Research Data Leeds Repository

Nano- and micro-patterning biotemplated magnetic CoPt arrays.

Citation

Galloway, Johanna M. and Bird, Scott and Talbot, Jennifer and Shepley, Philippa M. and Bradley, Ruth and Critchley, Kevin (2016) Nano- and micro-patterning biotemplated magnetic CoPt arrays. University of Leeds. [Dataset] https://doi.org/10.5518/43¹

Dataset description

Patterned thin-films of magnetic nanoparticles (MNPs) can be used to make high‑density data storage devices. High coercivity MNPs (e.g. L10 CoPt) are nano-patterned to create this bit-patterned media (BPM). This increases storage capacity by reducing bit size, which is highly desirable in developing smaller recording media for consumer devices . Conventional manufacture of BPM is not environmentally friendly as it uses high temperatures (500˚C) and high vacuum, which requires specialised equipment. To tackle these issues, we have taken inspiration from nature to create patterns of CoPt using a biotemplating peptide under mild conditions. Nano-patterning via interference lithography (IL) and micro-patterning using micro-contact printing (μCP) were used to create a peptide resistant mask onto a gold surface under ambient conditions. We redesigned a biotemplating peptide to self-assemble onto gold surfaces (cgsgktheihspllhk), and mineralised the patterns at 18˚C in water. Ferromagnetic CoPt is biotemplated by the immobilised peptides, and the patterned MNPs maintain stable magnetic domains. This bioinspired study offers an ecological route towards developing biotemplated.

Additional information:

Dataset associated with J. M. Galloway, S. M. Bird, J. E. Talbot, P. M. Shepley, R. C. Bradley, O. El-Zubir, D. A. Allwood, G. J. Leggett, J. J. Miles, S. S. Staniland and K. Critchley (2016) Nano- and micro-patterning biotemplated magnetic CoPt arrays. Nanoscale, 8, 11738-11747. DOI: http://dx.doi.org/10.1039/C6NR03330J

Keywords:

Bit patterned media, nanoscale

Subjects:

F000 - Physical sciences > F300 - Physics²

Divisions:

Faculty of Engineering and Physical Sciences > Centre for Molecular Nanoscience (CMNS)³
Faculty of Engineering and Physical Sciences > School of Physics and Astronomy⁴

Related resources:

Location	Type
https://doi.org/10.1039/C6NR03330J⁵	Publication
https://eprints.whiterose.ac.uk/100524/⁶	Publication

License:

Creative Commons Attribution 4.0 International (CC BY 4.0)

Date deposited:

07 Jun 2016 07:42

URI:

https://archive.researchdata.leeds.ac.uk/id/eprint/49⁷

Additional details

Creators or authors:

Creators	ORCID	Primary affiliation	Primary affiliation ID	Primary affiliation ID type	Secondary affiliation	Secondary affiliation ID	Secondary affiliation ID type
Galloway, Johanna M.	https://orcid.org/0000-0003-3998-0870⁸	University of Leeds	https://ror.org/024mrxd33	ror	University of Bristol	https://ror.org/0524sp257	ror
Bird, Scott		University of Sheffield	https://ror.org/05krs5044	ror
Talbot, Jennifer	https://orcid.org/0000-0002-4180-8060⁹	University of Manchester	https://ror.org/027m9bs27	ror
Shepley, Philippa M.	https://orcid.org/0000-0003-1240-593X¹⁰	University of Leeds	https://ror.org/024mrxd33	ror
Bradley, Ruth		University of Sheffield	https://ror.org/05krs5044	ror
Critchley, Kevin	https://orcid.org/0000-0002-0112-8626¹¹	University of Leeds	https://ror.org/024mrxd33	ror

Type of data:

Dataset

Contributors:

Contribution	Name	ORCID	Primary affiliation	Primary affiliation ID	Primary affiliation ID type
Researcher	El-Zubir, Osama	https://orcid.org/0000-0002-2859-2509¹²	University of Sheffield	https://ror.org/05krs5044	ror
Researcher	Allwood, Dan	https://orcid.org/0000-0002-3582-4355¹³	University of Sheffield	https://ror.org/05krs5044	ror
Researcher	Leggett, Graham J.	https://orcid.org/0000-0002-4315-9076¹⁴	University of Sheffield	https://ror.org/05krs5044	ror
Researcher	Miles, Jim J.	https://orcid.org/0000-0003-1281-8697¹⁵	University of Manchester	https://ror.org/027m9bs27	ror
Researcher	Staniland, Sarah S.	https://orcid.org/0000-0001-8995-7172¹⁶	University of Sheffield	https://ror.org/05krs5044	ror