论文标题

难以捉摸的高-TC超级电导体

The Elusive High-Tc Superinductor

论文作者

Srivastava, Yogesh Kumar, Gupta, Manoj, Manjappa, Manukumara, Agarwal, Piyush, Lesueur, Jérôme, Singh, Ranjan

论文摘要

Ginzburg-landau(GL)参数是Abrikosov在I型超高级超导体中发现的量子涡流的基础1964年,J。Pearl预测了涡流散布到珍珠长度的涡流中缓慢衰减的$(1/r^2)$场,$ p_l =2λ_l^2/t $,在厚度$ t <λ_l$的超导胶片中。然而,他的典型理论未能预测巨型动力学(GKI)的存在,这是由于涡流的扩大筛选电流引起的。在这里,我们在$ high-t_c $ metaSurface中发现了巨大的动力电感,这是因为涡旋筛选超级电流从$λ_l$扩展到超薄膜中的$λ_l$升至14 $λ_l$ $λ_l/7 $厚度的超量量的量子超过量的量子,这导致了超过量的量子,这导致了超过量的量子。 $ r_q = h/(2e)^2 =6.47kΩ$乘33%。我们的发现介绍了新的$高-T_C $超导体电子,光子和量子设备,该设备通过在珍珠长度尺度上设计的元图启用,在量子电路,计量和单光子运动动力电感上探测器提供了新的应用。

Ginzburg-Landau (GL) parameters formed the basis for Abrikosov discovery of the quantum vortex of a supercurrent in type-II superconductor with a normal core of size $ξ$, the superconductor coherence length and circulating supercurrent induced magnetic field diverging as $log(1/r)$ from the core with a decay length of the London penetration depth, $λ_L.$ In 1964, J. Pearl predicted the slowly decaying $(1/r^2)$ field around a vortex spreading out to Pearl length, $P_L=2λ_L^2/t$, in a superconductor film of thickness $t < λ_L$. However, his quintessential theory failed to predict the existence of giant kinetic inductance (GKI) that arises from the enlarged screening currents of the vortex. Here, we discover giant kinetic inductance in a $high-T_c$ metasurface due to the 1400% expansion of the vortex screening supercurrent from $λ_L$ to 14$λ_L$ in ultrathin film meta-atom of $λ_L/7$ thickness, which leads to the emergence of terahertz superinductance possessing quantum impedance exceeding the resistance quantum limit of $R_Q=h/(2e)^2 =6.47 kΩ$ by 33%. Our discovery presents a new class of $high-T_c$ superconductor electronic, photonic, and quantum devices enabled through metasurface designed at the Pearl length scales, providing novel applications in quantum circuitry, metrology, and single photon kinetic inductance detectors.

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