压缩应变BiFeO3/LaAlO3的纳秒光致相变
Nanosecond Optically Induced Phase Transformation in Compressively Strained BiFeO3 on LaAlO3
摘要：
双禁带光学照明诱导的转变，从倾斜的四边形状（T-样）和菱形状（R-样）相的压缩应变BiFeO 3的非倾斜的T-样相。光激发导致在类T相的面外晶格膨胀。该转变在具有T-状和倾斜R-状和倾斜T-状相之间的边界的区域中进行，与边界的运动一致。光诱导相变表明，有新的光驱动的路线，在铁电和多铁性相变的纳秒级控制。
英文摘要：
Above-bandgap optical illumination induces a transformation from tilted tetragonal-like (T-like) and rhombohedral-like (R-like) phases to an untilted T-like phase in compressively strained BiFeO3. Optical excitation leads to an out-of-plane lattice expansion in the T-like phase. The transformation proceeds in regions with boundaries between the T-like and tilted R-like and tilted T-like phases, consistent with the motion of a boundary. The optically induced transformation indicates that there are new optically driven routes towards nanosecond-scale control of phase transformations in ferroelectrics and multiferroics.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
