Magnetization dynamics of mixed Co-Au chains on Cu(110) substrate: Combined ab initio and kinetic Monte Carlo study

doi:10.1088/1674-1056/24/9/097302

Abstract We present an investigation of the one-dimensional ferromagnetism in Au-Co nanowires deposited on the Cu(110) surface. By using the density functional theory, the influence of the nonmagnetic copper substrate Cu(110) on the magnetic properties of the bimetallic Au-Co nanowires is studied. The results show the emergence of magnetic anisotropy in the supported Au-Co nanowires. The magnetic anisotropy energy has the same order of magnitude as the exchange interaction energy between Co atoms in the wire. Our electronic structure calculation reveals the emergence of new hybridized bands between Au and Co atoms and surface Cu atoms. The Curie temperature of the Au-Co wires is calculated by means of kinetic Monte Carlo simulation. The strong size effect of the Curie temperature is demonstrated.

Keywords: magnetic properties nanowires density functional theory kinetic Monte Carlo simulation

Received: 12 January 2015
Revised: 25 March 2015
Accepted manuscript online:

PACS:	73.22.-f	(Electronic structure of nanoscale materials and related systems)
	75.75.-c	(Magnetic properties of nanostructures)
	75.40.Mg	(Numerical simulation studies)

Fund: Project supported by the Russian Foundation of Basic Researches.

Corresponding Authors: S. V. Kolesnikov
E-mail: kolesnikov@physics.msu.ru

Cite this article:

K. M. Tsysar, S. V. Kolesnikov, A. M. Saletsky Magnetization dynamics of mixed Co-Au chains on Cu(110) substrate: Combined ab initio and kinetic Monte Carlo study 2015 Chin. Phys. B 24 097302

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Magnetization dynamics of mixed Co-Au chains on Cu(110) substrate: Combined ab initio and kinetic Monte Carlo study

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