| 一维晶格模型的铁磁隧道结特性 |
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| 引用本文： | 沈耀国,李洪喆.一维晶格模型的铁磁隧道结特性[J].闽江学院学报,2011,32(5):20-22. |
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| 作者姓名： | 沈耀国 李洪喆 |
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| 作者单位： | 1. 闽江学院物理学与电子信息工程系,福建福州,350108
2. 哈尔滨理工大学机械动力工程学院,黑龙江哈尔滨,150080 |
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| 基金项目： | 闽江学院科技育苗项目(YKY07002) |
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| 摘 要： | 对一维晶格模型的铁磁/绝缘体/铁磁（FM/I/FM）隧道结中的平衡自旋流（ESC）进行了理论研究.利用非平衡格林函数,得到了ESC的严格表达式.分析得出,ESC起源于铁磁磁化的交换耦合,对电子器件的制造起着重要的指导作用.
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| 关 键 词： | 平衡自旋流 非平衡格林函数 电导 |
The properties of the ferromagnet tunnel junction in one-dimensional lattice model |
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| SHEN Yao-guo,LI Hong-ze.The properties of the ferromagnet tunnel junction in one-dimensional lattice model[J].Journal of Minjiang University,2011,32(5):20-22. |
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| Authors: | SHEN Yao-guo LI Hong-ze |
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| Institution: | SHEN Yao-guo1,LI Hong-ze2(1.Department of Physics and Electronic Information Engineering,Minjiang University,Fuzhou,Fujian 350108,China,2.College of Mechanical & Power Engineering,Harbin University of Science and Technology,Harbin,Helongjiang 150080,China) |
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| Abstract: | The equilibrium spin current(ESC) flowing through a ferromagnet / insulator barrier/ferromagnet(FM/I/FM) tunnel junction are studied theoretically in one-dimensional lattice model.Using the nonequilibrium Green function technique,an exact result of ESC is obtained.Analysis obtained,ESC originate in magnetized ferromagnetic exchange coupling,which is important in guiding the manufacture of eletronic devices. |
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| Keywords: | equilibrium spin current non-equilibrium Green function conductance |
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