Spin polarization of polaron in quasi-one dimensional organic system

被引:4
|
作者
Jiang, Hong [1 ]
Zhang, Chao [1 ]
Hu, Xuening [1 ]
Hu, Guichao [2 ]
Xie, Shijie [3 ]
机构
[1] Yantai Univ, Dept Phys, Yantai 264005, Peoples R China
[2] Shandong Normal Univ, Coll Phys & Elect, Jinan 250014, Peoples R China
[3] Shandong Univ, Sch Phys, State Key Lab Crystal Mat, Jinan 250100, Peoples R China
来源
MODERN PHYSICS LETTERS B | 2015年 / 29卷 / 02期
关键词
Organic spintronics; spin polarization; spin-orbit coupling; VIBRATIONAL-MODES; BIPOLARONS; SOLITONS; DEVICE;
D O I
10.1142/S0217984914502662
中图分类号
O59 [应用物理学];
学科分类号
摘要
The spin polarization of polarons in quasi-1D organic materials has been investigated by using the extended Su-Schrieffer-Heeger (SSH) model with spin-orbit coupling. Results show that the polaron is partly spin polarized, and that the electron-electron interaction and spin-orbit coupling compete with each other during the formation of spin polarization. The dependence of spin polarization on electron-phonon coupling is also revealed. Our results demonstrate that spin polarization is well correlated with polaron localization, thus providing useful guidance for exploring magnetic effects in organic materials.
引用
收藏
页数:9
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