Thermomechanical High-Density Data Storage in a Metallic Material Via the Shape-Memory Effect

By exploiting the shape‐memory effect in NiTi, it is demonstrated for the first time that a metallic material can be used for rewriteable, thermomechanical data storage. Data are written as surface indentations by a nanoscale mechanical probe, read by a transducer, and erased by heating. A data arra...

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Bibliographic Details
Published inAdvanced materials (Weinheim) Vol. 17; no. 9; pp. 1123 - 1127
Main Authors Shaw, G. A., Trethewey, J. S., Johnson, A. D., Drugan, W. J., Crone, W. C.
Format Journal Article
LanguageEnglish
Published Weinheim WILEY-VCH Verlag 02.05.2005
WILEY‐VCH Verlag
Subjects
Data storage
Shape-memory alloys
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Summary:By exploiting the shape‐memory effect in NiTi, it is demonstrated for the first time that a metallic material can be used for rewriteable, thermomechanical data storage. Data are written as surface indentations by a nanoscale mechanical probe, read by a transducer, and erased by heating. A data array with a storage density of 10 Gbit in.–2 (∼ 6500 nm2 bit –1) is demonstrated (see Figure) but much higher storage densities are attainable with improved film planarity.
Bibliography:ark:/67375/WNG-PBG66ZGK-W
ArticleID:ADMA200400942
istex:695EDAFC78E1B08BC9676248837AB6D82B25E99A
This work was supported by the Department of Energy (award #DE-FC36-01G011055). The authors also express their appreciation to Arthur B. Ellis and Donald S. Stone for productive conversations.
This work was supported by the Department of Energy (award #DE‐FC36–01G011055). The authors also express their appreciation to Arthur B. Ellis and Donald S. Stone for productive conversations.
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ISSN:0935-9648
1521-4095
DOI:10.1002/adma.200400942