OPTICAL INFORMATION RECORDING MEDIUM, ITS MANUFACTURING METHOD, OPTICAL INFORMATION RECORDING/REPRODUCING METHOD AND OPTICAL INFORMATION RECORDER/REPRODUCER

摘要

An optical information recording medium provided with an information layer comprising at least Te, O and M atoms (wherein the M is at least one element selected from a metallic element, a metalloid element or a semiconductor element, most preferably Pd). The information layer comprises the O atoms in 40 atom%-60 atom%, the M atoms in 2 atom%-25 atom% and the Te atoms in 15 atom%-58 atom%, thus obtaining a preferable recording property having a high C/N ratio and a small jitter in a wide power margin in recording and reproducing information having a small b/d ratio (a ratio of a recording bit length b for a spot diameter d). <IMAGE>