Experimental Realization of a Quantum Spin Pump
作者： Susan K. Watson , R. M. Potok , C. M. Marcus , V. Umansky
DOI: 10.1103/PHYSREVLETT.91.258301
关键词:
摘要: We demonstrate the operation of a quantum spin pump based on cyclic radio-frequency excitation GaAs dot, including ability to pure without pumping charge. The device takes advantage bidirectional mesoscopic fluctuations pumped current, made dependent by application an in-plane Zeeman field. Spin currents are measured placing in focusing geometry with spin-selective collector.
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sci-hub.se 参考文章(32)
Y. Ohno, D. K. Young, B. Beschoten, F. Matsukura, H. Ohno, D. D. Awschalom, Electrical spin injection in a ferromagnetic semiconductor heterostructure Nature. ,vol. 402, pp. 790- 792 ,(1999) , 10.1038/45509
Wu Junling, Baigeng Wang, Jian Wang, Spin polarized parametric pumping arXiv: Condensed Matter. ,(2002)
SA Wolf, DD Awschalom, RA Buhrman, JM Daughton, von S von Molnár, ML Roukes, A Yu Chtchelkanova, DM Treger, Spintronics: A Spin-Based Electronics Vision for the Future Science. ,vol. 294, pp. 1488- 1495 ,(2001) , 10.1126/SCIENCE.1065389
L. P. Kouwenhoven, A. T. Johnson, N. C. van der Vaart, C. J. P. M. Harmans, C. T. Foxon, Quantized current in a quantum-dot turnstile using oscillating tunnel barriers. Physical Review Letters. ,vol. 67, pp. 1626- 1629 ,(1991) , 10.1103/PHYSREVLETT.67.1626
L. P. Kouwenhoven, S. Jauhar, J. Orenstein, P. L. McEuen, Y. Nagamune, J. Motohisa, H. Sakaki, Observation of Photon-Assisted Tunneling through a Quantum Dot Physical Review Letters. ,vol. 73, pp. 3443- 3446 ,(1994) , 10.1103/PHYSREVLETT.73.3443
Eduardo R. Mucciolo, Claudio Chamon, Charles M. Marcus, Adiabatic quantum pump of spin-polarized current. Physical Review Letters. ,vol. 89, pp. 146802- 146802 ,(2002) , 10.1103/PHYSREVLETT.89.146802
Tomosuke Aono, Adiabatic spin pumping through a quantum dot with a single orbital level Physical Review B. ,vol. 67, pp. 155303- ,(2003) , 10.1103/PHYSREVB.67.155303
H Pothier, P Lafarge, C Urbina, D Esteve, M. H Devoret, Single-Electron Pump Based on Charging Effects EPL. ,vol. 17, pp. 249- 254 ,(1992) , 10.1209/0295-5075/17/3/011
P. W. Brouwer, Scattering approach to parametric pumping Physical Review B. ,vol. 58, ,(1998) , 10.1103/PHYSREVB.58.R10135
R. M. Potok, J. A. Folk, C. M. Marcus, V. Umansky, Detecting spin-polarized currents in ballistic nanostructures. Physical Review Letters. ,vol. 89, pp. 266602- ,(2002) , 10.1103/PHYSREVLETT.89.266602