DOI: 10.1143/jjap.40.5321. Performance of Ge–Sb–Bi–Te–B Recording Media for Phase-Change Optical Disks

Performance of Ge–Sb–Bi–Te–B Recording Media for Phase-Change Optical Disks

10.1143/jjap.40.5321

Crossref journal-article

IOP Publishing

Japanese Journal of Applied Physics (266)

Abstract

We investigated the physical properties of GeSbBiTeB materials and examined the feasibility for phase change recording. The studied compositions were Ge4Sb0.5Bi0.5Te5 and Ge2Sb1.5Bi0.5Te5 with B doping. The coexistence of Bi and B atoms into both Ge4SbTe5 and Ge2Sb2Te5 lattice maintains single fcc structure without phase separation. The Bi substitution shows benefits in decreasing crystallization temperature and activation energy, however the reflectivity is slightly reduced. [rf3] With small amount addition of boron about 1 at.%, the reflectivity can be increased. [rf2] Conventional 4-layer structure of digital versatile disk-random access memory (DVD-RAM) 2.6 GB format was used to prepare the disks for dynamic characterization and overwrite cyclability evaluations. The disk with Ge4Sb0.5Bi0.5Te5(B) recording layer shows large noise fluctuation and low overwrite erase ratio, suggesting that the crystallization speed is still insufficient. While the disk with Ge2Sb1.5Bi0.5Te5(B) recording layer shows lower writing and erasing powers, stable noise level and high overwrite erase ratio, indicating the capability for DVD-RAM applications. The effect of B doping was verified to enhance the signal amplitude and modulation.

Bibliography

Lee, C.-M., Yen, W.-S., Liu, R.-H., & Chin, T.-S. (2001). Performance of GeâSbâBiâTeâB Recording Media for Phase-Change Optical Disks. Japanese Journal of Applied Physics, 40(9R), 5321.

Authors 4

Chain-Ming Lee (first)
Wen-Shin Yen (additional)
Ren-Haur Liu (additional)
Tsung-Shune Chin (additional)

References 6 Referenced 8

10.1143/JJAP.37.2104 / Jpn. J. Appl. Phys. (1998)
10.1143/JJAP.38.6379 / Jpn. J. Appl. Phys. (1999)
10.1143/JJAP.39S1.513 / Proc. 12th Int. Conf. Ternary and Multinary Compounds, Jpn. J. Appl. Phys. (2000)
10.1021/ac60131a045 / Anal. Chem. (1957)
10.1143/JJAP.37.2098 / Jpn. J. Appl. Phys. (1998)
10.1143/JJAP.38.1713 / Jpn. J. Appl. Phys. (1999)

Dates

Type	When
Created	22 years, 10 months ago (Oct. 1, 2002, 4:34 p.m.)
Deposited	2 years, 8 months ago (Dec. 19, 2022, 12:25 p.m.)
Indexed	6 months ago (Feb. 21, 2025, 5:32 a.m.)
Issued	23 years, 11 months ago (Sept. 1, 2001)
Published	23 years, 11 months ago (Sept. 1, 2001)
Published Print	23 years, 11 months ago (Sept. 1, 2001)

Funders 0

None

BibTeX

@article{Lee_2001, title={Performance of Ge–Sb–Bi–Te–B Recording Media for Phase-Change Optical Disks}, volume={40}, ISSN={1347-4065}, url={http://dx.doi.org/10.1143/jjap.40.5321}, DOI={10.1143/jjap.40.5321}, number={9R}, journal={Japanese Journal of Applied Physics}, publisher={IOP Publishing}, author={Lee, Chain-Ming and Yen, Wen-Shin and Liu, Ren-Haur and Chin, Tsung-Shune}, year={2001}, month=sep, pages={5321} }

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