Tailoring the physical properties of thin nanohole arrays grown on flat anodic aluminum oxide templates

• Type: Article in International Scientific Journal
• Date: 2012

Authors

leitao, d. c. (Author) Other; ventura, j. (Author) FCUP; sousa, c. t. (Author) Other; teixeira, j. m. (Author) FCUP; sousa, j. b. (Author) Other; jaafar, m. (Author) Other; asenjo, a. (Author) Other; vazquez, m. (Author) Other; de teresa, j. m. (Author) Other; araujo, j. p. (Author) FCUP

Journal

Title: Nanotechnology

Vol. 23

Final page: 425701

ISSN: 0957-4484

Publisher: Institute of Physics Publishing

Indexing

ISI Web of Knowledge - 22 Citations

Scopus - 22 Citations

Other information

Authenticus ID: P-002-4BT

DOI: 10.1088/0957-4484/23/42/425701

Abstract (EN): The introduction of voids in a magnetic thin-film alters the stray field distribution and enables the tailoring of the corresponding physical properties. Here we present a detailed study on thin magnetic nanohole arrays (NhAs) grown on top of hexagonally-ordered anodic aluminum oxide (AAO) substrates. We address the effect of AAO topography on the corresponding electrical and magneto-transport properties. Optimization of the AAO topography led to NhAs with improved resistance and magnetoresistance responses, while retaining their most important feature of enhanced coercivity. This opens new pathways for the growth of more complex structures on AAO substrates, a crucial aspect for their technological viability.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 6