Skip to main content
Article thumbnail
Location of Repository

Fabrication and thermal stability of arrays of Fe nanodots

By Kai Liu, Josep Nogués i Sanmiquel, C. Leighton, H. Masuda, K. Nishio, I. V. Roshchin, Ivan K. Schuller and American Physical Society

Abstract

This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics.We have fabricated arrays of 60-nm-size magnetic Fe nanodots over a 1-cm2 -size area using nanoporous alumina membranes as shadow masks. The size and size distribution of the nanodots correlate very well with that of the membrane pores. By placing an antiferromagnetic FeF2 layer underneath the Fe nanodots, an exchange anisotropy can be introduced into the Fe/FeF2 system. We have observed an increase in the magnetic hysteresis loop squareness in biased nanodots, suggesting that exchange bias may be used as a tunable source of anisotropy to stabilize the magnetization in such nanodots

Topics: Nanodots, Magnetic anisotropy, Nanofabrication, Antiferromagnetism, Exchange interactions, Magnetic hysteresis, Nanoporous materials, Thermal stability
Year: 2002
DOI identifier: 10.1063/1.1526458
OAI identifier: oai:ddd.uab.cat:116254

Suggested articles


To submit an update or takedown request for this paper, please submit an Update/Correction/Removal Request.