Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 6 of 6 for “"Optischer Speicher"”.
-
Rekristallisationskinetik von Phasenwechselmedien
Phase change media are tellurium based covalently bonded alloys which exist in a meta-stable amorphous phase at room temperature. Contrary to silicon based semiconductors these materials exhibit a large property contrast between the amorphous and crystalline phase. This is employed for optical and …
-
Phase change optical recording - preparation and X-ray characterization of GeSbTe and AgInSbTe films
The rapidly increasing net amount of digital information requires higher data- storage capacities and transfer rates. As a consequence, there is a need for a continuous improvement of the media concept and design. Phase change recording technology offers attractive features for erasable data …
-
Application of p electron theory to predict new materials for rewritable optical recording
Phase change recording is based upon the reversible phase transformation of a chalcogenide Te alloy between the crystalline and amorphous states using a focused laser. The formation of the micron-sized bit of information is distinguished from the difference in the optical properties of the two …
-
Combinatorial material synthesis applied to Ge-Sb-Te based phase change materials
The rapidly increasing net amount of digital information requires higher data- storage capacities and transfer rates. Consequently, there is a need for a continuous improvement of the media concept and design. Phase change recording technology offers attractive features for erasable data storage …
-
Strukturelle und kinetische Aspekte der kombinatorischen Materialsynthese am Beispiel der Phasenwechselmedien
Nowadays different competing techniques for reversible storage of huge amounts of data are used. One approach that has found extensive application is phase change recording, whereby data are encoded by using amorphous or crystalline states. Consequently the reading, writing and erasure of …
-
Kombinatorische PVD-Synthese und Strukturuntersuchungen der Ge-Sb-Te-Schichten
In this work a mapping of the structure and structural change of metastable and stable phases of the ternary Ge-Sb-Te system was realized in a wide composition range including the quasi binary line GeTe-Sb2Te3. Therefore homogeneous films and films with a compositional gradient were deposited using …