Giant lattice softening at a Lifshitz transition in Sr2RuO4

H. M. L. Noad; K. Ishida; Y.-S. Li; E. Gati; V. Stangier; N. Kikugawa; D. A. Sokolov; M. Nicklas; B. Kim; I. I. Mazin; M. Garst; J. Schmalian; A. P. Mackenzie; C. W. Hicks

doi:10.1126/science.adf3348

Giant lattice softening at a Lifshitz transition in Sr₂RuO₄

H. M. L. Noad^*
, K. Ishida
, Y.-S. Li
, E. Gati
, V. Stangier
, N. Kikugawa
, D. A. Sokolov
, M. Nicklas
, B. Kim
, I. I. Mazin
, M. Garst
, J. Schmalian^*
, A. P. Mackenzie^*
, C. W. Hicks^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

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.

Original language	English
Pages (from-to)	447-450
Number of pages	4
Journal	Science
Volume	382
Issue number	6669
DOIs	https://doi.org/10.1126/science.adf3348
Publication status	Published - 27 Oct 2023

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@article{7801b481725a4e0b9c4e26f9be0e80eb,

title = "Giant lattice softening at a Lifshitz transition in Sr2RuO4",

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{\textquoteright}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.",

author = "Noad, \{H. M. L.\} and K. Ishida and Y.-S. Li and E. Gati and V. Stangier and N. Kikugawa and Sokolov, \{D. A.\} and M. Nicklas and B. Kim and Mazin, \{I. I.\} and M. Garst and J. Schmalian and Mackenzie, \{A. P.\} and Hicks, \{C. W.\}",

note = "This work was supported by the Max Planck Society; Research in Dresden benefits from the environment provided by the DFG Cluster of Excellence (ct.qmat EXC 2147, Project 390858940 to A.P.M.); the German Research Foundation (TRR 288-422213477 ELASTO-Q-MAT, Project A10 to H.M.L.N., A.P.M., and C.W.H.; TRR 288-422213477 ELASTO-Q-MAT, Project A11 to M.G.; and TRR 288-422213477 ELASTO-Q-MAT, Project B01 to J.S. and V.S.); the Alexander von Humboldt Foundation (Research Fellowship for Postdoctoral Researchers to H.M.L.N.); received funding of the Klaus Tschira Boost Fund, a joint initiative of the German Scholars Organization and the Klaus Tschira Foundation (to H.M.L.N.); the Japan Society for the Promotion of Science (Overseas Research Fellowship to K.I. and KAKENHI Grants-in-Aid for Scientific Research grants 17H06136, 18K04715, 21H01033, and 22K19093 to N.K.; and Core-to-Core Program grant JPJSCCA20170002 to N.K.); the Japan Science and Technology Agency (JST)–Mirai Program (grant no. JPMJMI18A3 to N.K.); and the National Research Foundation of Korea (grants 2021R1C1C1007017 and 2022M3H4A1A04074153 to B.K.).",

year = "2023",

month = oct,

day = "27",

doi = "10.1126/science.adf3348",

language = "English",

volume = "382",

pages = "447--450",

journal = "Science",

issn = "0036-8075",

publisher = "American Association for the Advancement of Science",

number = "6669",

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TY - JOUR

T1 - Giant lattice softening at a Lifshitz transition in Sr2RuO4

AU - Noad, H. M. L.

AU - Ishida, K.

AU - Li, Y.-S.

AU - Gati, E.

AU - Stangier, V.

AU - Kikugawa, N.

AU - Sokolov, D. A.

AU - Nicklas, M.

AU - Kim, B.

AU - Mazin, I. I.

AU - Garst, M.

AU - Schmalian, J.

AU - Mackenzie, A. P.

AU - Hicks, C. W.

N1 - This work was supported by the Max Planck Society; Research in Dresden benefits from the environment provided by the DFG Cluster of Excellence (ct.qmat EXC 2147, Project 390858940 to A.P.M.); the German Research Foundation (TRR 288-422213477 ELASTO-Q-MAT, Project A10 to H.M.L.N., A.P.M., and C.W.H.; TRR 288-422213477 ELASTO-Q-MAT, Project A11 to M.G.; and TRR 288-422213477 ELASTO-Q-MAT, Project B01 to J.S. and V.S.); the Alexander von Humboldt Foundation (Research Fellowship for Postdoctoral Researchers to H.M.L.N.); received funding of the Klaus Tschira Boost Fund, a joint initiative of the German Scholars Organization and the Klaus Tschira Foundation (to H.M.L.N.); the Japan Society for the Promotion of Science (Overseas Research Fellowship to K.I. and KAKENHI Grants-in-Aid for Scientific Research grants 17H06136, 18K04715, 21H01033, and 22K19093 to N.K.; and Core-to-Core Program grant JPJSCCA20170002 to N.K.); the Japan Science and Technology Agency (JST)–Mirai Program (grant no. JPMJMI18A3 to N.K.); and the National Research Foundation of Korea (grants 2021R1C1C1007017 and 2022M3H4A1A04074153 to B.K.).

PY - 2023/10/27

Y1 - 2023/10/27

N2 - 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.

AB - 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.

U2 - 10.1126/science.adf3348

DO - 10.1126/science.adf3348

M3 - Article

SN - 0036-8075

VL - 382

SP - 447

EP - 450

JO - Science

JF - Science

IS - 6669

ER -