Tuning the Fermi liquid crossover in Sr2RuO4 with uniaxial stress
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 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 scale is shown to be tunable by strain, and driven to low values as the associated Lifshitz transition is approached.
Citation
Chronister , A , Zingl , M , Pustogow , A , Luo , Y , Sokolov , D A , Jerzembeck , F , Kikugawa , N , Hicks , C W , Mravlje , J , Bauer , E D , Thompson , J D , Mackenzie , A P , Georges , A & Brown , S E 2022 , ' Tuning the Fermi liquid crossover in Sr 2 RuO 4 with uniaxial stress ' , npj Quantum Materials , vol. 7 , 113 . https://doi.org/10.1038/s41535-022-00519-6
Publication
npj Quantum Materials
Status
Peer reviewed
ISSN
2397-4648Type
Journal article
Rights
Copyright © The Author(s) 2022. This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
Description
Funding: A.P. acknowledges support by the Alexander von Humboldt Foundation through the Feodor Lynen Fellowship. A.C. acknowledges support from the Julian Schwinger Foundation. This work was supported by the National Science Foundation under grant numbers 1709304, 2004553. Work at Los Alamos was supported by the Los Alamos National Laboratory LDRD Program. N.K. is supported by a KAKENHI Grants-in-Aids for Scientific Research (Grant Nos. 17H06136, 18K04715, and 21H01033), and Core-to-Core Program (No. JPJSCCA20170002) from the Japan Society for the Promotion of Science and by a JST-Mirai Program grant (No. JPMJMI18A3). J.M. acknowledges funding by the Slovenian Research Agency (ARRS) under Program No. P1-0044, J1-1696, and J1-2458. The work at Dresden was funded by the Deutsche Forschungsgemeinschaft-TRR 288-422213477 (projects A10 and B01). The Flatiron Institute is a division of the Simons Foundation.Collections
Items in the St Andrews Research Repository are protected by copyright, with all rights reserved, unless otherwise indicated.