Embedded mask patterning: A nanopatterning process to fabricate FePt magnetic media

Hao Wang, Haibao Zhao, P. Quarterman, Jian Ping Wang

Research output: Contribution to journalArticlepeer-review

7 Scopus citations


A nanopatterning process, named as the embedded mask patterning, was proposed and experimentally demonstrated based on the FePt recording media. A granular mask layer was deposited on top of a FePt continuous film. The granular pattern of the mask was then transferred down to FePt layer using reactive ion etching. Since controlling magnetic properties is separated from controlling granular nanostructure, FePt grains can be reduced by optimizing the mask layer and patterning process only. This process is also potentially compatible to any state-of-art vacuum process for other electronic devices wafers and heterostructured nanoparticles manufacturing.

Original languageEnglish (US)
Article number052406
JournalApplied Physics Letters
Issue number5
StatePublished - Feb 4 2013

Bibliographical note

Funding Information:
Parts of this work were carried out in the Nanofabrication Center and Characterization Facility, University of Minnesota, a member of the NSF-funded Materials Research Facilities Network (www.mrfn.org) via the NSF MRSEC program under Award No. DMR-0819885.


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