Reversible manipulation of the magnetic state in SrRuO₃ through electric-field controlled proton evolution.

ABSTRACT: Ionic substitution forms an essential pathway to manipulate the structural phase, carrier density and crystalline symmetry of materials via ion-electron-lattice coupling, leading to a rich spectrum of electronic states in strongly correlated systems. Using the ferromagnetic metal SrRuO₃ as a model system, we demonstrate an efficient and reversible control of both structural and electronic phase transformations through the electric-field controlled proton evolution with ionic liquid gating. The insertion of protons results in a large structural expansion and increased carrier density, leading to an exotic ferromagnetic to paramagnetic phase transition. Importantly, we reveal a novel protonated compound of HSrRuO₃ with paramagnetic metallic as ground state. We observe a

SUBMITTER: Li Z 

PROVIDER: S-EPMC6954193 | biostudies-literature | 2020 Jan

REPOSITORIES: biostudies-literature