Saturated and Pinched Ferroelectric Hysteresis Loops in BiFeO3 Ceramics

Autor:	Chae Il Cheon, Jin Hong Choi, Takeshi Yoshimura, Norifumi Fujimura
Rok vydání:	2019
Předmět:	Materials science General Physics and Astronomy chemistry.chemical_element Ionic bonding Sintering Polarization (waves) Ferroelectricity Oxygen chemistry visual_art Electric field visual_art.visual_art_medium Ferroelectric hysteresis Ceramic Composite material
Zdroj:	Journal of the Korean Physical Society. 74:269-273
ISSN:	1976-8524 0374-4884
DOI:	10.3938/jkps.74.269
Popis:	BiFeO3 (BFO) ceramics were prepared by conventional solid-state reaction method without quenching. The effect of the sintering condition on the phase evolution and the ferroelectric properties of these BFO ceramics were investigated. A pinched polarization - electric field (P-E) hysteresis loop was observed in the sample sintered at high temperature for a short period (820 °C for 1 hour) because the domain wall motion is restricted by a large number of ionic defects such as oxygen vacancies. The BFO sample sintered at low temperature for a long period (760 °C for 6 hours) displayed a well-saturated P-E hysteresis loop due to its low ionic defect density.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::51616878de6195c3b1355d694e40888b https://doi.org/10.3938/jkps.74.269 Zobrazit plný text záznamu Full text from SpringerLink