Crystalline ionic oxides with modified electronic structure
AssigneeShell Oil Company
InventorMichael KANDIANIS
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Abstract
Novel conductive monocrystalline magnesium oxides are provided. The conductive monocrystalline magnesium oxides have a purity of at least 98% and have an imaginary contribution to the dielectric permittivity (ε″) of at most 0.03 at a frequency of 0.031 Hz or have a conductivity of at least 10−8.4 S*m−1 at a frequency of 0.031 Hz. Certain conductive monocrystalline magnesium oxides have a positive charge density. The conductive monocrystalline magnesium oxides may be prepared by a novel modulated annealing process.
Claims15
A conductive monocrystalline magnesium oxide having a purity of at least 98% and an imaginary contribution to the dielectric permittivity (ε″) of at most 0.03 at a frequency of 0.031 Hz.
A conductive monocrystalline magnesium oxide having a purity of at least 98% and a conductivity of at least 10−8.4 S*m−1 at a frequency of 0.031 Hz.
A conductive monocrystalline magnesium oxide having a purity of at least 99% and an imaginary contribution to the dielectric permittivity (ε″) of at most 0.03 at a frequency of 0.031 Hz, a conductivity of at least 10−8.4 S*m−1 at a frequency of 0.031 Hz, and an increased Raman scattering intensity in the 1019 cm−1 range compared to natural monocrystalline magnesium oxide.
Dependencies are inferred from the claim text.