论文标题
Triclinic Bifeo3：一个室温多性阶段，具有增强的磁性和电阻率
Triclinic BiFeO3: A room-temperature multiferroic phase with enhanced magnetism and resistivity
论文作者
论文摘要
BifeO3/LA2NIMNO6（BFO/LNMO）复合材料的磁性和运输特性已在实验和理论上都进行了研究。与正常的菱形（R3C）相不同，复合材料中的BFO在三斜相（P1）中结晶。有趣的是，与常规BFO（R3C）相比，复合材料在磁化强度，磁电耦合并显示出更高的电阻率方面表现出显着的增强。由于LNMO在280 K处的居里温度，因此室温和高于复合材料中的室温磁性贡献有望来自Triclinic BFO相。通过经典的蒙特卡洛模拟和密度功能理论（DFT）计算，可以验证实验观察到的磁化强度增强。与菱形BFO相比，计算显示三斜BFO中的磁矩更高。总体而言，这项研究揭示了Triclinic BFO是有希望的室温多效相，这有助于优化BFO的多效性并在将来实现更广泛的应用。
The magnetic and transport properties of BiFeO3/La2NiMnO6 (BFO/LNMO) composite have been investigated both experimentally and theoretically. Unlike the normal rhombohedral (R3c) phase, BFO in the composites is crystallized in the triclinic phase (P1). Interestingly, the composites demonstrate a significant enhancement in the magnetization, magnetoelectric coupling and show higher resistivity than that of the regular BFO (R3c). As LNMO has its Curie temperature at 280 K, the room temperature and above room temperature magnetic contribution in the composites is expected to be from the triclinic BFO phase. Experimentally observed enhancement in magnetization is validated using classical Monte Carlo simulation and density functional theory (DFT) calculations. The calculations reveal higher magnetic moments in triclinic BFO as compared to the rhombohedral BFO. Overall, this study reveals triclinic BFO as the promising room temperature multiferroic phase which is helpful to optimize the multiferroicity of BFO and achieve wider applications in future.
