The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 07, 2012
Filed:
Apr. 11, 2007
Xiufeng Han, Beijing, CN;
Zhongming Zeng, Beijing, CN;
Yunan Han, Beijing, CN;
Lixian Jiang, Beijing, CN;
Zilong Peng, Beijing, CN;
Wenshan Zhan, Beijing, CN;
Xiufeng Han, Beijing, CN;
Zhongming Zeng, Beijing, CN;
Yunan Han, Beijing, CN;
Lixian Jiang, Beijing, CN;
Zilong Peng, Beijing, CN;
Wenshan Zhan, Beijing, CN;
Institute of Physics, Chinese Academy of Sciences, Beijing, CN;
Abstract
A magnetic logic element with toroidal magnetic multilayers (). The magnetic logic element comprises a toroidal closed section which is fabricated by etching a unit of magnetic multilayers () deposited on a substrate. Optionally, the magnetic logic element may also comprise a metal core () in the closed toroidal section. Said magnetic multilayers () unit is arranged on the input signal lines A, B, C and an output signal line O, and then is made into a closed toroidal. Subsequently, on the toroidal magnetic multilayered unit (), the input signal lines A', B′, C′ and an output signal line O′ are fabricated by etching. This magnetic logic element can reduce the demagnetization field and the shape anisotropy effectively, leading to the decrease of the reversal field of magnetic free layer. Furthermore, this magnetic logic element has stable working performance and long operation life of the device.