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Pré-Publication, Document De Travail Année : 2021

Tuning the Fermi Liquid Crossover in Sr$_2$RuO$_4$ with Uniaxial Stress

Résumé

We perform nuclear magnetic resonance (NMR) measurements of the oxygen-17 Knight shifts for Sr$_2$RuO$_4$, while subjected to uniaxial stress applied along [100] direction. The resulting strain is associated with a strong variation of the temperature and magnetic field dependence of the inferred magnetic response. A quasi-particle 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 scale is shown to be tunable by strain, and driven to low values as the associated Lifshitz transition is approached.

Dates et versions

hal-04265915 , version 1 (31-10-2023)

Identifiants

Citer

Aaron Chronister, Manuel Zingl, Andrej Pustogow, Yongkang Luo, Dmitry Sokolov, et al.. Tuning the Fermi Liquid Crossover in Sr$_2$RuO$_4$ with Uniaxial Stress. 2023. ⟨hal-04265915⟩
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