Aharonov-Bohm oscillation of resistance observed in a ferromagnetic Fe-Ni nanoring
Aharonov-Bohm oscillation of resistance observed in a ferromagnetic Fe-Ni nanoring
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DOI：
10.1063/1.1492303
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发表时间：
2002-07-08
影响因子：
4
通讯作者：
Miyajima, H
中科院分区：
文献类型：
--
作者：
Kasai, S;Niiyama, T;Miyajima, H
在低于100 mK的极低温度下测量了内径为420 nm、外径为500 nm的铁磁性Fe-Ni纳米环的磁电阻。当磁场施加到环上时，磁阻表现出振荡，其周期根据磁场方向而变化。这证明了铁磁纳米环中传导电子的Aharonov-Bohm效应。振荡的幅度可以从系统尺寸和传导电子的相位相干长度之间的竞争的观点来考虑。(C)2002年美国物理学会。
The magnetoresistance of a ferromagnetic Fe-Ni nanoring with 420 nm in inner diameter and 500 nm in outer diameter was measured at very low temperatures below 100 mK. When a magnetic field is applied to the ring, the magnetoresistance exhibits oscillations whose period varies according to the field direction. This demonstrates the Aharonov-Bohm effect of the conduction electrons in the ferromagnetic nanoring. The amplitude of the oscillations can be regarded from the viewpoint of competition between the system size and the phase coherence length of the conduction electrons. (C) 2002 American Institute of Physics.