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Humidity effect on BaTiO3 c-domain surface potential inversion induced by electric field
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View: Figures


Image of FIG. 1.
FIG. 1.

(Color online) (a) AFM topography image of the BaTiO3 (001) surface. The Z scale is 200 nm. (b) Surface potential image without voltage applied or at 4 V/mm electric field intensity. (c) Schematic of the surface potential measurement with applied electric field. (d) Surface potential image after applying 6 V/mm electric field intensity showing potential inversion.

Image of FIG. 2.
FIG. 2.

(Color online) (a) Topography image of the c domain with the 200 nm Z scale. Surface potential map of the c domain at (b) 18.1 V and (c) 18.2 V showing surface potential inversion. (d) Complete recovery upon switching the electric field off.

Image of FIG. 3.
FIG. 3.

(Color online) Surface potential mapping on the 180° c domain zone with different applied voltage: (a) 18.1 V, (b) 18.2 V, (c) alternating between 18.1 V and 18.2 V with the corresponding potential profile. (d) Reversal electric field intensity dependence on relative humidity. (e) Surface potential images of a-c domain patterns on the (001) BaTiO3 single crystal at 2% RH, and (f) 65% RH. Same 0.6 V Z scale for (e) and (f).


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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Humidity effect on BaTiO3c-domain surface potential inversion induced by electric field