论文标题
零偏置峰的高原区域以内的量化电导值的5％$ 2E^2/h $
Plateau regions for zero-bias peaks within 5% of the quantized conductance value $2e^2/h$
论文作者
论文摘要
预计探测隔离的Majorana零模式将显示在零温度下以$ 2E^2/h $定量的隧道电导。在实验上，预期零偏置峰（ZBP），其高度应与相关参数调整保持稳健，形成量化的平台。在这里，我们报告了在薄的Inas-Al Hybrid纳米线设备中观察到的大型ZBP。 ZBP高度可以通过清除门电压和磁场来接近$ 2E^2/h $，大部分在$ 5 \％$ b的公差之内。我们进一步绘制了相图并确定相空间中的两个平台区域。尽管存在混乱和量子点，但我们的结果还是朝着建立Majorana零模式迈出的一步。
Probing an isolated Majorana zero mode is predicted to reveal a tunneling conductance quantized at $2e^2/h$ at zero temperature. Experimentally, a zero-bias peak (ZBP) is expected and its height should remain robust against relevant parameter tuning, forming a quantized plateau. Here, we report the observation of large ZBPs in a thin InAs-Al hybrid nanowire device. The ZBP height can stick close to $2e^2/h$, mostly within $5\%$ tolerance, by sweeping gate voltages and magnetic field. We further map out the phase diagram and identify two plateau regions in the phase space. Despite the presence of disorder and quantum dots, our result constitutes a step forward towards establishing Majorana zero modes.
