Ultra-high-density phase-change storage and memory
| Autor: | Martin P. O'Boyle, Yves Martin, Hendrik F. Hamann, Michael J. Rooks, H. Kumar Wickramasinghe |
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| Rok vydání: | 2006 |
| Předmět: |
Materials science
business.industry Orders of magnitude (temperature) Mechanical Engineering Electrical engineering Phase (waves) Nanotechnology General Chemistry Optical storage Condensed Matter Physics Smart material Mechanics of Materials Computer data storage Thermal General Materials Science Molecular memory business Computer memory |
| Zdroj: | Nature materials. 5(5) |
| ISSN: | 1476-1122 |
| Popis: | Phase-change storage is widely used in optical information technologies (DVD, CD-ROM and so on), and recently it has also been considered for non-volatile memory applications. This work reports advances in thermal data recording of phase-change materials. Specifically, we show erasable thermal phase-change recording at a storage density of 3.3 Tb inch(-2), which is three orders of magnitude denser than that currently achievable with commercial optical storage technologies. We demonstrate the concept of a thin-film nanoheater to realize ultra-small heat spots with dimensions of less than 50 nm. Finally, we show in a proof-of-concept demonstration that an individual thin-film heater can write, erase and read the phase of these storage materials at competitive speeds. This work provides important stepping stones for a very-high-density storage or memory technology based on phase-change materials. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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