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.
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页数：9
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