通过耦合双量子点的自旋极化输运  

Spin-Polarized Transport through a Coupled Double-Dot

作　　者：张永梅[1] 于慧[1] 

机构地区：[1]中北大学理学院物理系,山西太原030051

出　　处：《装备制造技术》2008年第2期39-41,共3页Equipment Manufacturing Technology

摘　　要：从理论上提出了一种新型的能够产生自旋极化电流的装置。流经该装置的电荷流和自旋流可以由驱动场的频率以及外磁场控制。通过对该装置自旋极化电流的数值分析发现,通过该装置的自旋极化电流能够产生非常有趣的反共振行为。A new type of design is proposed that generates the spin-polarized current theoretically. The spin and charge currents are controllable by adjusting the frequency of driving field and the magnitude of the magnetic field. An interesting resonance phenomenon of the spin current is qualitatively explained through the numerical analysis.

关 键 词：介观系统 自旋极化电流 共振 

分 类 号：O488[理学—固体物理]