Coherent Spin Amplification Using a Beam Splitter.
Coherent Spin Amplification Using a Beam Splitter.
复制标题
使用分束器进行相干自旋放大。
DOI:
10.1103/physrevlett.120.137701
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发表时间:
2018
影响因子:
8.6
通讯作者:
M. Pepper
中科院分区:
文献类型:
--
作者:
C. Yan;Sanjeev Kumar;K. Thomas;P. See;I. Farrer;D. Ritchie;J. Griffiths;G. Jones;M. Pepper
We report spin amplification using a capacitive beam splitter in n-type GaAs where the spin polarization is monitored via a transverse electron focusing measurement. It is shown that partially spin-polarized current injected by the emitter can be precisely controlled, and the spin polarization associated with it can be amplified by the beam splitter, such that a considerably high spin polarization of around 50% can be obtained. Additionally, the spin remains coherent as shown by the observation of quantum interference. Our results illustrate that spin-polarization amplification can be achieved in materials without strong spin-orbit interaction.
影响因子:
4
作者:
Yan C
通讯作者:
Yan C
影响因子:
38.3
作者:
Chuang, Pojen;Ho, Sheng-Chin;Chen, Tse-Ming
通讯作者:
Chen, Tse-Ming