Compartmentalizing the cuprate strange metal

Berben, M.; Ayres, J.; Duffy, C.; Hinlopen, R. D. H.; Hsu, Y. -T.; Leroux, M.; Gilmutdinov, I.; Massoudzadegan, M.; Vignolles, D.; Huang, Y.; Kondo, T.; Takeuchi, T.; Cooper, J. R.; Friedemann, S.; Carrington, A.; Proust, C.; Hussey, N. E.

doi:10.48550/arxiv.2203.04867

Cited by 6 publications

(11 citation statements)

References 96 publications

(199 reference statements)

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“…The T -linear resistivity at low temperatures persists up to x ≈ 0.3 in LSCO 6 , which is surprising since the doping level is readily far from the hypothetic quantum critical point at x c ≈ 0.2. Subsequent careful analysis of the magnetoresistivity data at x = 0.23 reveals a special quadratic scaling 13 consistent with the phenomenological "quadrature Planckian" dissipation τ −1 = T 2 + γ 2 B 214 . This includes an unusual resistivity linear in B at low temperatures.…”

Section: Introductionsupporting

confidence: 52%

“…If we assume that α becomes effectively larger as the temperature is lowered, as we discussed in the previous subsection, the above result implies the B-linear regime extends as the temperature is lowered, consistent with the experimental results 6,7 . This adds salt to the conventional mechanism based on the cyclotron motion 16,34,35 , which should be compared to the more exotic picture of "quadrature Planckian dissipation" 13,14,36 .…”

Section: B Magnitoresistivitymentioning

confidence: 99%

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Magnetotransport in overdoped La$_{2-x}$Sr$_x$CuO$_4$: Effect of anisotropic scattering

Mao¹,

Wang²,

Wang³

2022

Preprint

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We revisit the Hall effect and magnetoresistivity by incorporating the anisotropic scattering caused by apical oxygen vacancies in overdoped La-based cuprates 1 . The theoretical calculations within the Fermi liquid picture agree well with a handful of anomalous magneto-transport data, better than the results using an isotropic scattering rate alone. In particular, we obtain the upturn of Hall coefficient RH with decreasing temperature T 2,3 , the initial drop of RH in magnetic field B in all overdoped regimes 4,5 , the linear resistivity ρ versus B near the van Hove doping level 6,7 , the temperature dependence of the magnetoresistivity ratio [6][7][8][9] , and the violation of Kohler's law 8,9 . These results suggest that many of the anomalous transport behaviors in overdoped La2−xSrxCuO4 could actually be understood within the Fermi liquid picture.

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Section: Introductionsupporting

confidence: 52%

Section: B Magnitoresistivitymentioning

confidence: 99%

Magnetotransport in overdoped La$_{2-x}$Sr$_x$CuO$_4$: Effect of anisotropic scattering

Mao¹,

Wang²,

Wang³

2022

Preprint

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“…Finally, it is interesting to note that Berben et al [104] have recently reported evidence that strange-metal behavior (in the form form of in-plane magnetoresistance scaling as H/T ) occurs throughout the overdoped regime for three different cuprate families, including LSCO. Furthermore, Yang et al [105] have reported that artificial disorder applied to an optimally-doped YBa 2 Cu 3 O 6+x thin film led to the observation of strange-metal behavior.…”

Section: Discussionmentioning

confidence: 98%

Strongly-overdoped La$_{2-x}$Sr$_x$CuO$_4$: Evidence for Josephson-coupled grains of strongly-correlated superconductor

Li¹,

Sapkota²,

Lozano³

et al. 2022

Preprint

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The interpretation of how superconductivity disappears in cuprates at large hole doping has been controversial. To address this issue, we present an experimental study of single-crystal and thin film samples of La2−xSrxCuO4 (LSCO) with x ≥ 0.25. In particular, measurements of bulk susceptibility on LSCO crystals with x = 0.25 indicate an onset of diamagnetism at Tc1 = 38.5 K, with a sharp transition to a phase with full bulk shielding at Tc2 = 18 K, independent of field direction. Strikingly, the in-plane resistivity only goes to zero at Tc2. Inelastic neutron scattering on x = 0.25 crystals confirms the presence of low-energy incommensurate magnetic excitations with reduced strength compared to lower doping levels. The ratio of the spin gap to Tc2 is anomalously large. Our results are consistent with a theoretical prediction for strongly overdoped cuprates by Spivak, Oreto, and Kivelson, in which superconductivity initially develops within disconnected self-organized grains characterized by a reduced hole concentration, with bulk superconductivity occurring only after superconductivity is induced by proximity effect in the surrounding medium of higher hole concentration. Beyond the superconducting-to-metal transition, local differential conductance measurements on an LSCO thin film suggest that regions with pairing correlations survive, but are too dilute to support superconducting order. Future experiments will be needed to test the degree to which these results apply to overdoped cuprates in general.

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“…This is conclusive evidence for the overdoped metal to be non Fermiliquid as well, albeit of a different kind than the underdoped strange metals. On basis of a compilation of magnetotransport data it was argued that this may reveal the existence of two parallel fluids: a more normal Fermiliquid affair and the strange metal where the latter gradually diminishes upon overdoping [68]. This was actually part of out initial motivation to have a closer look with optics.…”

Section: Discussionmentioning

confidence: 99%

Strange metal dynamics across the phase diagram of Bi$_{2}$Sr$_{2}$CuO$_{6+δ}$ cuprates

van Heumen,

Feng,

Cassanelli

et al. 2022

Preprint

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Compartmentalizing the cuprate strange metal

Cited by 6 publications

References 96 publications

Magnetotransport in overdoped La$_{2-x}$Sr$_x$CuO$_4$: Effect of anisotropic scattering

Magnetotransport in overdoped La$_{2-x}$Sr$_x$CuO$_4$: Effect of anisotropic scattering

Strongly-overdoped La$_{2-x}$Sr$_x$CuO$_4$: Evidence for Josephson-coupled grains of strongly-correlated superconductor

Strange metal dynamics across the phase diagram of Bi$_{2}$Sr$_{2}$CuO$_{6+δ}$ cuprates

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