applications, or superconducting magnetic energy storage, well described in the literature. Electromechanical conversion devices ba...

Motivated by a beautiful demonstration of the Faraday and the Lenz laws in which a small neodymium magnet falls slowly through a conducting nonferromagnetic tube, we consider the dynamics of a magnet falling coaxially through a superconducting pipe. Unlike the case of normal conducting pipes, in which the magnet quickly reaches the terminal velocity, inside a superconducting tube the magnet fal...

Magnetic excitations in high temperature superconductors have been intensively studied experimentally and theoretically for a number of years as they provide a direct and incisive probe of correlation effects in the cuprates. These efforts have been redoubled after the discovery of a sharp magnetic collective mode in YBa2Cu3O7 by inelastic neutron scattering [1–3]. This mode is strongly coupled...

Magnetic excitations in high temperature superconductors have been intensively studied experimentally and theoretically for a number of years as they provide a direct and incisive probe of correlation effects in the cuprates. These efforts have been redoubled after the discovery of a sharp magnetic collective mode in YBa2CusOr by inelastic neutron scattering [1-3]. This mode is strongly coupled...

We investigate low-temperature transport properties of thin TiN superconducting films in the vicinity of the disorder-driven superconductor-insulator transition. In a zero magnetic field, we find an extremely sharp separation between superconducting and insulating phases, evidencing a direct superconductor-insulator transition without an intermediate metallic phase. At moderate temperatures, in...