Chemistry of inorganic compounds – Oxygen or compound thereof – Metal containing
Reexamination Certificate
2007-03-27
2007-03-27
Vanoy, Timothy C. (Department: 1754)
Chemistry of inorganic compounds
Oxygen or compound thereof
Metal containing
C423S593100, C423S594100, C423S594200, C423S594160, C423S606000, C423S632000, C423S635000, C324S252000, C324S260000
Reexamination Certificate
active
10240832
ABSTRACT:
The room temperature, low field intergrain magnetoresistance (IMR) of the double perovsktite SrFe0.5MO0.5O3is found to be highly tunable by doping either Ca or Ba into the Sr site. The dopant exerts a chemical pressure, changing the Curie temperature and the magnetic softness. The IMR at optimal doping (Sr0.2Ba0.8Fe0.5Mo0.5O3) is approximately 3.5% in 100 Oe, and increases further in high fields. The unprecedented strength of the IMR in this highly spin polarized system provides new grounds for employing novel magnetic materials for new magnetic sensing applications and spin electronics.
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Cheong Sang-Wook
Kim Bog-Gi
Duane Morris LLP
Rutgers University
Vanoy Timothy C.
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