Fate of quasiparticles at high temperature in the correlated metal Sr2RuO4

A Hunter; S Beck; E Cappelli; F Margot; M Straub; Y Alexanian; G Gatti; M D Watson; T K Kim; C Cacho; N C Plumb; M Shi; M Radović; D A Sokolov; A P Mackenzie; M Zingl; J Mravlje; A Georges; F Baumberger; A Tamai

doi:10.1103/PhysRevLett.131.236502

Fate of quasiparticles at high temperature in the correlated metal Sr₂RuO₄

A Hunter, S Beck, E Cappelli, F Margot, M Straub, Y Alexanian, G Gatti, M D Watson, T K Kim, C Cacho, N C Plumb, M Shi, M Radović, D A Sokolov, A P Mackenzie, M Zingl, J Mravlje, A Georges, F Baumberger, A Tamai

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Abstract

We study the temperature evolution of quasiparticles in the correlated metal Sr₂RuO₄. Our angle resolved photoemission data show that quasiparticles persist up to temperatures above 200 K, far beyond the Fermi liquid regime. Extracting the quasiparticle self-energy, we demonstrate that the quasiparticle residue Z increases with increasing temperature. Quasiparticles eventually disappear on approaching the bad metal state of Sr₂RuO₄ not by losing weight but via excessive broadening from super-Planckian scattering. We further show that the Fermi surface of Sr₂RuO₄-defined as the loci where the spectral function peaks-deflates with increasing temperature. These findings are in semiquantitative agreement with dynamical mean field theory calculations.

Original language	English
Article number	236502
Number of pages	7
Journal	Physical Review Letters
Volume	131
Issue number	23
DOIs	https://doi.org/10.1103/PhysRevLett.131.236502
Publication status	Published - 8 Dec 2023

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Copyright © 2023 the Authors. This work has been made available online in accordance with the Rights Retention Strategy This accepted manuscript is distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. The final published version of this work is available at https://doi.org/10.1103/PhysRevLett.131.236502.
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Fate of Quasiparticles at High Temperature in the Correlated Metal Sr2RuO4
Hunter, A. (Creator), Beck, S. (Creator), Mravlje, J. (Creator), Georges, A. (Creator), Baumberger, F. (Creator), Tamai, A. (Creator), ARPES, [.-C.-4.-A.-B. (Contributor) & Tamai, A. (Creator), Université de Genève, Yareta, 2023
DOI: 10.26037/yareta:ziluj4yuevexjc7u3v2ugvdx7e
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Hunter, A., Beck, S., Cappelli, E., Margot, F., Straub, M., Alexanian, Y., Gatti, G., Watson, M. D., Kim, T. K., Cacho, C., Plumb, N. C., Shi, M., Radović, M., Sokolov, D. A., Mackenzie, A. P., Zingl, M., Mravlje, J., Georges, A., Baumberger, F., & Tamai, A. (2023). Fate of quasiparticles at high temperature in the correlated metal Sr₂RuO₄. Physical Review Letters, 131(23), Article 236502. https://doi.org/10.1103/PhysRevLett.131.236502

@article{f5279b7d604e4b7dacad47cd76d38189,

title = "Fate of quasiparticles at high temperature in the correlated metal Sr2RuO4",

abstract = "We study the temperature evolution of quasiparticles in the correlated metal Sr2RuO4. Our angle resolved photoemission data show that quasiparticles persist up to temperatures above 200 K, far beyond the Fermi liquid regime. Extracting the quasiparticle self-energy, we demonstrate that the quasiparticle residue Z increases with increasing temperature. Quasiparticles eventually disappear on approaching the bad metal state of Sr2RuO4 not by losing weight but via excessive broadening from super-Planckian scattering. We further show that the Fermi surface of Sr2RuO4-defined as the loci where the spectral function peaks-deflates with increasing temperature. These findings are in semiquantitative agreement with dynamical mean field theory calculations.",

author = "A Hunter and S Beck and E Cappelli and F Margot and M Straub and Y Alexanian and G Gatti and Watson, {M D} and Kim, {T K} and C Cacho and Plumb, {N C} and M Shi and M Radovi{\'c} and Sokolov, {D A} and Mackenzie, {A P} and M Zingl and J Mravlje and A Georges and F Baumberger and A Tamai",

note = "Funding: The ARPES work was supported by the Swiss National Science Foundation (SNSF), Grant No. 184998. A. P. M. acknowledges the support of the Max Planck Society and the German Research Foundation (TRR288-422213477 ELASTO-Q-MAT, Project A10). J. M. was funded by the Slovenian Research Agency (ARIS) under Project No. J1-2458.",

year = "2023",

month = dec,

day = "8",

doi = "10.1103/PhysRevLett.131.236502",

language = "English",

volume = "131",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "23",

}

Hunter, A, Beck, S, Cappelli, E, Margot, F, Straub, M, Alexanian, Y, Gatti, G, Watson, MD, Kim, TK, Cacho, C, Plumb, NC, Shi, M, Radović, M, Sokolov, DA, Mackenzie, AP, Zingl, M, Mravlje, J, Georges, A, Baumberger, F & Tamai, A 2023, 'Fate of quasiparticles at high temperature in the correlated metal Sr₂RuO₄', Physical Review Letters, vol. 131, no. 23, 236502. https://doi.org/10.1103/PhysRevLett.131.236502

TY - JOUR

T1 - Fate of quasiparticles at high temperature in the correlated metal Sr2RuO4

AU - Hunter, A

AU - Beck, S

AU - Cappelli, E

AU - Margot, F

AU - Straub, M

AU - Alexanian, Y

AU - Gatti, G

AU - Watson, M D

AU - Kim, T K

AU - Cacho, C

AU - Plumb, N C

AU - Shi, M

AU - Radović, M

AU - Sokolov, D A

AU - Mackenzie, A P

AU - Zingl, M

AU - Mravlje, J

AU - Georges, A

AU - Baumberger, F

AU - Tamai, A

N1 - Funding: The ARPES work was supported by the Swiss National Science Foundation (SNSF), Grant No. 184998. A. P. M. acknowledges the support of the Max Planck Society and the German Research Foundation (TRR288-422213477 ELASTO-Q-MAT, Project A10). J. M. was funded by the Slovenian Research Agency (ARIS) under Project No. J1-2458.

PY - 2023/12/8

Y1 - 2023/12/8

N2 - We study the temperature evolution of quasiparticles in the correlated metal Sr2RuO4. Our angle resolved photoemission data show that quasiparticles persist up to temperatures above 200 K, far beyond the Fermi liquid regime. Extracting the quasiparticle self-energy, we demonstrate that the quasiparticle residue Z increases with increasing temperature. Quasiparticles eventually disappear on approaching the bad metal state of Sr2RuO4 not by losing weight but via excessive broadening from super-Planckian scattering. We further show that the Fermi surface of Sr2RuO4-defined as the loci where the spectral function peaks-deflates with increasing temperature. These findings are in semiquantitative agreement with dynamical mean field theory calculations.

AB - We study the temperature evolution of quasiparticles in the correlated metal Sr2RuO4. Our angle resolved photoemission data show that quasiparticles persist up to temperatures above 200 K, far beyond the Fermi liquid regime. Extracting the quasiparticle self-energy, we demonstrate that the quasiparticle residue Z increases with increasing temperature. Quasiparticles eventually disappear on approaching the bad metal state of Sr2RuO4 not by losing weight but via excessive broadening from super-Planckian scattering. We further show that the Fermi surface of Sr2RuO4-defined as the loci where the spectral function peaks-deflates with increasing temperature. These findings are in semiquantitative agreement with dynamical mean field theory calculations.

U2 - 10.1103/PhysRevLett.131.236502

DO - 10.1103/PhysRevLett.131.236502

M3 - Article

C2 - 38134803

SN - 0031-9007

VL - 131

JO - Physical Review Letters

JF - Physical Review Letters

IS - 23

M1 - 236502

ER -

Fate of quasiparticles at high temperature in the correlated metal Sr2RuO4

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Fate of Quasiparticles at High Temperature in the Correlated Metal Sr2RuO4

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Fate of quasiparticles at high temperature in the correlated metal Sr₂RuO₄