Spin-Flip Process of Polarons in Conjugated Polymers with Magnetic Impurities
ZHAO Hui1,2, ZHANG Xu-Ming3, AN Zhong2,4, CHEN Yu-Guang1, WU Chang-Qin2
1Department of Physics, Tongji University, Shanghai 2000922Department of Physics and Surface Physics Laboratory, Fudan University, Shanghai 2004333National Laboratory for the Infrared Physics, Shanghai Institute of Technology Physics, Chinese Academy of Sciences, Shanghai 2000834College of Physics, Hebei Normal University, Shijiazhuang 050016
Spin-Flip Process of Polarons in Conjugated Polymers with Magnetic Impurities
ZHAO Hui1,2, ZHANG Xu-Ming3, AN Zhong2,4, CHEN Yu-Guang1, WU Chang-Qin2
1Department of Physics, Tongji University, Shanghai 2000922Department of Physics and Surface Physics Laboratory, Fudan University, Shanghai 2004333National Laboratory for the Infrared Physics, Shanghai Institute of Technology Physics, Chinese Academy of Sciences, Shanghai 2000834College of Physics, Hebei Normal University, Shijiazhuang 050016
摘要Being driven by an external electric field, a polaron carrying both spin 1/2 and charge ±e moves at a constant speed in a polymer chain. When the polaron passes through a specific site, which couples to a magnetic impurity via spin-exchange interactions, its spin undergoes a spin-flip process if it is antiparallel to the impurity spin. Our numerical simulation shows that (a) a swap-like operation is performed between the polaron and impurity during the scattering process (b) polarons might be good candidates to be information carriers in the molecular scale.
Abstract：Being driven by an external electric field, a polaron carrying both spin 1/2 and charge ±e moves at a constant speed in a polymer chain. When the polaron passes through a specific site, which couples to a magnetic impurity via spin-exchange interactions, its spin undergoes a spin-flip process if it is antiparallel to the impurity spin. Our numerical simulation shows that (a) a swap-like operation is performed between the polaron and impurity during the scattering process (b) polarons might be good candidates to be information carriers in the molecular scale.
ZHAO Hui;ZHANG Xu-Ming;AN Zhong;CHEN Yu-Guang;WU Chang-Qin. Spin-Flip Process of Polarons in Conjugated Polymers with Magnetic Impurities[J]. 中国物理快报, 2009, 26(8): 87203-087203.
ZHAO Hui, ZHANG Xu-Ming, AN Zhong, CHEN Yu-Guang, WU Chang-Qin. Spin-Flip Process of Polarons in Conjugated Polymers with Magnetic Impurities. Chin. Phys. Lett., 2009, 26(8): 87203-087203.
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