Magnetic recording medium, recording method and magnetic storage apparatus

摘要

A magnetic recording medium is provided with first and second ferromagnetic layers which are exchange-coupled via a first nonmagnetic coupling layer and have mutually parallel magnetizations. The second ferromagnetic layer and a magnetic layer are exchange-coupled via a second nonmagnetic coupling layer and have magnetizations which are mutually antiparallel. The first and second ferromagnetic layers and the magnetic layer respectively have dynamic coercivities Hc 1' , Hc 2' and Hc 3' which satisfy a relationship Hc 1'< Hc 3'<= Hc 2' in a switching time region of a recording magnetic field.