This is a Special Seminar sponsored by the Eddleman Quantum Institute

Abstract: In this invited seminar, I will describe properties and device applications of quasi-two-dimensional (2D) and quasi-one-dimensional (1D) van der Waals materials. The 2D van der Waals materials include transition metal dichalcogenides (TMD), which exfoliate or grow into quasi-2D atomic layers. The focus will be on 1T-TaS2, a unique quantum material with charge-density-wave (CDW) phases, observed even above room temperature. The 1D van der Waals materials include members of the transition metal trichalcogenide (TMT) family, which exfoliate or grow into bundles of quasi-1D atomic chains. I will discuss electric switching among various CDW quantum phases in 1T-TaS2 and possibilities of their device applications [1-3]; current carrying capacity of TaSe3 atomic bundles [4]; the use of 1D materials in composites for electromagnetic interference (EMI) shielding [5].

This work was supported, in part, by SRC, DOE, NSF DMREF and ONR VBFF.

[1] G. Liu, et al., Nature Nano, 11, 845 (2016); [2] A.K. Geremew, et al., Nanoscale, 11, 8380 (2019); [3] A. Mohammadzadeh, et al., Appl. Phys. Lett., 118, 093102 (2021); [4] M.A. Stolyarov, et al., Nanoscale, 8, 15774 (2016); [5] Z. Barani, et al., Advanced Materials, 33, 2007286 (2021).