Tuning the Fermi liquid crossover in Sr2RuO4 with uniaxial stress

Tuning the Fermi liquid crossover in Sr2RuO4 with uniaxial stress

Blog Article

Abstract We perform nuclear magnetic resonance (NMR) measurements of the oxygen-17 Knight shifts for Sr2RuO4, while subjected to uniaxial stress applied along [100] direction.The resulting strain is associated with a strong Gift cards variation of the temperature and magnetic field dependence of the inferred magnetic response.A quasiparticle description based on density-functional theory calculations, supplemented by many-body renormalizations, is found to reproduce our experimental results, and highlights the key role of a van-Hove singularity.

The Fermi-liquid coherence Wooden House scale is shown to be tunable by strain, and driven to low values as the associated Lifshitz transition is approached.