Intematix Corporation

Qizhen Xue

Yi-Qun Li

Ning Wang

Young K Yoo

Daesig Kim

Shifan Cheng

Xiao-dong Xiang

Ferroelectric rare-earth manganese-titanium oxides and methods of their manufacture. The ferroelectric materials can provide nonvolatile data storage in rapid access memory devices.

Ferroelectric rare-earth manganese-titanium oxides

Novel metal oxide compositions are disclosed. These ferromagnetic or ferrimagnetic compositions have resitivities that vary between those of semiconducting and insulating materials, and they further exhibit Curie temperatures greater than room temperature (i.e., greater than 300 K). They are perovskite structures with the general chemical formulas (AM)BO, (AM)(B'B&#x2033;)Oor A(BM)O, where A can be a 1, 2and 3charged ion; B can be a 5, 4, 3charged ion; B&#x2032; and B&#x2033; can be 2, 3, 4, 5and 6charged ion. M is a magnetic ion dopant. X-ray diffraction patterns are presented for exemplary compositions.

Magnetic doped perovskite oxides

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Walnut Creek, CA, United States of America

Qizhen Xue