Nanosecond Optically Induced Phase Transformation in Compressively Strained BiFeO3 on LaAlO3

Ahn, Youngjun1; Pateras, Anastasios1; Marks, Samuel D.1; Xu, Han2; Zhou, Tao3; Luo, Zhenlin2; Chen, Zuhuang4; Chen, Lang5; Zhang, Xiaoyi6; DiChiara, Anthony D.6; Wen, Haidan6; Evans, Paul G.1

2019-07-26

10.1103/PhysRevLett.123.045703

PHYSICAL REVIEW LETTERS   影响因子和分区

0031-9007

1079-7114

Above-band-gap optical illumination of compressively strained BiFcO(3) induces a transient reversible transformation from a state of coexisting tilted tetragonal-like and rhombohedral-like phases to an untilted tetragonal-like phase. Time-resolved synchrotron x-ray diffraction reveals that the transformation is induced by an ultrafast optically induced lattice expansion that shifts the relative free energies of the tetragonal-like and rhombohedral-like phases. The transformation proceeds at interfaces between regions of the tetragonal-like phase and regions of a mixture of tilted phases, consistent with the motion of a phase boundary. The optically induced transformation demonstrates that there are new optically driven routes towards nanosecond-scale control of phase transformations in ferroelectrics and multiferroics.

SCI ; EI

英语

NI论文

其他

Science and Technology Research Items of Shenzhen[JCYJ20170412153325679] ; Science and Technology Research Items of Shenzhen[JCYJ20180504165650580]

Physics

Physics, Multidisciplinary

WOS:000477918800012

AMER PHYSICAL SOC

20193107261729

Aluminum compounds ; Energy gap ; Iron compounds ; Lanthanum compounds ; Phase transitions

Physical Chemistry:801.4

PHYSICS

Web of Science

1.Univ Wisconsin, Dept Mat Sci & Engn, 1509 Univ Ave, Madison, WI 53706 USA
2.Univ Sci & Technol China, Natl Synchrotron Radiat Lab, Hefei 230026, Anhui, Peoples R China
3.ID01 ESRF, 71 Ave Martyrs, F-38000 Grenoble, France
4.Harbin Inst Technol, Sch Mat Sci & Engn, Shenzhen 518055, Peoples R China
5.Southern Univ Sci & Technol, Dept Phys, Shenzhen 518055, Guangdong, Peoples R China
6.Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA

Ahn, Youngjun,Pateras, Anastasios,Marks, Samuel D.,et al. Nanosecond Optically Induced Phase Transformation in Compressively Strained BiFeO3 on LaAlO3[J]. PHYSICAL REVIEW LETTERS,2019,123(4).

Ahn, Youngjun.,Pateras, Anastasios.,Marks, Samuel D..,Xu, Han.,Zhou, Tao.,...&Evans, Paul G..(2019).Nanosecond Optically Induced Phase Transformation in Compressively Strained BiFeO3 on LaAlO3.PHYSICAL REVIEW LETTERS,123(4).

Ahn, Youngjun,et al."Nanosecond Optically Induced Phase Transformation in Compressively Strained BiFeO3 on LaAlO3".PHYSICAL REVIEW LETTERS 123.4(2019).