2020/08/14 by Tu, Xin-Hai, Liu, Peng-Fei, Yin, Wen +3
#FOS: Physical sciences #Mesoscale and Nanoscale Physics (cond-mat.mes-hall) #Superconductivity (cond-mat.supr-con)
paper · doi:10.48550/arxiv.2008.06260
The weak interlayer Van Der Waals material \beta-Bi2Pd has recently been established as a strong topological superconductor candidate with unconventional spin-triplet pairing and Majorana zero modes at vortices. In this letter, we study the topological characters and the superconducting pairing, which are still obscure in monolayer \beta-Bi2Pd, in light of our effective theoretical model. We find that the non-Rashba spin-orbital coupling plays a critical role in realizing and tuning various novel topological natures. In particular, the spin-triplet p-wave superconducting pairing with Majorana zero mode is revealed in monolayer \beta-Bi2Pd. Our studies deepen the understanding of topology and superconductivity in monolayer \beta-Bi2Pd and indicate it is a promising platform for achieving low-dimentional topological superconductivity.