The combination of carbon nanotubes with transition metal oxides can exhibit complementary charge storage properties for use as electrode materials for next generation energy storage devices.

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The growth of complex oxide thin films with atomic precision offers bright prospects to study improved properties and novel functionalities.

Enhanced magneto-ionic effects in nanoporous cobalt ferrite films conformally coated with HfO2 (i.e., two-oxide nanoporous composite films) are demonstrated.