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Two-dimensional magnetic materials (2DMM) are significant for studies on thenature of 2D long range magnetic order but also for future spintronic devices.Of particular interest are 2DMM where spins can be manipulated by electricalconduction. Whereas Cr$_2$Si$_2$Te$_6$ exhibits magnetic order in few-layercrystals, its large band gap inhibits electronic conduction. Here we show thatthe defect-induced short-range crystal order in Cr$_2$Si$_2$Te$_6$ on thelength scale below 0.6 nm induces substantially reduced band gap and robustsemiconducting behavior down to 2 K that turns to metallic above 10 GPa. Ourresults will be helpful to design conducting state in 2DMM and call forspin-resolved measurement of the electronic structure in exfoliated ultrathincrystals.

Short-range Crystalline Order-Tuned Conductivity in Cr$_2$Si$_2$Te$_6$ van der Waals Magnetic Crystals