A superconducting reversible rectifier that controls the motion of magnetic flux quanta
A superconducting reversible rectifier that controls the motion of magnetic flux quanta
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DOI：
10.1126/science.1090390
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发表时间：
2003-11-14
期刊：
影响因子：
56.9
通讯作者：
Vicent, JL
中科院分区：
文献类型：
--
作者：
Villegas, JE;Savel'ev, S;Vicent, JL
我们制作了一种控制在纳米三角钉扎势阵列上生长的Nb超导薄膜中磁通量子运动的器件。可控直肌。涡旋运动的阳离子是由于所制备的磁钉扎中心的不对称性造成的。旋涡方向的反转可以用捕获在磁性纳米结构上的旋涡与间隙旋涡之间的相互作用来解释。外加磁场和输入电流强度可以调节整流涡流的极性和大小。对棘轮系统进行了理论解释和建模，并考虑了粒子间的相互作用。
We fabricated a device that controls the motion of flux quanta in a niobium superconducting film grown on an array of nanoscale triangular pinning potentials. The controllable recti. cation of the vortex motion is due to the asymmetry of the fabricated magnetic pinning centers. The reversal in the direction of the vortex flow is explained by the interaction between the vortices trapped on the magnetic nanostructures and the interstitial vortices. The applied magnetic field and input current strength can tune both the polarity and magnitude of the rectified vortex flow. Our ratchet system is explained and modeled theoretically, taking the interactions between particles into consideration.