Current‐induced control of the electron–nuclear spin system in semiconductors on a micrometer scale
Current‐induced control of the electron–nuclear spin system in semiconductors on a micrometer scale
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DOI：
10.1002/pssb.201350255
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发表时间：
2014-09
期刊：
影响因子：
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通讯作者：
Yuansen Chen;Jungtaek Kim;J. Puls;F. Henneberger;G. Bacher
中科院分区：
文献类型：
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作者：
Yuansen Chen;Jungtaek Kim;J. Puls;F. Henneberger;G. Bacher
证明了利用片上微线圈控制半导体中电子-核自旋系统的能力。在微米长度尺度上可以获得几十mT的电场，由于复杂线圈阻抗低，可以在亚秒时间尺度上切换。这使得人们可以(i)通过核磁共振在n - GaAs中操纵核自旋，（ii）控制CdSe/ZnSe量子点的超精细触发器速率。
The ability of using onchip microcoils to control the electron–nuclear spin system in semiconductors is demonstrated. Electrically generated magnetic fields of several tens of mT can be obtained on a micrometer length scale, which are switchable on a sub‐ns time scale due to the low complex coil impedance. This allows one to electrically (i) manipulate the nuclear spins by means of nuclear magnetic resonance in n‐GaAs and (ii) control the hyperfine flip‐flop rate in CdSe/ZnSe quantum dots.