Topological electronic materials such as bismuth selenide, tantalum arsenide and sodium
bismuthide show unconventional linear response in the bulk, as well as anomalous gapless …

Broken inversion symmetry in Janus structures leads to superior physical properties due to
the emergence of a non-zero dipole moment. Ga 2 Ge 2 XY (X, Y= S, Se, Te) monolayers …

Two-dimensional materials, especially graphene-like emerging single-element materials
two-dimensional (2D) Xenes, have attracted great research interest since the advent of the …

GaGeTe is a layered van der Waals material composed of germanene and GaTe sublayers
that has been recently predicted to be a basic Z 2 topological semimetal. To date, only one …

Jacutingaite family, a family of naturally occurring exfoliable minerals (Pt 2 HgSe 3 and Pd 2
HgSe 3) discovered in Brazil, is recently predicted to be the very first large-gap Kane-Mele …

GaGeTe is a layered topological semimetal that has been recently found to exist in at least
two different polytypes, α-GaGeTe (R 3¯ m) and β-GaGeTe (P 6 3 mc). Here we report a joint …

Highlights•Predicted an excellent single-layer GaGeTe and its lattice vibrational modes and
phonon thermal conductivity.•A 1g and E g Raman modes distinct responses to strain …

Stanene, a quasi-two-dimensional honeycomb-like structure of tin belonging to the family of
2D-Xenes (X= Si, Ge, Sn) has recently been reported to show promising electronic, optical …

Exploring experimentally feasible two-dimensional (2D) films with high carrier mobility and
tunable band structure is one key to developing next-generation nanodevices. Motivated by …

We report experimental and theoretical evidence that GaGeTe is a basic Z 2 topological
semimetal with three types of charge carriers: bulk-originated electrons and holes as well as …