Recent discoveries of two-dimensional (2D) superconductors have uncovered various new aspects of physical properties including vortex matter. In this paper, we report transport properties and a dynamical phase diagram at zero magnetic field in ion-gated MoS2. In addition to the universal jump in the current-voltage characteristic showing unambiguous evidence of the Berezinskii-Kosterlitz-Thouless (BKT) transition, we observed multiple peaks in the temperature- and current-derivative of the electrical resistance, based on which a dynamical phase diagram in the current-temperature plane was constructed. We found current-induced dynamical states of vortex-antivortex pairs, containing that with the phase slip line. Also, we present a global phase diagram of vortices in gated MoS2 which captures the nature of vortex matter of clean 2D superconductors.

中文翻译：

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门控MoS2中2D超导的动态涡旋相位图

二维（2D）超导体的最新发现已经发现了包括涡旋物质在内的各种物理特性的新方面。在本文中，我们报告了离子门控MoS2在零磁场下的传输性质和动力学相图。除了电流-电压特性的普遍跃迁表明Berezinskii-Kosterlitz-Thouless（BKT）跃迁的明确证据外，我们还观察到电阻的温度和电流导数上的多个峰值，基于该峰值，动态相绘制了当前温度平面中的图表。我们发现了涡流-反涡流对的电流诱导动力学状态，其中包含相移线。此外，我们提出了门控MoS2中涡旋的整体相位图，该相位图捕获了干净的2D超导体的涡旋物质的性质。