Unification of the negative electrocaloric effect in Bi1/2Na1/2TiO3-BaTiO3 solid solutions by Ba1/2Sr1/2TiO3 doping
The microscopic mechanisms of the negative electrocaloric effect (ECE) of the single-phase
(1− x)(0.94 Bi 1/2 Na 1/2 TiO 3-0.06 BaTiO 3)-xBa 1/2 Sr 1/2 TiO 3 (BNT-BT-BST) perovskite
solid solutions fabricated via the sol-gel technique are explored in this study. Dielectric and
mechanical relaxation analyses are employed to investigate the ferroelectric and structural
transitions of the samples. The electrocaloric properties of the samples were measured by
thermodynamics Maxwell relations. The difference between the depolarization temperature …
(1− x)(0.94 Bi 1/2 Na 1/2 TiO 3-0.06 BaTiO 3)-xBa 1/2 Sr 1/2 TiO 3 (BNT-BT-BST) perovskite
solid solutions fabricated via the sol-gel technique are explored in this study. Dielectric and
mechanical relaxation analyses are employed to investigate the ferroelectric and structural
transitions of the samples. The electrocaloric properties of the samples were measured by
thermodynamics Maxwell relations. The difference between the depolarization temperature …
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