八面体倾斜对Bi0.9Co0.1FeO3多晶陶瓷物理性能的影响

IF 1.3 4区材料科学 Q3 CRYSTALLOGRAPHY

Phase Transitions Pub Date : 2023-06-06 DOI:10.1080/01411594.2023.2218005

R. Raman, G. Venkatesan, P. Sakthivel, I. B. Shameem Banu

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引用次数: 0

摘要

最近，像BiFeO3这样的多铁材料因其在存储设备中的潜在应用而引起了研究人员的兴趣。但该系统的高漏、弱磁和磁电耦合等缺点限制了其实际应用。为了解决这一问题，本文研究了八面体倾斜对多晶Bi0.9Co0.1FeO3陶瓷的电、磁、热性能的影响。钴掺杂影响了BiFeO3的结构排列，调整了BiFeO3的晶体工程。特别是，Bi0.9Co0.1FeO3的介电行为随温度的变化表现出明显的介电异常，对应于该样品的磁电耦合。此外，Bi0.9Co0.1FeO3的最大磁化强度为8.70 emu/ g，与原始BiFeO3相比提高了两个数量级。

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Octahedra tilt influencing physical properties of polycrystalline Bi0.9Co0.1FeO3 ceramics

ABSTRACT Recently, multiferroic materials such as BiFeO3 have fascinated researchers for their potential application in memory storage devices. However, high leakage, weak magnetism and magnetoelectric coupling in this system restrict its practical applications. To solve this, the octahedra tilt influencing electrical, magnetic and thermal properties of polycrystalline Bi0.9Co0.1FeO3 ceramics via solid state route is studied here. Cobalt doped BiFeO3 affect the structural arrangement and tunes the crystal engineering of BiFeO3. In particular, the temperature-dependent dielectric behaviour of Bi0.9Co0.1FeO3 shows a significant dielectric anomaly corresponding to the magnetoelectric coupling in this sample. Further, the maximum magnetization of Bi0.9Co0.1FeO3 is 8.70 emu/ g which is two orders higher in magnitude compared to pristine BiFeO3.

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来源期刊

Phase Transitions 物理-晶体学

CiteScore

3.00

自引率

6.20%

发文量

审稿时长

1.4 months

期刊介绍： Phase Transitions is the only journal devoted exclusively to this important subject. It provides a focus for papers on most aspects of phase transitions in condensed matter. Although emphasis is placed primarily on experimental work, theoretical papers are welcome if they have some bearing on experimental results. The areas of interest include: -structural phase transitions (ferroelectric, ferroelastic, multiferroic, order-disorder, Jahn-Teller, etc.) under a range of external parameters (temperature, pressure, strain, electric/magnetic fields, etc.) -geophysical phase transitions -metal-insulator phase transitions -superconducting and superfluid transitions -magnetic phase transitions -critical phenomena and physical properties at phase transitions -liquid crystals -technological applications of phase transitions -quantum phase transitions Phase Transitions publishes both research papers and invited articles devoted to special topics. Major review papers are particularly welcome. A further emphasis of the journal is the publication of a selected number of small workshops, which are at the forefront of their field.