کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
8015966 1517203 2016 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Designing tunable band-gap and magnetization at room-temperature in Pb(Ti1-xMx)O3-δ (M=Ni and Pd) thin films
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فناوری نانو (نانو تکنولوژی)
پیش نمایش صفحه اول مقاله
Designing tunable band-gap and magnetization at room-temperature in Pb(Ti1-xMx)O3-δ (M=Ni and Pd) thin films
چکیده انگلیسی
The Pb(Ti1-xMx)O3-δ (M=Ni and Pd) ferroelectric thin films prepared by a sol-gel technique have been studied by means of structural characterizations, optical and magnetic measurements. X-ray diffraction and Raman scattering results reflect the visible changes in average structure. Moreover, d8M2+ doping has important effects on the energy band structure and magnetic orderings. Optical transmittance spectra analysis indicates that Pb(Ti0.85Ni0.15)O3-δ and Pb(Ti0.85Pd0.15)O3-δ thin films present small band-gaps of 2.67 eV and 2.55 eV, respectively. Also, the as-grown Pb(Ti0.85M0.15)O3-δ thin films show room-temperature ferromagnetism, in contrast to PbTiO3 which is diamagnetic. A bound magnetic polaron model can be employed to explain the observed ferromagnetic behavior.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Letters - Volume 185, 15 December 2016, Pages 323-326
نویسندگان
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