| 摘要 |
The present invention provides a radiation detector with high detection sensitivity. The radiation detector according to the present invention includes an Al2O3 substrate, a Fe2O3 thin film layered on the Al2O3 substrate, a CaxCoO2 (where 0.15<×<0.55) thin film that is layered on the Fe2O3 thin film and that has CoO2 planes that are aligned inclined to the surface of the Al2O3 substrate, a first electrode disposed on the CaxCoO2 thin film, and a second electrode disposed on the CaxCoO2 thin film in a position opposed to the first electrode in the direction in which the CoO2 planes are aligned inclined.
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