Dirac and Weyl semimetals react to position-dependent and time-dependent perturbations,
such as strain, as if subject to emergent electromagnetic fields, known as pseudo-fields …

Floquet engineering, the concept of tailoring a system by a periodic drive, is increasingly
exploited to design and manipulate topological phases of matter. In this work we study …

The recent discovery of triply degenerate points (TDPs) in topological materials has opened
a new perspective toward the realization of novel quasiparticles without counterparts in …

We prove the existence of higher-order topological insulators with protected chiral hinge
modes in quasi-two-dimensional systems made out of coupled layers stacked in an …

In search of materials with three-dimensional flat band dispersions, using ab initio
computations we investigate how topological phases evolve as a function of hydrostatic …

Topological crystalline phases in electronic structures can be generally classified using the
spatial symmetry characters of the valence bands and map** them onto appropriate …

We show that in conventional one-dimensional insulators excess charges created close to
the boundaries of the system can be expressed in terms of the Berry phases associated with …

Dual topological materials are unique topological phases that host coexisting surface states
of different topological nature on the same or on different material facets. Here, we show that …

Time-reversal invariant Dirac and Weyl semimetals in three dimensions (3D) can host open
Fermi arcs and spin-momentum locking Fermi loops on the surfaces. We find that when they …

For spinful systems with spin 1/2, it is generally believed that P and T invariant strong and
second-order topologies exist in four band and eight band systems, respectively. Here, by …