نتایج جستجو برای: bifeo3

تعداد نتایج: 1246  

Journal: :Applied Physics Letters 2007

Journal: : 2021

Kaolin yüzeyine perovskit yapılı BiFeO3 (BFO) nanoparçacıklarının yerleştirilmesiyle Kaolin-BiFeO3 (KBFO) nanokompoziti hazırlandı. Saf kaolin (K), saf BFO ve hazırlanan KBFO nanokompozitin fotokatalitik aktiviteleri UVA görünür bölge ışımaları altında katyonik bir boyar madde olan kristal viyole (KV)’nin bozunması incelenerek değerlendirildi. nanokompozitinin diğer katalizörlere nispeten daha ...

Journal: :Journal of Chemical Physics 2021

We review the concept of surface charge, first, in context polarization ferroelectric materials and, second, layers charged ions ionic insulators. While former is traditionally discussed ferroelectrics community and latter science community, we remind reader that two descriptions are conveniently unified within modern theory polarization. In both cases, charge leads to electrostatic instability...

Journal: :Physical Review Materials 2021

Helium implantation in epitaxial thin films is a way to control the out-of-plane deformation independently from in-plane strain controlled by epitaxy. In particular, means of helium microscope allows for local and patterning down nanometer resolution, which interest device applications. We present here study bismuth ferrite (BiFeO3) where was patterned locally implantation. Our combined Raman, ...

Journal: :Journal of Alloys and Compounds 2021

• BiFeO 3 particles were embedded in non-conducting non-piezoactive PVDF terpolymer. Dielectric and piezoelectric properties of -PVDF composite with different volume fraction studied. The charge voltage coefficients granular determined by using Yamada Poon model. is an interesting multiferroic material potential use sensors transducers. However, the high coercive field low dielectric strength t...

Journal: :Advanced Functional Materials 2023

Bismuth ferrite (BiFeO3) possesses a non-collinear spin order while the ferroelectric breaks space inversion symmetry. This allows efficient electric-field control of magnetism and makes it promising candidate for applications in low-power spintronic devices. Epitaxial strain effects have been intensively studied exhibit significant modulation magnetic bismuthBiFeO3, but tuning its structure wi...

Journal: :Advanced theory and simulations 2022

Bismuth ferrite, BiFeO3, is a multiferroic solid that attracting increasing attention as potential photocatalytic material, because the ferroelectric polarization enhances separation of photogenerated carriers. With motivation finding routes to engineer band gap and alignment, while conserving or enhancing properties, thermodynamic, electronic, properties BiCoxFe1?xO3 solutions (x = 0, 0.0625, ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه فردوسی مشهد - دانشکده علوم پایه 1391

مواد چندفرویی (multiferroic) ویژگی فروالکتریکی (یا پادفروالکتریکی) را به همراه ویژگی فرومغناطیسی (یا پادفرومغناطیسی) در یک فاز از خود نشان می دهند. چند فرویی bifeo3 به خاطر دماهای گذار بالایی که دارد (حالت پادفرومغناطیسی با دمای نیل tn = 640 k و حالت فروالکتریکی با دمای کوری tc = 1100 k) توجه زیادی را به خود جلب کرده است. این ترکیب به خاطر پادفرومغناطیس بودن و نداشتن مغناطش خالص در نبود میدان م...

Journal: :Acta Crystallographica Section A Foundations of Crystallography 2010

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