%0 Journal Article %1 noauthororeditor %A Noad, H. M. L. %A Ishida, K. %A Li, Y.-S. %A Gati, E. %A Stangier, V. %A Kikugawa, N. %A Sokolov, D. A. %A Nicklas, M. %A Kim, B. %A Mazin, I. I. %A Garst, M. %A Schmalian, J. %A Mackenzie, A. P. %A Hicks, C. W. %D 2023 %J Science %K a %N 6669 %P 447-450 %R 10.1126/science.adf334 %T Giant lattice softening at a Lifshitz transition in Sr$_2$RuO$_4$ %U https://www.science.org/doi/full/10.1126/science.adf3348 %V 382 %X The interplay of electronic and structural degrees of freedom in solids is a topic of intense research. More than 60 years ago, Lifshitz discussed a counterintuitive possibility: lattice softening driven by conduction electrons at topological Fermi surface transitions. The effect that he predicted, however, was small and has not been convincingly observed. Using a piezo-based uniaxial pressure cell to tune the ultraclean metal strontium ruthenate while measuring the stress-strain relationship, we reveal a huge softening of the Young’s modulus at a Lifshitz transition of a two-dimensional Fermi surface and show that it is indeed driven entirely by the conduction electrons of the relevant energy band.

@article{noauthororeditor, abstract = {The interplay of electronic and structural degrees of freedom in solids is a topic of intense research. More than 60 years ago, Lifshitz discussed a counterintuitive possibility: lattice softening driven by conduction electrons at topological Fermi surface transitions. The effect that he predicted, however, was small and has not been convincingly observed. Using a piezo-based uniaxial pressure cell to tune the ultraclean metal strontium ruthenate while measuring the stress-strain relationship, we reveal a huge softening of the Young’s modulus at a Lifshitz transition of a two-dimensional Fermi surface and show that it is indeed driven entirely by the conduction electrons of the relevant energy band.}, added-at = {2023-11-01T08:57:32.000+0100}, author = {Noad, H. M. L. and Ishida, K. and Li, Y.-S. and Gati, E. and Stangier, V. and Kikugawa, N. and Sokolov, D. A. and Nicklas, M. and Kim, B. and Mazin, I. I. and Garst, M. and Schmalian, J. and Mackenzie, A. P. and Hicks, C. W.}, biburl = {https://www.bibsonomy.org/bibtex/21ef1a20518587ab9ce80af84116ca3e9/ctqmat}, day = 26, description = {Giant lattice softening at a Lifshitz transition in Sr2RuO4 | Science}, doi = {10.1126/science.adf334}, interhash = {4f91adeeaaa12f79ebcd45987dcd1053}, intrahash = {1ef1a20518587ab9ce80af84116ca3e9}, journal = {Science}, keywords = {a}, month = {10}, number = 6669, pages = {447-450}, timestamp = {2023-11-01T08:57:32.000+0100}, title = {Giant lattice softening at a Lifshitz transition in Sr$_{\mathbf{2}}$RuO$_{\mathbf{4}}$}, url = {https://www.science.org/doi/full/10.1126/science.adf3348}, volume = 382, year = 2023 }