论文标题
电子隧穿传输和磁场通过超导体 - 基塔维层 - 驱动器连接
Electron Tunneling Transport and Magnetic Field Modulation through a Superconductor-Kitaev layer-Superconductor Junction
论文作者
论文摘要
我们介绍了具有单个铁磁（FM）Kitaev层屏障的超导（SC）约瑟夫森连接的电子隧道传输及其磁场调制。我们发现，在H = 0时，约瑟夫森电流在K/δ= 3.4和10时显示两个峰，这源于SC间隙边界与Spinon Flat Bands之间以及SC间隙边缘和Spinon分散带之间的共振隧道。随着磁场的增加，在临界磁场HC =GμBHC/δ= 0.03K/δ处逐渐减小并突然降到一个平台，因为所施加的场抑制了状态的旋转密度（DOS）（DOS）曾经在Kitaev层进入极性FM相。这些结果铺平了一种测量基塔夫和其他自旋液体材料的Spinon或Majorana fermion Dos的新方法。
We present the electron tunneling transport and its magnetic field modulation of a superconducting (SC) Josephson junction with a barrier of single ferromagnetic (FM) Kitaev layer. We find that at H = 0, the Josephson current IS displays two peaks at K/Δ = 3.4 and 10, which stem from the resonant tunnelings between the SC gap boundaries and the spinon flat bands and between the SC gap edges and the spinon dispersive bands, respectively. With the increasing magnetic field, IS gradually decreases and abruptly drops to a platform at the critical magnetic field hc = gμBHc/Δ = 0.03K/Δ, since the applied field suppresses the spinon density of states (DOS) once upon the Kitaev layer enters the polarized FM phase. These results pave a new way to measure the spinon or Majorana fermion DOS of the Kitaev and other spin liquid materials.
