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首页> 外文期刊>Journal of Low Temperature Physics >Experimental evidence for phase-locked states in stacked long Josephson junctions
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Experimental evidence for phase-locked states in stacked long Josephson junctions

机译：堆叠式长约瑟夫森结中锁相态的实验证据

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摘要

We fabricated and tested samples consisting of two long stacked Josephson 'unctions with direct access to the intermediate electrode, whose thickness is ^mailer tlian London penetration depth' Ax,.. The electrodes are patterned so ftat the junctions can be independently biased in the overlap configuration. report the observation of fluxon-antifluxon phase-locked states in zero ex-rnal magnetic field'and the measurements concerning the range of stability such states as a function of the bias currents. There is strong evidence for e existence of fluxon-antifluxon pairs even when one of the two junctions biased on the McCumber curve. We also report the observation of several Mutually phase-locked'states induced by large if signals (but not phdse-lbcked & (he rf field), that can be interpreted as fluxon-antifluxon oscillating in the stack.
机译：我们制作并测试了由两个长堆叠的约瑟夫森直角连接点组成的样品，这些连接点直接进入中间电极，厚度为^ mailer tlian London穿透深度Ax..。电极经过构图，因此在连接点处可以独立地偏置重叠部分组态。报告了在零外部磁场中观察到的磁通-反磁通锁相状态，以及关于这种状态的稳定范围与偏置电流之间关系的测量结果。有确凿的证据表明，即使两个连接点之一在McCumber曲线上有偏倚，也存在通量-反通量对。我们还报告了观察到由大的if信号（但不是phdse-lbcked＆（他的rf场））引起的几个互锁相状态，这可以解释为在堆栈中振荡的通量-反通量。

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