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Description
Bulk T$_d$-MoTe$_2$ is a type-II Weyl semimetal and becomes superconducting at a critical temperature of $T_c = 0.1,\text{K}$. Remarkably, superconductivity becomes far more robust in the 2D-limit, contrary to the trend in ultrathin metal-films. Recent transport measurements reported an increase in $T_c$ for decreasing thickness, with $T_c = 7.6,\text{K}$ in the monolayer. The reasons for the strong increase in $T_c$ remains unknown. Here, we present the electronic structure of exfoliated mono-, bi- and trilayer T$_d$-MoTe$_2$ probed by ARPES. The electron pocket of monolayer MoTe$_2$ shows signatures of strong coupling to optical phonons with $\lambda\approx 1.5$. In bi- and trilayer MoTe$_2$ electron-phonon coupling is weaker consistent with thickness dependence of $T_c$.
