| US 7,558,103 B2 | ||
| Magnetic switching element and signal processing device using the same | ||
| Shiho Nakamura, Fujisawa (Japan); Yuichi Motoi, Kawasaki (Japan); Shigeru Haneda, Yokohama (Japan); Hirofumi Morise, Yokohama (Japan); and Takahiro Hirai, Yokohama (Japan) | ||
| Assigned to Kabushiki Kaisha Toshiba, Tokyo (Japan) | ||
| Filed on Mar. 30, 2007, as Appl. No. 11/729,982. | ||
| Application 11/729982 is a continuation in part of application No. 11/517559, filed on Sep. 08, 2006, abandoned. | ||
| Claims priority of application No. 2005-262579 (JP), filed on Sep. 09, 2005. | ||
| Prior Publication US 2007/0211525 A1, Sep. 13, 2007 | ||
| Int. Cl. G11C 11/00 (2006.01) | ||
| U.S. Cl. 365—151 [365/164; 365/171; 977/725; 977/943] | 33 Claims |
| 1. A magnetic switching element comprising:
a magnetic element which has a magnetization fixed section whose magnetization direction is fixed, a magnetization free section
whose magnetization direction changes due to spin-polarized electrons, and a non-magnetic intermediate layer between the magnetization
fixed section and the magnetization free section;
first and second electrodes which puts the magnetic element therebetween;
a current control section which is connected to the first and second electrodes, the current control section controlling the
magnetization direction of the magnetization free section in such a manner that a current is made to flow between the magnetization
fixed section and the magnetization free section;
a movable conductive tube having a fixed end and a free end;
a magnetic fine particle provided at the conductive tube; and
a third electrode connected to the fixed end of the conductive tube.
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