Experimental Study and Modeling of the Magnetic Properties of Dy–Co Films.

Authors :: Vas'kovskii, V. O.
Kudyukov, E. V.
Stepanova, E. A.
Kravtsov, E. A.
Adanakova, O. A.
Rusalina, A. S.
Balymov, K. G.
Svalov, A. V.
Source :: Physics of Metals & Metallography; May2021, Vol. 122 Issue 5, p478-484, 7p
Publication Year :: 2021
Abstract: Systematic data on the structural state and magnetic properties of films belonging to the binary Dy<subscript>100 –</subscript><subscript>x</subscript>Co<subscript>x</subscript> system have been measured within broad ranges of compositions (0 ≤ x < 85), temperatures (5‒300 K), and magnetic fields (0–70 kOe). It was found that in the absence of magnetic moment on Co atoms (x ≤ 50), the films are in an asperomagnetic state, in which a considerable and nonmonotonical concentration change in the principal magnetic characteristics is observed. In the region of x > 50, the films have a sperimagnetic structure. It has been shown that the quantitative description of spontaneous magnetization in such a state can be obtained in the molecular field model. [ABSTRACT FROM AUTHOR]