Method of Simultaneous Generation of Local Electrtic and Magnetic Fields with Independently Controlled Amplitude and Frequency

Abstract

An experimental setup has been developed that allows generating local bipolar electric and magnetic fields in a superconducting sample to study its magnetic, electronic, and crystalline microstates in one cycle. It is shown that the application of a damped oscillating local magnetic field to a superconducting sample induces an exponentially damped travelling magnetic wave. With decreasing wavelength and increasing wave energy, as more of the oscillations of the mentioned local field incident on the sample and twins, the induced travelling wave covers more and more twin boundaries and interacts with the L, C, R loops formed on them. This, in turn, leads to a gradual increase in the magnetic flux density in the trap and the residual resonant frequency of the oscillating circuit.