Fundamental Theory of Spin Transport and Design of Novel Devices

自旋输运基础理论与新型器件设计

• 批准号: 21560001
• 负责人: KONDO Kenji
• 金额: $ 3万
• 依托单位: Hokkaido University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2009
• 资助国家: 日本
• 起止时间: 2009 至 2011
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-21560001/
• 关键词: スピントロニクス; 輸送理論; 非平衡グリーン関数; スピン軌道相互作用; 物性理論; スピン・軌道相互作用; Beyond CMOS

In this study, we have proposed spin quantum cross devices, which consist of organic molecules sandwiched between two ferromagnetic metals whose edges are crossed. We have theoretically investigated the spin transport characteristics of them using non-equilibrium Green's function. Also, we have made a prototype-spin quantum cross device and verified the theory compared with the experimental results. As a result, we have successfully obtained a general formula for spin transport using Anderson Hamiltonian, and succeeded in realizing a spin quantum cross device experimentally. We have also found that the developed theory predicts the experimental results quantitatively.

在这项研究中，我们提出了自旋量子交叉器件，它由有机分子夹在两个边缘交叉的铁磁性金属之间组成。我们利用非平衡格林函数从理论上研究了它们的自旋输运特性。制作了自旋量子交叉器件原型，并与实验结果进行了对比验证。结果，我们成功地利用安德森-哈密顿量获得了自旋输运的一般公式，并成功地在实验上实现了自旋量子交叉器件。我们还发现，所建立的理论可以定量地预测实验结果。

项目成果

Spin Transport in Ferromagnet/Semiconductor/Ferromagnet Structures with Cubic Dresselhaus Spin-Orbit-Interaction

具有立方 Dresselhaus 自旋轨道相互作用的铁磁体/半导体/铁磁体结构中的自旋输运

• DOI: 10.1063/1.3677799
• 发表时间: 2012
• 期刊: Journal of Applied Physics
• 影响因子: 3.2
• 作者: K. Marumoto;T. Yamanari and M. Yabusaki;近藤憲治
• 通讯作者: 近藤憲治

Theoretical and Experimental Results of a Large Thermoelectric Voltage at Point Contacts of Spin Quantum Cross Structure Devices

自旋量子交叉结构器件点接触大热电电压的理论与实验结果

• 发表时间: 2010
• 作者: K.Kondo;H.Kaiju;A.Ishibashi
• 通讯作者: A.Ishibashi

Surface and Interface Structures and Magnetic Properties of Ni and Ni75Fe25 Thin Films on Polyethylene Naphthalate Organic Substrates

聚萘二甲酸乙二醇酯有机基底上 Ni 和 Ni75Fe25 薄膜的表面和界面结构及磁性能

• DOI: 10.3131/jvsj2.54.203
• 发表时间: 2011
• 期刊: Journal of the Vacuum Society of Japan
• 作者: 海住英生;バシールヌブラ;阿部太郎;近藤憲治;平田秋彦;石丸学;弘津禎彦;石橋晃
• 通讯作者: 石橋晃

Ni thin films vacuum-evaporated on polyethylene naphthalate substrates with and without the application of magnetic field

• DOI: 10.1016/j.apsusc.2008.10.036
• 发表时间: 2009-01-01
• 期刊: APPLIED SURFACE SCIENCE
• 影响因子: 6.7
• 作者: Kaiju, Hideo;Ono, Akito;Hirotsu, Yoshihiko
• 通讯作者: Hirotsu, Yoshihiko

Longitudinal ana transverse exciton-spin relaxation in a single InAsP quantum dot embedded inside a standing InP nanowire using photoluminescence spectroscopy

使用光致发光光谱法对嵌入直立 InP 纳米线内的单个 InAsP 量子点进行纵向和横向激子自旋弛豫

• DOI: 10.1103/physrevb.85.075324
• 发表时间: 2012
• 期刊: Physical Review B
• 影响因子: 3.7
• 作者: J.M. Park;S. Nakashima;M. Sohgawa;T. Kanashima;and M. Okuyama;高地満寿雄，山上紘平，高橋一匡，佐々木徹，菊池崇志，加藤有行;笹倉弘理
• 通讯作者: 笹倉弘理