R. S. Iskhakov, V. A. Seredkin, S. V. Stolyar, G. I. Frolov, V. Yu. Yakovchuk, “Effects of exchange interaction in bilayer Dy$_x$Co$_{1-x}$/NiFe films in the vicinity of compensation compositions of amorphous DyCo alloys”, Pis'ma v Zh. Èksper. Teoret. Fiz., 2004, Volume 80, Issue 10,Pages 743

This article is cited in 8 papers

CONDENSED MATTER

Effects of exchange interaction in bilayer Dy$_x$Co$_{1-x}$/NiFe films in the vicinity of compensation compositions of amorphous DyCo alloys

R. S. Iskhakov^a, V. A. Seredkin^a, S. V. Stolyar^ab, G. I. Frolov^a, V. Yu. Yakovchuk^a

^a L. V. Kirensky Institute of Physics, Siberian Branch of the Russian Academy of Sciences
^b Krasnoyarsk State University

Abstract: The displacement field of the hysteresis loop due to exchange anisotropy in planar DyCo/NiFe systems is studied experimentally as a function of the concentration of the rare-earth element. The bilayer DyCo/NiFe film system is characterized by an orthogonal arrangement of the effective magnetizations of separate layers under the condition that the amorphous DyCo layer is prepared in the region of magnetic compensation. An analysis of the dependence of the displacement field on the Dy concentration has led to an understanding of the physical mechanism of the formation of the exchange anisotropy in these planar systems.

PACS: 75.47.Np, 78.55.Qr, 78.67.Pt

Received: 06.09.2004
Revised: 11.10.2004