Magnetoresistance of rare-earth-substituted garnet ferrite films

Abstract

Thin epitaxial films of garnet ferrite were studied using impedance spectroscopy. The influence of the magnetic field on the transport characteristics was investigated on the basis of the current-voltage characteristic characteristics (I-V) measured without a field and in a magnetic field H = 12 kOe. An increase in resistance in bismuth ferrite garnet was detected in a magnetic field at a temperature above room temperature.