The past decade has witnessed a surge of interest in exploring emergent particles in
condensed matter systems. Novel particles, emerged as excitations around exotic band …

Nowadays, it is recognized that semiconductors are prospective candidates for promising
thermoelectric materials and the gapless topological phonon modes can result in a high …

The realization of Weyl systems with the minimum nonzero number of Weyl points (WPs)
and full spin polarization remains challenging in topology physics and spintronic. In this …

In recent years, charge-two Weyl point phonons (WPPs) have attracted increasing attention.
Charge-two WPPs not only provide a new platform for realizing phonon-based …

Multifold degenerate fermions in electronic structures of topological materials give rise to
many interesting physics properties. Among them, three-, six-, and eightfold degenerate …

Density functional theory (DFT) is one of the most widely used methods in the field of
computational materials and has become an important research method for photocatalytic …

Topological semimetal states having the minimal number, ie, only a single pair, of Weyl
points are desirable for the study of effects associated with chiral topological charges. So far …

Nodal line states in electronic systems can be classified based on the order of dispersion
around a band degeneracy (ie, linear, quadratic, or cubic) and the various slopes of crossing …

In three-dimensional (3D) crystals, emergent particles arise when two or multiple bands
contact and form degeneracy (band crossing) in the Brillouin zone. Recently a complete …

The realization of multi-Weyl systems with the minimum nonzero number of Weyl points and
the maximum charge number remains challenging in topology physics. In this work, based …