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Conduction Mechanism in (La0.7Sr0.3MnO3)n(BiFeO3)n Multilayered Thin Films
Huiwen Zhu,Shunli Wang,Ping Jiang,Jingqin Shen,Weihua Tang 한국물리학회 2010 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.57 No.2
(La0.7Sr0.3MnO3)n(BiFeO3)n multilayered thin films were deposited on (0 0 1) SrTiO3 substrates by using the RF magnetron sputtering method, and their conduction mechanisms in the temperature range between 150 K and 300 K were investigated using several common dielectric conduction models. The results indicate the current-voltage characterization of the as-fabricated thin films obey Ohm’s law at 300 K, but the space-charge-limited conduction mechanism becomes dominant in the as-fabricated thin films as the temperature is decreased.