Nature Communications (May 2021)
Graphene overcoats for ultra-high storage density magnetic media
- N. Dwivedi,
- A. K. Ott,
- K. Sasikumar,
- C. Dou,
- R. J. Yeo,
- B. Narayanan,
- U. Sassi,
- D. De Fazio,
- G. Soavi,
- T. Dutta,
- O. Balci,
- S. Shinde,
- J. Zhang,
- A. K. Katiyar,
- P. S. Keatley,
- A. K. Srivastava,
- S. K. R. S. Sankaranarayanan,
- A. C. Ferrari,
- C. S. Bhatia
Affiliations
- N. Dwivedi
- CSIR-Advanced Materials and Processes Research Institute
- A. K. Ott
- Cambridge Graphene Centre, University of Cambridge
- K. Sasikumar
- Center for Nanoscale Materials, Argonne National Laboratory
- C. Dou
- Cambridge Graphene Centre, University of Cambridge
- R. J. Yeo
- Department of Electrical and Computer Engineering, National University of Singapore
- B. Narayanan
- Center for Nanoscale Materials, Argonne National Laboratory
- U. Sassi
- Cambridge Graphene Centre, University of Cambridge
- D. De Fazio
- Cambridge Graphene Centre, University of Cambridge
- G. Soavi
- Cambridge Graphene Centre, University of Cambridge
- T. Dutta
- Department of Electrical and Computer Engineering, National University of Singapore
- O. Balci
- Cambridge Graphene Centre, University of Cambridge
- S. Shinde
- Cambridge Graphene Centre, University of Cambridge
- J. Zhang
- Cambridge Graphene Centre, University of Cambridge
- A. K. Katiyar
- Cambridge Graphene Centre, University of Cambridge
- P. S. Keatley
- Department of Physics and Astronomy, University of Exeter
- A. K. Srivastava
- CSIR-Advanced Materials and Processes Research Institute
- S. K. R. S. Sankaranarayanan
- Center for Nanoscale Materials, Argonne National Laboratory
- A. C. Ferrari
- Cambridge Graphene Centre, University of Cambridge
- C. S. Bhatia
- Department of Electrical and Computer Engineering, National University of Singapore
- DOI
- https://doi.org/10.1038/s41467-021-22687-y
- Journal volume & issue
-
Vol. 12,
no. 1
pp. 1 – 13
Abstract
The main limitation to the areal storage density of hard disk drives (HDDs) is the thickness of carbon overcoats protecting the disk media. Here, <2-nm-thick graphene overcoats with improved corrosion, wear and irradiation resistance are shown to meet the requirements for the realization of 4–10 Tb/in2 HDDs with heat assisted magnetic recording.
