标题： 用于自旋极化扫描探针显微镜的反铁磁MnNi探针 显示英文标题

标题： Antiferromagnetic MnNi tips for spin-polarized scanning probe microscopy

摘要： 自旋极化扫描隧道显微镜（SP-STM）以原子分辨率测量隧道磁阻（TMR）。 尽管已经开发了多种实现SP探针的方法，但每种方法在制造、性能和允许的操作条件方面都有所限制。 在本研究中，我们介绍了由市售的反铁磁$\rm{Mn_{88}Ni_{12}}$薄膜制成的SP-STM探针的制备和使用。 这些探针本身具有SP特性，这对于在零场极限下探索磁现象很有吸引力。 探针材料相对延展且易于蚀刻。 我们评估了探针的传统STM和光谱性能，并通过测量在MgO/Ag(100)上的钬单原子磁体的双态切换来证明其自旋灵敏度。 显示英文摘要

摘要： Spin-polarized scanning tunneling microscopy (SP-STM) measures tunnel magnetoresistance (TMR) with atomic resolution. While various methods for achieving SP probes have been developed, each is limited with respect to fabrication, performance, and allowed operating conditions. In this study, we present the fabrication and use of SP-STM tips made from commercially available antiferromagnetic $\rm{Mn_{88}Ni_{12}}$ foil. The tips are intrinsically SP, which is attractive for exploring magnetic phenomena in the zero field limit. The tip material is relatively ductile and straightforward to etch. We benchmark the conventional STM and spectroscopic performance of our tips and demonstrate their spin sensitivity by measuring the two-state switching of holmium single atom magnets on MgO/Ag(100).