کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
8161217 1525115 2018 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Magnetoelectric coupling in oxygen deficient La0.67Sr0.33MnO3-δ/BaTiO3 composite film
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم فیزیک ماده چگال
پیش نمایش صفحه اول مقاله
Magnetoelectric coupling in oxygen deficient La0.67Sr0.33MnO3-δ/BaTiO3 composite film
چکیده انگلیسی
The effect of magnetic field on the polarization and dielectric properties in oxygen deficient La0.67Sr0.33MnO3-δ/BaTiO3 composite film are investigated. A temperature dependent polarization variation induced by the magnetic field is observed. Under a magnetic fields of 0.8 T, the enhancement of saturation polarization is remarkable at low temperature region with a maximum changing rate 66.5% occurring at 70 K, whereas it is indistinctive at high temperature. The composite film also exhibits significant magnetodielectric property. The positive changing rate of dielectric constant ηε induced by 0.8 T magnetic field reaches the maximum of 80% and 57% at 80 K with the frequency of 1 kHz and 100 kHz, respectively, and the corresponding changing rate of dielectric loss get the negative peak of −27% and −22%. The magneto-induced polarization and dielectric change may result from the charge-based coupling as well as the Maxwell-Wagner effect in this heterojunction.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physica B: Condensed Matter - Volume 534, 1 April 2018, Pages 141-144
نویسندگان
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