Magnetically-and electrically-induced variable resistance materials and method for preparing same
AssigneeThe Trustees of the University of Pennsylvania
InventorsI-Wei Chen, Alexander Mamchik
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Abstract
Provided are new compositions of ruthenates in the pervoskite and layered pervoskite family, wherein the ruthenate compositions exhibit large magnetoresistance (MR) and electric-pulse-induced resistance (EPIR) switching effects, the latter observable at room temperature. This is the first time large MR and EPIR effects have been shown together in ruthenate compositions. Further provided are methods for synthesizing the class of ruthenates that exhibits such properties, as well as methods of use therefor in electromagnetic devices, thin films, sensors, semiconductors, insulators and the like.
Claims20
A switching device comprising:
- a magnetoresistive material formed from a ruthenate formulation of a perovskite family of materials;
- and
- plurality of contact points;
- wherein the magnetoresistive material exhibits an electric-pulse-induced resistance (EPIR) switching effect.
A method for performing electric-pulse-induced resistance (EPIR) switching comprising:
- depositing a magnetoresistive material formed from a ruthenate formulation of a perovskite family of material on a substrate, wherein the magnetoresistive material exhibits an electric-pulse-induced resistance (EPIR) switching effect;
- providing a plurality of electrical contact points on the magnetoresistive material;
- and
- creating an electric-pulse-induced resistance switching effect by applying a field to the electrical contacts.
Dependencies are inferred from the claim text.