Patent · US Active

Ferromagnetic or ferrimagnetic layer, method for the production thereof, and use thereof

US7642098B2 · kind B2 · utility

0Cited by

1References

20Claims

0Family size

Assignee

Forschungszentrum Karlsruhe GmbH · DE

Inventors

Viacheslav Bekker · Karlsruhe, DE
Harald Leiste · Weingarten, DE
Klaus Seemann · Östringen, DE
Stefan Zils · Ettlingen, DE

Key dates

Filing date	Mar 25, 2006
Grant date	Jan 5, 2010
Priority date	—
Expiry date	Dec 10, 2026

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/12361
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A film and method of preparing a film. The film is made of at least one of ferromagnetic and ferrimagnetic material. An elongated slot is included in the material and is operable to control the domain structure of the material. The depth of the elongated slot is the same as the thickness of the film and the width of the elongated slot is greater than an exchange length of the material. The slot is free from contact with any side of the film.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.