The bilayered member of the Ruddesden-Popper family of ruthenates, Sr3Ru2O7, has received an increasing attention due to its interesting properties and phases. By using first principle calculations we find that the ground-state is characterized by a ferromagnetic (FM) half-metallic state. This state strongly competes with an antiferromagnetic metallic phase, which indicates the possible presence of a particular state characterized by the existence of different magnetic domains. To drive the system towards a phase transition we studied the electronic and magnetic properties as a function of RuO6 octahedra rotations and found that the magnetic phase does not couple with the rotation angle. Our results provide accurate electronic, structure, and magnetic ground-state properties of Sr3Ru2O7 and stimulate the investigation of other type of octahedra rotations and distortions in the search of phase transitions.
@article{arxiv.1702.06551,
title = {Half-metallic ferromagnetism in Sr$_3$Ru$_2$O$_7$},
author = {Pablo Rivero and Vincent Meunier and William Shelton},
journal= {arXiv preprint arXiv:1702.06551},
year = {2017}
}