This article is cited in 5 papers

Brief Communications

Magnetic anisotropy of multilayer [FePt]$_n$ structures

A. S. Kamzin^a, Fulin Wei^b, V. R. Ganeev^c, A. A. Valiullin^c, L. D. Zaripova<sup>c

a</sup> Ioffe Institute, St. Petersburg
^b Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education, Lanzhou University, 730000 Lanzhou, China
^c Kazan (Volga Region) Federal University

Abstract: The possibility of controlling the magnetic anisotropy of multilayer [Fe/Pt]$_n$ structures grown by magnetron sputtering of Fe and Pt plates by varying number $n$ of layers is studied. Mössbauer spectroscopy data and measured magnetic hysteresis loops demonstrate that the multilayer [Fe/Pt]$_n$ structures at $n$ = 16 have a predominantly perpendicular magnetic anisotropy. The results of X-ray photoelectron spectroscopy and micromagnetic simulation point to the presence of intermediate layers enriched in iron ions in the structures. The magnetic anisotropy perpendicular to the surface of the [Fe/Pt]$_n$ films at $n$ = 16 is found to be caused by the anisotropy of the intermediate layers.

Received: 10.06.2013

 English version: Technical Physics, 2014, 59:3, 452–455

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