أرسل هذا في رسالة قصيرة: Transport properties and thermoelectric figure of merit of YBa<inf>2</inf>Cu<inf>3</inf>O<inf>7-x</inf>-Bi<inf>0.5</inf>Na<inf>0.5</inf>TiO<inf>3</inf>ceramics

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  _| ||      | ||    | .  ||  | ||__      | ||   
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