摘要Using a nonadiabatic evolution method, we investigate the spin-flip process of polaron in polymers with a magnetic impurity. Our results show that when the spin orientation of this impurity is fixed to be perpendicular to the spin of polaron (θ=π/2), the magnetic impurity causes a spin-flip process. The probability of the spin-flip increases with the increase of exchange integral J up to about 0.35eV and then decreases with the increase of J. In the case J is fixed while the spin orientation is adjustable, we find the probability of the spin-flip varies with the impurity orientation and reaches a maximum value at θ=π/2.
Abstract：Using a nonadiabatic evolution method, we investigate the spin-flip process of polaron in polymers with a magnetic impurity. Our results show that when the spin orientation of this impurity is fixed to be perpendicular to the spin of polaron (θ=π/2), the magnetic impurity causes a spin-flip process. The probability of the spin-flip increases with the increase of exchange integral J up to about 0.35eV and then decreases with the increase of J. In the case J is fixed while the spin orientation is adjustable, we find the probability of the spin-flip varies with the impurity orientation and reaches a maximum value at θ=π/2.
CHEN Mei-Juan;YAN Yong-Hong;WU Chang-Qin. Spin-Flip of Polaron in Polymers with a Magnetic Impurity[J]. 中国物理快报, 2007, 24(6): 1690-1692.
CHEN Mei-Juan, YAN Yong-Hong, WU Chang-Qin. Spin-Flip of Polaron in Polymers with a Magnetic Impurity. Chin. Phys. Lett., 2007, 24(6): 1690-1692.
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2007, Vol. 24 
