Non-volatile spin switch
AssigneePurdue Research Foundation
InventorsBehtash Behin-Aein, Supriyo Datta
Life of this patent
Estimating the term…
Abstract
A circuit element includes first and second nanomagnets and first and second fixed magnets. The first nanomagnet is inductively coupled to a first current carrying element, and is configured to change polarity responsive to current in the first current carrying element. In one example, the first current carrying element includes a spin Hall effect substrate. The second nanomagnet is magnetically coupled to the first nanomagnet, and is inductively coupled to a second current carrying element. The first fixed magnet is disposed on the second nanomagnet and has a first fixed polarity, and second fixed magnet disposed on the second nanomagnet and has a second fixed polarity.
Claims20
A circuit element, comprising:
- a first nanomagnet inductively coupled to a first current carrying element, the first nanomagnet configured to change polarity responsive to current in the first current carrying element;
- a second nanomagnet magnetically coupled to the first nanomagnet and inductively coupled to a second current carrying element;
- a first fixed magnet disposed on the second nanomagnet and having a first fixed polarity;
- and
- a second fixed magnet disposed on the second nanomagnet and having a second fixed polarity.
A plurality of circuit elements, each circuit element comprising:
- a first nanomagnet inductively coupled to a first current carrying element, the first nanomagnet configured to change polarity responsive to current in the first current carrying element;
- a second nanomagnet magnetically coupled to the first nanomagnet and inductively coupled to a second current carrying element;
- a first fixed magnet disposed on the second nanomagnet and having a first fixed polarity;
- and
- a second fixed magnet disposed on the second nanomagnet and having a second fixed polarity.
A circuit element, comprising:
- a first nanomagnet inductively coupled to a first current carrying element, the first nanomagnet configured to change polarity responsive to current in the first current carrying element;
- a second nanomagnet magnetically coupled to the first nanomagnet and inductively coupled to a second current carrying element;
- a first fixed magnet disposed on the second nanomagnet and having a first fixed polarity;
- a second fixed magnet disposed on the second nanomagnet and having a second fixed polarity;
- an input coupled to the first current carrying element, and an output coupled to the second current carrying element;
- and
- a positive voltage source coupled to the first fixed magnet and a negative voltage source coupled to the second fixed magnet.
Dependencies are inferred from the claim text.