Work

Uniform Magnetic Properties for an Ultrahigh-Density Lattice of Noninteracting Co Nanostructures

Year: 2005

Type: article

Abstract: We report on the magnetic properties of two-dimensional Co nanoparticles arranged in macroscopically phase-coherent superlattices created by self-assembly on Au(788). Our particles have a density of 26 Tera/in2 (1 Tera=10(12)), are monodomain, and have uniaxial out-of-plane anisotropy. The distribution of the magnetic anisotropy energies has a half width at half maximum of 17%, a factor of 2 more narrow than the best results reported for superlattices of three-dimensional nanoparticles. Our data show the absence of magnetic interactions between the particles. Co/Au(788) thus constitutes an ideal model system to explore the ultimate density limit of magnetic recording.

Source: Physical Review Letters

DOI: 10.1103/physrevlett.95.157204

Authors: N. Weiss, T. Cren, M. Epple, S. Rusponi, G. Baudot, S. Rohart, A. Tejeda, V. Repain, S. Rousset, P. Ohresser, F. Scheurer, P. Bencok, H. Brune

Institutions: École Polytechnique Fédérale de Lausanne, Centre National de la Recherche Scientifique, Laboratoire Matériaux et Phénomènes Quantiques, Université Paris-Sud, Institut de Physique et Chimie des Matériaux de Strasbourg, European Synchrotron Radiation Facility

Language: English

Topic: Magnetic properties of thin films

Subfield: Condensed Matter Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: bronze

OpenAlex ID: W2052929964

FWCI: 9.414

Cites: 31

Cited by: 158

Related to: 10