Ultra-high-density phase-change storage using AlNiGd metallic glass thin film as recording layer

Mei Ling Lee; K. Khine Win; Chee Lip Gan; Lu Ping Shi

doi:10.1016/j.intermet.2009.06.018

Ultra-high-density phase-change storage using AlNiGd metallic glass thin film as recording layer

Mei Ling Lee^*, K. Khine Win, Chee Lip Gan, Lu Ping Shi

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

6 Citations (Scopus)

Abstract

A nonchalcogenide inorganic blu-ray super-resolution near-field optical disk was successfully developed using an Al-based metallic glass as the recording layer. Data were recorded based on the large reflectivity change obtained during transformation from the amorphous state to the crystalline state upon laser irradiation. The optical and thermal properties of the Al₉₀Ni₃Gd₇ metallic glass thin film were studied. The crystallization and melting temperatures were higher and more thermally stable than that of conventionally used Ge₂Sb₂Te₅ chalcogenide phase-change recording material. Al₉₀Ni₃Gd₇ metallic glass also demonstrated fast phase-change response to blue laser. Dynamic recording performance of this new structure showed good carrier-to-noise ratio and readout stability.

Original language	English
Pages (from-to)	119-122
Number of pages	4
Journal	Intermetallics
Volume	18
Issue number	1
DOIs	https://doi.org/10.1016/j.intermet.2009.06.018
Publication status	Published - Jan 2010
Externally published	Yes

ASJC Scopus Subject Areas

General Chemistry
Mechanics of Materials
Mechanical Engineering
Metals and Alloys
Materials Chemistry

Keywords

B. Glasses, metallic
B. Thermal properties
C. Thin films
F. Non-destructive evaluation
G. Ambient-temperature uses

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10.1016/j.intermet.2009.06.018

Cite this

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title = "Ultra-high-density phase-change storage using AlNiGd metallic glass thin film as recording layer",

abstract = "A nonchalcogenide inorganic blu-ray super-resolution near-field optical disk was successfully developed using an Al-based metallic glass as the recording layer. Data were recorded based on the large reflectivity change obtained during transformation from the amorphous state to the crystalline state upon laser irradiation. The optical and thermal properties of the Al90Ni3Gd7 metallic glass thin film were studied. The crystallization and melting temperatures were higher and more thermally stable than that of conventionally used Ge2Sb2Te5 chalcogenide phase-change recording material. Al90Ni3Gd7 metallic glass also demonstrated fast phase-change response to blue laser. Dynamic recording performance of this new structure showed good carrier-to-noise ratio and readout stability.",

keywords = "B. Glasses, metallic, B. Thermal properties, C. Thin films, F. Non-destructive evaluation, G. Ambient-temperature uses",

author = "Lee, {Mei Ling} and Win, {K. Khine} and Gan, {Chee Lip} and Shi, {Lu Ping}",

year = "2010",

month = jan,

doi = "10.1016/j.intermet.2009.06.018",

language = "English",

volume = "18",

pages = "119--122",

journal = "Intermetallics",

issn = "0966-9795",

publisher = "Elsevier Limited",

number = "1",

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TY - JOUR

T1 - Ultra-high-density phase-change storage using AlNiGd metallic glass thin film as recording layer

AU - Lee, Mei Ling

AU - Win, K. Khine

AU - Gan, Chee Lip

AU - Shi, Lu Ping

PY - 2010/1

Y1 - 2010/1

N2 - A nonchalcogenide inorganic blu-ray super-resolution near-field optical disk was successfully developed using an Al-based metallic glass as the recording layer. Data were recorded based on the large reflectivity change obtained during transformation from the amorphous state to the crystalline state upon laser irradiation. The optical and thermal properties of the Al90Ni3Gd7 metallic glass thin film were studied. The crystallization and melting temperatures were higher and more thermally stable than that of conventionally used Ge2Sb2Te5 chalcogenide phase-change recording material. Al90Ni3Gd7 metallic glass also demonstrated fast phase-change response to blue laser. Dynamic recording performance of this new structure showed good carrier-to-noise ratio and readout stability.

AB - A nonchalcogenide inorganic blu-ray super-resolution near-field optical disk was successfully developed using an Al-based metallic glass as the recording layer. Data were recorded based on the large reflectivity change obtained during transformation from the amorphous state to the crystalline state upon laser irradiation. The optical and thermal properties of the Al90Ni3Gd7 metallic glass thin film were studied. The crystallization and melting temperatures were higher and more thermally stable than that of conventionally used Ge2Sb2Te5 chalcogenide phase-change recording material. Al90Ni3Gd7 metallic glass also demonstrated fast phase-change response to blue laser. Dynamic recording performance of this new structure showed good carrier-to-noise ratio and readout stability.

KW - B. Glasses, metallic

KW - B. Thermal properties

KW - C. Thin films

KW - F. Non-destructive evaluation

KW - G. Ambient-temperature uses

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DO - 10.1016/j.intermet.2009.06.018

M3 - Article

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SN - 0966-9795

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JO - Intermetallics

JF - Intermetallics

IS - 1

ER -

Ultra-high-density phase-change storage using AlNiGd metallic glass thin film as recording layer

Abstract

ASJC Scopus Subject Areas

Keywords

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