Recording Characteristics and Crystallization Behavior of InGeSbSnTe Phase Change Thin Films

Sin Liang Ou, Kuo Sheng Kao, Chao Te Lee, Tsung-Shine Ko, Han Feng Chang, Huan Hsien Yeh

Research output: Contribution to journalArticle

Abstract

The In10GexSb52-xSn23Te15 films (x = 2, 5, 7, and 9) were grown on silicon wafers, glass, and polycarbonate substrates at room temperature by dc magnetron sputtering. The thickness of In10GexSb52-xSn23Te15 films is fixed at 20 nm. The ZnS-SiO2 films deposited by RF magnetron sputtering were employed as the protective layers. We have studied the crystallization behavior and optical property of the InGeSbSnTe phase change films. In addition, the recording characteristics for blue laser recording media were also investigated. It is found that the crystallization temperature of In10GexSb52-xSn23Te15 films was increased with increasing the Ge content. The optical contrasts of In10GexSb52-xSn23Te15 films with x = 2-9 are all higher than 30% at a wavelength of 405 nm. After ten direct overwriting cycles, the optimum jitter value of InGeSbSnTe optical disk with 4x recording speed is lower than 7%, indicating that the films have high potential in blue laser rewritable media.

Original languageEnglish
Article number6851258
JournalIEEE Transactions on Magnetics
Volume50
Issue number7
DOIs
Publication statusPublished - 2014 Jul 1

Fingerprint

Crystallization
Thin films
polycarbonate
Magnetron sputtering
Laser recording
Polycarbonates
Jitter
Silicon wafers
Optical properties
Glass
Wavelength
Temperature
Lasers
Substrates

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering

Cite this

Ou, Sin Liang ; Kao, Kuo Sheng ; Lee, Chao Te ; Ko, Tsung-Shine ; Chang, Han Feng ; Yeh, Huan Hsien. / Recording Characteristics and Crystallization Behavior of InGeSbSnTe Phase Change Thin Films. In: IEEE Transactions on Magnetics. 2014 ; Vol. 50, No. 7.
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Recording Characteristics and Crystallization Behavior of InGeSbSnTe Phase Change Thin Films. / Ou, Sin Liang; Kao, Kuo Sheng; Lee, Chao Te; Ko, Tsung-Shine; Chang, Han Feng; Yeh, Huan Hsien.

In: IEEE Transactions on Magnetics, Vol. 50, No. 7, 6851258, 01.07.2014.

Research output: Contribution to journalArticle

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