New insight into the low temperature phase of Ca3Ru2O7

Danilo Puggioni; James M Rondinelli

New insight into the low temperature phase of Ca₃Ru₂O₇

ORAL

Abstract

Despite the countless theoretical studies on the Ruddlesden-Popper ruthenate Ca₃Ru₂O₇,the structure and physics of its low temperature phase (T < 48 K) remains unclear. Here, using first principle calculations, we shed light on this phase, reconciling several disparate experimental results with a model based on band theory and static correlations. Our results suggest that an accurate description of the strong interplay among electronic correlation, magnetic ordering, spin-orbit interaction, and structural degrees of freedom are necessary to understand the properties of the low temperature phase of Ca₃Ru₂O_7.

March 7, 2019, 4:30 PM – March 7, 2019, 4:42 PM

Presenters

Danilo Puggioni

Northwestern University, Materials Science and Engineering, Northwestern University, Department of Materials Science and Engineering, Northwestern University

Authors

Danilo Puggioni

Northwestern University, Materials Science and Engineering, Northwestern University, Department of Materials Science and Engineering, Northwestern University
James M Rondinelli

Northwestern University, Northwestern university, Department of Materials Science and Engineering, Northwestern Univ, Materials Science and Engineering, Northwestern University, Department of Materials Science and Engineering, Northwestern University