نتایج جستجو برای: bifeo3
تعداد نتایج: 1246 فیلتر نتایج به سال:
BiFeO(3) is one of the most studied multiferroic materials. Both its magnetic and ferroelectric properties can be influenced by doping. A large body of work on the doped material has been presented in the past couple of years. In this paper we provide a perspective on general doping concepts and their impact on the material's functionality.
Multifunctional oxides are promising materials because of their fundamental physical properties as well as their potential in applications. Among these materials, multiferroics exhibiting ferroelectricity and magnetism are good candidates for spin electronic applications using the magnetoelectric effect, which couples magnetism and ferroelectricity. Furthermore, because ferroelectrics are insul...
Non-volatile electronic devices based on magnetoelectric multiferroics have triggered new possibilities of outperforming conventional devices for applications. However, ferroelectric reliability issues, such as imprint, retention and fatigue, must be solved before the realization of practical devices. In this study, everlasting ferroelectric retention in the heteroepitaxially constrained multif...
Lightwave communication systems are predominantly used for handling high-speed data traffic. Long-distance ground-based systems particularly depend on optical fibers. Several business and research facilities employ direct fiber connections, and fiber to the home (FTTH) technology is foreseeable in the near future. These developments are driven particulary by the high demand for bandwidth necess...
Multiferroic bismuth ferrite (BiFeO(3)) nanotubes have been synthesized using a modified template methodology and characterized by a number of techniques, including XRD, SEM, TEM, HRTEM as well as EDX and SAED.
The present paper reports the multifunctional properties of lead-free BiFeO3–La (BFO–La) thin films. structural, microstructural, and optical have been investigated as a function lanthanum doping concentration. structural at room temperature showed formation perovskite structure, thus suggesting high quality obtained film compositions. Raman spectroscopy analysis revealed slight variation in bo...
ing the full potential linearized augmented plan wave in framework density functional theory(DFT) with wien2k code. The band structure and energy gap of the bulk structures are calculated with GGA-PBE, GGA+U and GGA+MBJ approximations, and results obtained from the MBJ function are more consistent with the reported experimental results. The optical properties such as real and imaginary parts...
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We report the formation of a novel ferromagnetic state in the antiferromagnet BiFeO3 at the interface with ferromagnet La(0.7)Sr(0.3)MnO3. Using x-ray magnetic circular dichroism at Mn and Fe L(2,3) edges, we discovered that the development of this ferromagnetic spin structure is strongly associated with the onset of a significant exchange bias. Our results demonstrate that the magnetic state i...
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