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Inspired by the magnificent features of two-dimensional (2D) materials whicharoused much of the interest in recent materials science research, we studyPT-symmetric 2D Weyl semimetal (WSM) to reveal the broadband and wide-angleinvisible configurations in a PT-symmetric optical slab system. Desiredunidirectional reflectionlessness and invisibility phenomena is obtained by theoptimal control of system parameters. We unravel the mystery of broadband andwide-angle invisibility in regular slab materials with finite refractiveindices by means of the plenary expressions. We show that materials whoserefractive indices relatively small (usually around $\eta =1$) give rise toquite a lot broadband and wide-angle (almost all incidence angles) invisibleconfigurations. This is not observed with any 2D material other than 2D WSMs.Our findings suggest a concrete expedience to experimental realizations in thisdirection.

Broadband and Wide-Angle Invisibility with PT-Symmetric 2D-Weyl Semimetal