Magnetism and ferroelectricity in BiFeO3 doped with Ga at Fe sites
| Autor: | Chuan-Pin Cheng, Ling-Ling Wang, Wen-Zhi Xiao, Qing-Yan Rong |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Materials science
Spintronics Condensed matter physics Magnetism Information storage Mechanical Engineering Doping Metals and Alloys 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Ferroelectricity 0104 chemical sciences Spontaneous polarization Condensed Matter::Materials Science Mechanics of Materials Ferrimagnetism Materials Chemistry Condensed Matter::Strongly Correlated Electrons 0210 nano-technology |
| Zdroj: | Journal of Alloys and Compounds. 797:117-121 |
| ISSN: | 0925-8388 |
| DOI: | 10.1016/j.jallcom.2019.05.082 |
| Popis: | Theoretical calculations were performed to investigate the effect of isovalent substitution of Fe with Ga on the magnetic and ferroelectric properties in BiFeO3 doped with 16.6% and 8.3% Ga. Such substitution will break the G-type anti-ferromagnetic order and enhance the magnetism of BiFeO3 by forming a stable ferrimagnetic order. The doped system maintains robust spontaneous polarization that is sufficiently large for practical applications at room temperature. The findings explain experimentally observed magnetism. The coexistence of magnetism and ferroelectricity in the doped BiFeO3 render it a candidate material for application to information storage and spintronics devices. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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