A new magnetic phase in the nickelate perovskite TlNiO${}_3$

Abstract

The RNiO${}_3$ perovskites are known to order antiferromagnetically below a material-dependent Néel temperature $T_{\text{N}}$. We report experimental evidence indicating the existence of a second magnetically-ordered phase in TlNiO${}_3$ above $T_{\text{N}}=104$ K, obtained using nuclear magnetic resonance and muon spin rotation spectroscopy. The new phase, which persists up to a temperature $T_{\text{N}}^{\ast }=202$ K, is suppressed by the application of an external magnetic field of approximately 1 T. It is not yet known if such a phase also exists in other perovskite nickelates.

5 pages, 7 figures

References in corpus (2)

• Role of magnetic and orbital ordering at the metal-insulator transition in NdNiO3
• Low-energy description of the metal-insulator transition in the rare-earth nickelates

Cited by in corpus (3)

• RENiO3 single crystals (RE = Nd, Sm, Gd, Dy, Y, Ho, Er, Lu) grown from molten salts under 2000 bar oxygen-gas pressure
• Distortion mode anomalies in bulk PrNiO${}_3$ illustrating the potential of symmetry-adapted distortion mode analysis for the study of phase transitions
• Magnetostructural Coupling at the Néel point in YNiO3 Single Crystals