Structure of domain walls and spin wave spectrum in La2CuO4-type antiferromagnets in a magnetic field

Abstract The authors conducted an investigation into the changes in the structure of domain walls influenced by an external magnetic field in a La 2 CuO 4 -type antiferromagnet. It has been shown that a restructuring of some domain wall types is possible at certain values of magnetic field strength. A phase diagram for stability of various types of domain walls has been constructed. A spin wave spectrum in the presence of an external magnetic field has been obtained.