Phase-Change Optical Disk Having a Nitride Interface Layer

Yamada, Noboru; Otoba, Mayumi; Kawahara, Katsumi; Miyagawa, Naoyasu; Ohta, Hiroyuki; Akahira, Nobuo; Matsunaga, Toshiyuki

doi:10.1143/jjap.37.2104

Public

Phase-Change Optical Disk Having a Nitride Interface Layer

Published in Japanese Journal of Applied Physics • Apr 1, 1998

Authors:

Noboru Yamada

Mayumi Otoba

Katsumi Kawahara

Abstract

A thin nitride layer formed at the interface of a Ge–Sb–Te recording layer and a ZnS–SiO 2 protective layer successfully suppresses the phenomenon that reflectivity or signal amplitude becomes markedly small due to repeated overwrites. Based on secondary ion mass spectrometry (SIMS) observations, th...

Subject

Layer (electronics)

Materials science

Nitride

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