Transition-Metal-Related Quantum Emitters in Wurtzite AlN and GaN.

ABSTRACT: Transition-metal centers exhibit a paramagnetic ground state in wide-bandgap semiconductors and are promising for nanophotonics and quantum information processing. Specifically, there is a growing interest in discovering prominent paramagnetic spin defects that can be manipulated using optical methods. Here, we investigate the electronic structure and magneto-optical properties of Cr and Mn substitutional centers in wurtzite AlN and GaN. We use state-of-the-art hybrid density functional theory calculations to determine level structure, stability, optical signatures, and magnetic properties of these centers. The excitation energies are calculated using the constrained occupation approach and rigorously verified with the complete active space configuration interaction approach. Our simulatio

SUBMITTER: Czelej K 

PROVIDER: S-EPMC11503773 | biostudies-literature | 2024 Oct

REPOSITORIES: biostudies-literature