發送短信 : 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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| || | ||   / _ \\   /  ___||   / _ \\  | || | || 
| || | ||  / //\ \\ | // __    / //\ \\ | '--' || 
| \\_/ || |  ___  ||| \\_\ || |  ___  ||| .--. || 
 \____//  |_||  |_|| \____//  |_||  |_|||_|| |_|| 
  `---`   `-`   `-`   `---`   `-`   `-` `-`  `-`