geoscience.net logo
+ Resolve Article
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter

+ Translate
+ Subscribe to Site Feed
GeoScience Most Shared ContentMost Shared Content

Crystallization behavior of Ge-doped eutectic Sb70Te30 films in optical disks


, : Crystallization behavior of Ge-doped eutectic Sb70Te30 films in optical disks. Applied Optics 41(29): 6220-6229

We report laser-induced crystallization behavior of binary Sb-Te and ternary Ge-doped eutectic Sb70Te30 thin film samples in a typical quadrilayer stack as used in phase-change optical disk data storage. Several experiments have been conducted on a two-laser static tester in which one laser operating in pulse mode writes crystalline marks on amorphous film or amorphous marks on crystalline film, while the second laser operating at low-power cw mode simultaneously monitors the progress of the crystalline or amorphous mark formation in real time in terms of the reflectivity variation. The results of this study show that the crystallization kinetics of this class of film is strongly growth dominant, which is significantly different from the crystallization kinetics of stochiometric Ge-Sb-Te compositions. In Sb-Te and Ge-doped eutectic Sb70Te30 thin-film samples, the crystallization behavior of the two forms of amorphous states, namely, as-deposited amorphous state and melt-quenched amorphous state, remains approximately same. We have also presented experiments showing the effect of the variation of the Sb/Te ratio and Ge doping on the crystallization behavior of these films.

US$29.90

PMID: 12389992


Other references

Kawada, T., 2008: Agreement rates for sleep/wake judgments obtained via accelerometer and sleep diary: a comparison. Agreement rates for waking and sleeping obtained via sleep diary and accelerometer were evaluated, to compare the two methods. Sleep/wake data for consecutive days and nights were surveyed in 119 healthy university students. Accelerometer sleep/wa...

Kaunitz, H.; Johnson, R.E.len, 1964: Nutritional effects of dihydroxystearic acid in rats. Two matching groups of weanling male albino rats were fed a purified diet containing 5% dihydroxystearic acid. All animals survived until they were killed; the first group was sacrificed at age 150 days and the second at 305 days. Fecal fat analys...

Sohounhloue, K.D.; Dangou, J.; Djossou, L.; Akoegninou, A.; Adjobo, R.; Garneau, F.X.; Gagnon, H.; Jean, F.I., 2002: Chemical composition of the leaf and flower oils of Aeollanthus pubescens Benth. from Benin. The essential oils obtained by hydrodistillation of the leaves and flowers of Aeollanthus pubescens Benth. were analyzed by GC and GC/MS. The leaf oil contained thymol (48.4%), thymol acetate (24.0%), p-cymene (5.3%) and gamma-terpinene (3.7%) as...

Friedman, E.H., 1993: Neurobiology of techno-stress. Journal of Occupational Medicine. 35(3): 315-315

Avellino, A.M.; Dailey, A.; Hart, D.; Gross, M.; Andrus, K.; Kliot, M., 1994: Expression of cell adhesion molecules and macrophage recruitment during peripheral nerve Wallerian degeneration. Society for Neuroscience Abstracts 20(1-2): 475

Charpin, J.; Dry, J.; Michel, F.B., 1985: Desensitization of allergic diseases: new allergens, increased vigilance. Presse Medicale 14(33): 1754-1754

Namikawa, T.; Kitagawa, H.; Iwabu, J.; Okabayashi, T.; Kobayashi, M.; Hanazaki, K., 2011: Tumors arising at previous anastomotic site may have poor prognosis in patients with gastric stump cancer following gastrectomy. We analyzed the clinicopathological characteristics and outcomes of patients with gastric stump cancer (GSC) to identify important prognostic factors. We retrospectively reviewed clinical reports of 34 patients with GSC treated at Kochi Medical Sc...

Schmauss, A.K.; Weinberger, I.; Poley, F., 1970: Diabetic metabolic disorders in patients with cholelithiasis. Munchener Medizinische Wochenschrift 112(27): 1297-1302

Starick, E., 1999: Detection of equine arteritis virus (EAV) in stallions--a contribution to the improvement of EAV diagnosis. Serum samples from 72 stallions were examined for the occurrence of antibodies against equine arteritis virus, of which 41 animals (57%) were found to be positive. 32 of the seropositive stallions were then screened for persistent EAV infection, b...

Chuang, Y-Yu.; Tran, N.L.; Rusk, N.; Nakada, M.; Berens, M.E.; Symons, M., 2004: Role of synaptojanin 2 in glioma cell migration and invasion. The small GTPase Rac1 is thought to play an important role in cell migration and invasion. We have previously identified synaptojanin 2, a phosphoinositide phosphatase, as an effector of Rac1. Here, we show that small interfering RNA-mediated depl...