Nanocluster deposition for high density magnetic recording tape media

Jiao Ming Qiu, Yun Hao Xu, Jack H. Judy, Jian Ping Wang

Research output: Contribution to journalArticlepeer-review

30 Scopus citations


A technique for the fabrication of ultra-high density magnetic recording tape media with no risk of heating polymer substrate is reported. In this approach magnetic nanoparticles were generated by combining gas-phase nanocluster deposition and on-line heating techniques and deposited onto polymer substrate. Magnetic properties of the nanoparticles were optimized during their flight in vacuum prior to deposition. This technique is materials independent and it can fabricate nanocomposite films with high coercivity and very small film thickness. The fabricated magnetic nanoparticles have a uniform size distribution [for CoPt, 8.4% (standard deviation)] and well-defined spherical shape.

Original languageEnglish (US)
Article number10P704
JournalJournal of Applied Physics
Issue number10
StatePublished - May 15 2005

Bibliographical note

Funding Information:
This work was partially supported by the Information Storage Industry Consortium (INSIC) Advanced Tape Recording Program and Heraeus Inc. The authors would like to thank Dr. Stuart Mckernan in the central characterization facility in the University of Minnesota for TEM characterization.


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