Topological states of matter possess bulk electronic structures categorized by topological
invariants and edge/surface states due to the bulk-boundary correspondence. Topological …

Weyl fermions as emergent quasiparticles can arise in Weyl semimetals (WSMs) in which
the energy bands are nondegenerate, resulting from inversion or time-reversal symmetry …

An underestimation of the fundamental band gap values by the density functional theory
within the local density approximation and associated approaches is a well-known …

Weyl semimetal is a unique topological phase with topologically protected band crossings in
the bulk and robust surface states called Fermi arcs. Weyl nodes always appear in pairs with …

Materials with the ideal case of a single pair of Weyl points (WPs) are highly desirable for
elucidating the unique properties of Weyl fermions. EuC d 2 A s 2 is an antiferromagnetic …

We report theoretical and experimental evidence that EuCd 2 As 2 in magnetic fields greater
than 1.6 T applied along the c axis is a Weyl semimetal with a single pair of Weyl nodes. Ab …

Analogs of the elementary particles, Dirac fermions in condensed matter, have received
extensive attention for both scientific interest and device applications. In this Rapid …

EuCd 2 As 2 is a magnetic semimetal that has the potential of manifesting nontrivial
electronic states, depending on its low temperature magnetic ordering. Here, we report the …

EuCd 2 As 2 is now widely accepted as a topological semimetal in which a Weyl phase is
induced by an external magnetic field. We challenge this view through firm experimental …

As exemplified by the growing interest in the quantum anomalous Hall effect, the research
on topology as an organizing principle of quantum matter is greatly enriched from the …