Method for the reconfiguration of a vortex density in a rare earth manganate, a non-volatile impedance switch and use thereof

A method for reconfiguring a vortex density in a rare earth manganate comprising:

• applying a one-off voltage-time profile between a first and a second electrically conductive contact of the rare earth manganate attached to the rare earth manganate;
• allowing a cooling process so that the rare earth manganate goes through an ordering temperature in a region of an electric field established between the two electrically conductive contacts during and after application of the one-off voltage-time profile;
• and
• wherein the vortex density is thus influenced and set locally in the region of the electric field established between the two electrically conductive contacts, and a temperature gradient of either:
• (i) greater than 1 K/min, preferably greater than 10 K/min, more preferably greater than 100 K/min, is generated for reconfiguring the vortex density with a resulting impedance having a dominant inductive reactance, or (ii) less than 100 K/min, preferably less than 10 K/min, more preferably less than 1 K/min, is generated for reconfiguring the vortex density with a resulting impedance having a dominant capacitive reactance.