Long-range order and magnetic properties of Mn_xPt_1 – x thin films

Authors

Kurt W. Wierman, University of Nebraska - Lincoln
Roger D. Kirby, University of Nebraska-LincolnFollow

Date of this Version

March 1996

Comments

Published in Journal of Magnetism and Magnetic Materials 154:1 (March 1996), pp. 12–16. http://www.elsevier.com/locate/jmmm
Copyright © 1996 Elsevier Science B. V. Used by permission.

Abstract

Thin films of Mn_xPt_1–x (x = 0.18, 0.22, 0.25, 0.30, 0.34) were prepared by magnetron sputtering onto quartz substrates. After annealing in vacuum for 1 h at 850°C, X-ray diffraction indicates that the films have the Cu₃Au cubic structure (a = 3.87 Å) and are highly textured with the (111) axis along the film normal. These samples have a high degree of long-range order, as indicated by the ratio of the intensities of the superlattice (100) and fundamental (200) X-ray diffraction reflections. We report here the results of magnetic and magnetooptical measurements on these samples over a wide range of temperatures.