TY - JOUR
T1 - Photostriction of strontium ruthenate
AU - Wei, Tzu-Chiao
AU - Wang, Hsin-Ping
AU - Liu, Heng-Jui
AU - Tsai, Dung-Sheng
AU - Ke, Jr-Jian
AU - Wu, Chung-Lun
AU - Yin, Yu-Peng
AU - Zhan, Qian
AU - Lin, Gong-Ru
AU - Chu, Ying-Hao
AU - He, Jr-Hau
N1 - KAUST Repository Item: Exported on 2020-10-01
Acknowledgements: We are especially grateful to Ching-Cheng Chuang and Chia-Yen Lee from the Institute of Biomedical Engineering, National Chiao Tung University, and Department of Electrical Engineering, National United University, for their contribution in the noncontact temperature measurements.
PY - 2017/4/24
Y1 - 2017/4/24
N2 - Transition metal oxides with a perovskite crystal structure exhibit a variety of physical properties associated with the lattice. Among these materials, strontium ruthenate (SrRuO3) displays unusually strong coupling of charge, spin and lattice degrees of freedom that can give rise to the photostriction, that is, changes in the dimensions of material due to the absorption of light. In this study, we observe a photon-induced strain as high as 1.12% in single domain SrRuO3, which we attribute to a nonequilibrium of phonons that are a result of the strong interaction between the crystalline lattice and electrons excited by light. In addition, these light-induced changes in the SrRuO3 lattice affect its electrical resistance. The observation of both photostriction and photoresistance in SrRuO3 suggests the possibility of utilizing the mechanical and optical functionalities of the material for next-generation optoelectronics, such as remote switches, light-controlled elastic micromotors, microactuators and other optomechanical systems.
AB - Transition metal oxides with a perovskite crystal structure exhibit a variety of physical properties associated with the lattice. Among these materials, strontium ruthenate (SrRuO3) displays unusually strong coupling of charge, spin and lattice degrees of freedom that can give rise to the photostriction, that is, changes in the dimensions of material due to the absorption of light. In this study, we observe a photon-induced strain as high as 1.12% in single domain SrRuO3, which we attribute to a nonequilibrium of phonons that are a result of the strong interaction between the crystalline lattice and electrons excited by light. In addition, these light-induced changes in the SrRuO3 lattice affect its electrical resistance. The observation of both photostriction and photoresistance in SrRuO3 suggests the possibility of utilizing the mechanical and optical functionalities of the material for next-generation optoelectronics, such as remote switches, light-controlled elastic micromotors, microactuators and other optomechanical systems.
UR - http://hdl.handle.net/10754/623294
UR - https://www.nature.com/articles/ncomms15108
UR - http://www.scopus.com/inward/record.url?scp=85038896542&partnerID=8YFLogxK
U2 - 10.1038/ncomms15108
DO - 10.1038/ncomms15108
M3 - Article
C2 - 28436430
SN - 2041-1723
VL - 8
JO - Nature Communications
JF - Nature Communications
IS - 1
ER -