1.

Influence of the Nd 4f states on the magnetic behavior and the electric field gradient of the oxypnictides superconductors NdFeAsO1-xFx

We demonstrate with the 75As nuclear magnetic resonance measurements a coupling between isolating NdO layers and conducting FeAs layers. We discuss a role of rare-earth element on magnetism and superconductivity of REFeAsO superconductors, when the rare-earth element is magnetic.

COBISS.SI-ID: 22492199

2.

Low-moment antiferromagnetic ordering in triply charged cubic fullerides close to the metal-insulator transition

We report on the ambient pressure 13C and 133Cs NMR study of cubic A15 Cs3C60, which shows non-BCS superconductivity at 38 K under pressure. Temperature-independent 13C and 133Cs spin-lattice relaxation rates prove an insulating ground state with a small effective magnetic moment. Below 46 K, A15 Cs3C60 orders into an antiferromagnetic structure, which underlines the importance of electronic correlations in A15 Cs3C60.

COBISS.SI-ID: 23155751