| 摘要 |
Provided are a dielectric element and an electron emitter exhibiting suppressed deterioration of element characteristics, which deterioration would otherwise occur with repeated use thereof. An electron emitter (i.e., a dielectric element) of the present invention is configured so as to operate through application of a predetermined driving electric field to an emitter layer. The emitter layer is formed of a dielectric layer containing, as a primary component, a PMN-PT-PZ ternary solid solution composition, and having a Curie temperature Tc (° C.) falling within a range of 60<=Tc<=150.
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