Die Temperaturabhängigkeit der antiferro- magnetischen Kopplungsenergie in Chromoxid / The Dependency of the Antiferromagnetic Coupling Energy Upon Temperature in Chromium Oxide

Abstract

For Cr2O3 moderately doped with Ga2O3 it is shown by electronspin resonance that the energy of antiferromagnetic coupling increases by about 20% when the temperature is lowered to the Neel-point Tɴ. This result indicates the early start of far distance order when still local ordering is to be expected