论文标题
在微波加热下的局部双疗法，用于空间映射无序的超导体
Local bistability under microwave heating for spatially mapping disordered superconductors
论文作者
论文摘要
从理论上讲，我们从纳米金属尖端从近场微波辐射加热的强烈无序的超导层。微波加热准颗粒，该准颗粒通过声子发射冷却，并从加热区域传导。由于在尖端下具有两个稳定的电子温度状态的双稳定性，因此可以调节加热以诱导亚微米尺寸的正常区域，该区域由高温和低温状态之间的尖锐域壁界定。我们将其作为局部探针，以访问现有方法的不同物理，例如，以绘制层中不均匀的超流体流量。双重性诱导的域壁可以显着改善其空间分辨率。
We theoretically study a strongly disordered superconducting layer heated by near-field microwave radiation from a nanometric metallic tip. The microwaves heat up the quasiparticles, which cool by phonon emission and conduction away from the heated area. Due to a bistability with two stable states of the electron temperature under the tip, the heating can be tuned to induce a submicrometer-sized normal region bounded by a sharp domain wall between high- and low-temperature states. We propose this as a local probe to access different physics from existing methods, for example, to map out inhomogeneous superfluid flow in the layer. The bistability-induced domain wall can significantly improve its spatial resolution.
