Magnetic Properties of Ultrathin Fe/Ag/Fe Sandwich on Pt(111)

Author

Huei-Ying Ho ; Chi-Ching Chang ; Hsing-Hsuane Wu ; Yao-Jung Chen ; Jyh-Shen Tsay

Author_Institution

Dept. of Sci. Educ., Nat. Taipei Univ. of Educ., Taipei, Taiwan

Volume

47

Issue

10

fYear

2011

Firstpage

3901

Lastpage

3904

Abstract

The magnetic properties of ultrathin Fe films deposited on 1.4 ML Ag/1.5 ML Fe/Pt(111) were investigated in this research. The change of the easy axis of magnetization shows that a strong interaction between the two Fe layers is superior to the effects of the double Fe/Ag interfaces. During the annealing treatment, we found that an incomplete atomic exchange between the Ag interlayer and the Fe capping layer might exist. Some Ag atoms start being desorbed during the atomic exchange process. The thickness of the Fe capping layer does not affect the formation of Fe-Pt alloy for the Fe/Ag/Fe/Pt(111) system. By comparing the sandwich system with the ultrathin Fe/Pt(111) system, we found that the Fe layers could be stabilized by an Ag interlayer from the formation of Fe-Pt alloy.

Keywords

exchange interactions (electron); ferromagnetic materials; iron; magnetic annealing; magnetic hysteresis; magnetic thin films; silver; Fe-Ag-Fe; Pt; Pt(111); annealing; atomic exchange; capping layer; hysteresis loops; magnetic properties; magnetization; ultrathin films; Annealing; Atomic layer deposition; Iron; Magnetic hysteresis; Magnetic properties; Surface treatment; Coercive force; iron alloy; platinum; silver; ultrathin film;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2011.2148693

Filename

6028168