Nanopatterning of magnetic domains: Fe coverage of self-assembled alumina nanostructure

Journal Article · Wed Aug 19 00:00:00 EDT 2015 · Applied Physics Express

DOI:https://doi.org/10.7567/APEX.8.093002· OSTI ID:1279432

Wu, Qibin ^[1]; Wang, Bo -Yao ^[2]; Lin, Wen -Chin ^[3]; Gai, Zheng ^[4]; Lin, Minn -Tsong ^[5]; Wu, Chii -Bin ^[6]

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1. National Taiwan University
2. National Changhua Univ. of Education, Changhua (Taiwan)
3. National Taiwan Normal Univ., Taipei (Taiwan)
4. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
5. National Taiwan Univ., Taipei (Taiwan); Academia Sinica, Taipei (Taiwan). Institute of Atomic and Molecular Sciences
6. Chung Yuan Christian Univ., Chungli (Taiwan)

Nanosized ultrathin magnetic films were prepared by controlling the deposition of Fe onto an oxidized NiAl(001) surface with an alumina nanostructure on it. Because the ultrathin ferromagnetic Fe films on the bare NiAl(001) surface are separated by paramagnetic Fe nanoparticles on the alumina stripes, as determined by scanning electron microscopy with spin analysis, they form rectangular domains with sizes ranging from tens of nanometer to larger than a micrometer. Furthermore, magnetic domain patterning can thus be achieved by controlling the Fe coverage and nanostructured template.

• Research Organization: Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
• Sponsoring Organization: USDOE
• Grant/Contract Number: AC05-00OR22725
• OSTI ID: 1279432
• Journal Information: Applied Physics Express, Vol. 8, Issue 9; ISSN 1882-0778
• Publisher: Japan Society of Applied Physics
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE