發送短信 : Large electric field-induced strain and piezoelectric responses of lead-free Bi<inf>0.5</inf>(Na<inf>0.80</inf>K<inf>0.20</inf>)<inf>0.5</inf>TiO<inf>3</inf>-Ba(Ti<inf>0.90</inf>Sn<inf>0.10</inf>)O<inf>3</inf> ceramics near morphotropic phase boundary

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