Ultrahigh-density phase-change data storage without the use of heating
SCIE
SCOPUS
- Title
- Ultrahigh-density phase-change data storage without the use of heating
- Authors
- Jo, A; Joo, W; Jin, WH; Nam, H; Kim, JK
- Date Issued
- 2009-11
- Publisher
- NATURE PUBLISHING GROUP
- Abstract
- Non-volatile memories based on scanning probes offer very high data densities, but existing approaches require the probe to be heated, which increases the energy expenditure and complexity of fabrication(1-14). Here, we demonstrate the writing, reading and erasure of an ultrahigh-density array of nanoscopic indentations without heating either the scanning probe tip or the substrate. An atomic force microscope tip causes microphase transitions of the polystyrene-block-poly(n-pentyl methacrylate) of a block copolymer to occur at room temperature by application of pressure alone. We demonstrate a data storage density of 1 Tb in(-2), which is limited only by the size of the tip. This demonstration of a pressure-based phase-change memory at room temperature may expedite the development of next-generation ultra high-density data storage media.
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/35164
- DOI
- 10.1038/NNANO.2009.260
- ISSN
- 1748-3387
- Article Type
- Article
- Citation
- NATURE NANOTECHNOLOGY, vol. 4, no. 11, page. 727 - 731, 2009-11
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