Magnetocapacitance effects of Pb0.7 Sr0.3 TiO 3 / La0.7 Sr0.3 MnO3 thin film on Si substrate

Ying Chen, Genshui Wang, Shuai Zhang, Xiuyun Lei, Junyu Zhu, Xiaodong Tang, Yongling Wang, Xianlin Dong

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Abstract

Pb0.7 Sr0.3 TiO3 / La0.7 Sr0.3 MnO3 (PST/LSMO) thin film has been deposited on Si substrate by chemical solution deposition. Obvious changes in dielectric constant and loss as functions of frequency and magnetic field were observed in PST/LSMO thin film. By applying both dc bias electric and magnetic fields, apparent dielectric anomalies were observed in the "butterfly- hysteresis" curves. These effects may be useful for practical application. The mechanism for the magnetocapacitance effects in PST/LSMO is rationalized by combining the Maxwell-Wagner capacitor model and the magnetoresistivity and magnetostriction of the LSMO.

Original languageEnglish
Article number052910
JournalApplied Physics Letters
Volume98
Issue number5
DOIs
StatePublished - 31 Jan 2011

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