Magneto-optical recording medium and optical information recording and reading-out method

摘要

Disclosed herein is an optical recording or reading out method comprising recording or reading out an information on or from a magneto-optical recording medium comprising a substrate and at least a magneto-optical recording layer having a Curie temperature of not less than 220 DEG C and a reflective layer mainly composed of Ag and having a refractive index of not more than 0.5 at a wavelength of less than 600 nm, the magneto-optical recording layer and reflective layer being formed on the substrate in order, while using laser beam with a wavelength of less than 600 nm.