Fedorets D, Gorelik L Y, Shekhter R I, Jonson M
Department of Physics, Göteborg University, SE-412 96 Göteborg, Sweden.
Phys Rev Lett. 2005 Jul 29;95(5):057203. doi: 10.1103/PhysRevLett.95.057203. Epub 2005 Jul 27.
We consider effects of the spin degree of freedom on the nanomechanics of a single-electron transistor (SET) containing a nanometer-sized metallic cluster suspended between two magnetic leads. It is shown that in such a nanoelectromechanical SET (NEM-SET) the onset of an electromechanical instability leading to cluster vibrations and shuttle transport of electrons between the leads can be controlled by an external magnetic field. Different stable regimes of this spintronic NEM-SET operation are analyzed. Two different scenarios for the onset of shuttle vibrations are found.
我们考虑了自旋自由度对一种单电子晶体管（SET）纳米力学的影响，该晶体管包含一个悬浮在两个磁性引线之间的纳米尺寸金属簇。结果表明，在这种纳米机电单电子晶体管（NEM - SET）中，导致簇振动以及电子在引线之间穿梭传输的机电不稳定性的起始可以由外部磁场控制。分析了这种自旋电子纳米机电单电子晶体管工作的不同稳定状态。发现了两种不同的穿梭振动起始情况。
