Half-metallicity and two-dimensional hole gas at the ${\text{BiFeO}}_{\text{3}}$(001) surface

Soumyasree Jena, Sanjoy Datta

The electronic structure and thermodynamic stability of tetragonal $\mathrm{BiFe}{\mathrm{O}}_3$(001) surfaces have been investigated using density functional theory. In this work, four different…