Establishing ohmic contact to van der Waals semiconductors such as MoS2 is crucial to unlocking their full potential in next-generation electronic devices. Encapsulation of few layer MoS2 with hBN preserves the material's electronic properties but makes electrical contacts more challenging. Progress toward high quality edge contact to encapsulated MoS2 has been recently reported. Here, we evaluate a contact methodology using sputtered MoRe, a Type II superconductor with a relatively high critical field and temperature commonly used to induce superconductivity in graphene. We find that the contact transparency is poor and that the devices do not support a measurable supercurrent down to 3 Kelvin, which has ramifications for future fabrication recipes.
@article{arxiv.2101.06194,
title = {One-Dimensional Edge Contact to Encapsulated MoS2 with a Superconductor},
author = {A. Seredinski and E. G. Arnault and V. Z. Costa and L. Zhao and T. F. Q. Larson and K. Watanabe and T. Taniguchi and F. Amet and A. K. M. Newaz and G. Finkelstein},
journal= {arXiv preprint arXiv:2101.06194},
year = {2021}
}