Procopios C. Constantinou

Introduction Click to copy section linkSection link copied! Solar-driven water splitting converts light into chemical energy, which is consequently stored in the form of O2 and H2. (1) This sustainable generation of clean hydrogen fuel bears significant potential for nonfossil energy production in the future. (2−4) However, the efficiency of the involved photoactive materials must be improved for large-scale use.

Abstract Altermagnetism represents an emergent collinear magnetic phase with compensated order and an unconventional alternating even-parity wave spin order in the non-relativistic band structure. We investigate directly this unconventional band splitting near the Fermi energy through spin-integrated soft X-ray angular resolved photoemission spectroscopy.

Artificial lattices constructed from individual dopant atoms within a semiconductor crystal hold promise to provide novel materials with tailored electronic, magnetic, and optical properties. These custom engineered lattices are anticipated to enable new, fundamental discoveries in condensed matter physics and lead to the creation of new semiconductor technologies including analog quantum simulators and universal solid-state quantum computers.