A coupling phenomenon between the magnetization of two ferromagnetic thin films separated by a thin metallic film--Application to magnetic memories

Author

Bruyere, J.C. ; Massenet, O. ; Montmory, R. ; Néel, L.

Author_Institution

Laboratoire d́Electrostatique et de Physique du Métal, C.N.R.S., Grenoble, France

Volume

1

Issue

1

fYear

1965

fDate

3/1/1965 12:00:00 AM

Firstpage

10

Lastpage

12

Abstract

A new type of magnetic interaction between two ferromagnetic thin films separated by a third metallic nonmagnetic thin film is studied. This coupling tends to bring the magnetization of the ferromagnetic materials into parallel alignment. The coupling is shown to be dependent upon the intermediate material and its thickness, and on the nature of the ferromagnetic media present. These interactions are observed for intermediate metal thicknesses up to 300 Å in the case of Palladium. The measured surface energy of this coupling is of the order of 0.1 erg/cm². A study of the variation of the coupling with temperature is given.

Keywords

Ferromagnetic films; Magnetic film memories; Multilayer magnetic films; Couplings; Magnetic anisotropy; Magnetic films; Magnetic hysteresis; Magnetic materials; Magnetic memory; Magnetic separation; Magnetization; Perpendicular magnetic anisotropy; Transistors;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.1965.1062923

Filename

1062923