The thermal transport in Joesphson junctions, particularly, based on topological insulators (TIs), has not been extensively studied so far. Herein, we theoretically investigate the magnetoanisotropic thermal transport in a TI-based Josephson hybrid structure with a ferromagnetic insulator sandwiched between two superconductors (SCs). It is shown that the thermal conductance and current both are considerably sensitive to the orientation and magnitude of the exchange field. In particular, the negative differential thermal conductance is exhibited, which is modulated by the exchange field. More interestingly, zero-energy Andreev bound states are confirmed with the help of the thermal conductance, which in turn demonstrates itself to be of significance in the thermal transport. It is expected that these findings could have potential applications for the energy control in various hybridized mesoscopic systems.

迄今为止，Joesphson 结中的热传输，特别是基于拓扑绝缘体 (TI) 的热传输尚未得到广泛研究。在此，我们从理论上研究了基于 TI 的约瑟夫森混合结构中的磁各向异性热传输，其中铁磁绝缘体夹在两个超导体 (SC) 之间。结果表明，热导率和电流都对交换场的方向和大小相当敏感。特别地，呈现出负差热导，这是由交换场调制的。更有趣的是，零能安德列夫束缚态在热导的帮助下得到证实，这反过来证明了它在热传输中的重要性。