Polarization-dependent photoinduced metal–insulator transitions in manganites  

作　　者：Lina Deng Weiye Zhang Hanxuan Lin Lifen Xiang Ying Xu Yadi Wang Qiang Li Yinyan Zhu Xiaodong Zhou Wenbin Wang Lifeng Yin Hangwen Guo Chuanshan Tian Jian Shen 

机构地区：[1]State Key Laboratory of Surface Physics,Institute for Nanoelectronic Devices and Quantum Computing,and Department of Physics,Fudan University,Shanghai 200433,China [2]Shanghai Research Center for Quantum Sciences,Shanghai 201315,China [3]Zhangjiang Fudan International Innovation Center,Fudan University,Shanghai 201210,China [4]Collaborative Innovation Center of Advanced Microstructures,Nanjing 210093,China [5]Shanghai Branch,CAS Center for Excellence and Synergetic Innovation Center in Quantum Information and Quantum Physics,Shanghai 201315,China

出　　处：《Science Bulletin》2024年第2期183-189,共7页科学通报（英文版）

基　　金：supported by the National Key Research and Development Program of China(2022YFA1403300 and 2020YFA0309100);the National Natural Science Foundation of China(11991060,12074075,12074073,12074071,12074080,and 12274088);the Shanghai Municipal Science and Technology Major Project(2019SHZDZX01);the Shanghai Municipal Natural Science Foundation(20501130600,22ZR1408100,22ZR1407400,and 23ZR1407200);support from the National Key Research and Development Program of China(2021YFA1400503 and 2021YFA1400202);the National Natural Science Foundation of China(12125403,11874123,and 12221004).

摘　　要：In correlated oxides,collaborative manipulation on light intensity,wavelength,pulse duration and polarization has yielded many exotic discoveries,such as phase transitions and novel quantum states.In view of potential optoelectronic applications,tailoring long-lived static properties by light-induced effects is highly desirable.So far,the polarization state of light has rarely been reported as a control parameter for this purpose.Here,we report polarization-dependent metal-to-insulator transition(MIT)in phaseseparated manganite thin films,introducing a new degree of freedom to control static MIT.Specifically,we observed giant photoinduced resistance jumps with striking features:(1)a single resistance jump occurs upon a linearly polarized light incident with a chosen polarization angle,and a second resistance jump occurs when the polarization angle changes;(2)the amplitude of the second resistance jump depends sensitively on the actual change of the polarization angles.Linear transmittance measurements reveal that the origin of the above phenomena is closely related to the coexistence of anisotropic micro-domains.Our results represent a first step to utilize light polarization as an active knob to manipulate static phase transitions,pointing towards new pathways for nonvolatile optoelectronic devices and sensors.

关 键 词：Metal-insulator phase transitions Polarization of light Electronic phase separation Selective domain controllability 

分 类 号：O469[理学—凝聚态物理]