Year: 2017
Type: article
Abstract: The bilayered member of the Ruddesden-Popper family of ruthenates, ${\mathrm{Sr}}_{3}{\mathrm{Ru}}_{2}{\mathrm{O}}_{7}$, has received 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 ${\mathrm{RuO}}_{6}$ 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 ${\mathrm{Sr}}_{3}{\mathrm{Ru}}_{2}{\mathrm{O}}_{7}$ and stimulate the investigation of other types of octahedra rotations and distortions in the search of phase transitions.
Authors: Pablo Rivero, Vincent Meunier, William Shelton
Institutions: Louisiana State University, Rensselaer Polytechnic Institute
Language: Latvian
Field: Materials Science
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W2589970369