Strange metal from spin fluctuations in a cuprate superconductor

Abstract

Strange metals challenge our understanding of charge transport in metals. Here, we investigate how the strange metal phase of La${}_{2-x}$Sr${}_x$CuO${}_4$ is impacted by a field-induced glassy antiferromagnetic state. Using magnetic fields above 80 T, we discover a strong enhancement of the normal state magnetoresistance when entering the spin glass phase. We demonstrate that the spin glass causes insulating-like upturns in the resistivity inside the pseudogap phase, which resolves the origin of the ''metal-insulator'' crossover. In addition the strange metal phase appears at low temperatures over an extended range of magnetic fields where magnetic moments fluctuate, and disappears when these moments freeze out. We conclude that the transport properties of the strange metal phase are controlled by magnetic fluctuations persisting at the lowest temperatures.

References in corpus (36)

• Strange metal in magic-angle graphene with near Planckian dissipation
• Phonon scattering dominated electron transport in twisted bilayer graphene
• Quantum Criticality in Twisted Transition Metal Dichalcogenides
• Universal $T$-linear resistivity and Planckian limit in overdoped cuprates
• Persistence of magnetic excitations in La2-xSrxCuO4 from the undoped insulator to the heavily overdoped non-superconducting metal
• Spin ordering quantum transitions of superconductors in a magnetic field
• Correlation between linear resistivity and $T_c$ in the Bechgaard salts and the pnictide superconductor Ba(Fe${}_{1-x}$Co${}_x$)${}_2$As${}_2$
• Scale-invariant magnetoresistance in a cuprate superconductor
• Direct relation between the low-energy spin excitations and superconductivity of overdoped high-$T_c$ superconductors
• Tuning competing orders in La2-xSrxCuO4 cuprate superconductors by the application of an external magnetic field
• Pseudogap temperature $T^{\star }$ of cuprate superconductors from the Nernst effect
• Incoherent transport across the strange metal regime of highly overdoped cuprates
• Universal theory of strange metals from spatially random interactions
• Disappearance of antiferromagnetic spin excitations in over-doped La${}_{2-x}$Sr${}_x$CuO${}_4$
• Dispersive spin excitations in highly overdoped cuprates revealed by resonant inelastic x-ray scattering
• Magnetic order and superconductivity in LSCO: a review
• Hidden magnetism at the pseudogap critical point of a high temperature superconductor
• Field-induced transition between magnetically disordered and ordered phases in underdoped La(2-x)SrxCuO4
• The Persistence of High-Frequency Spin Fluctuations in Overdoped La${}_{2-x}$Sr${}_x$CuO${}_4$ ($x$=0.22)
• Field-Induced Freezing of a Quantum Spin Liquid on the Kagome Lattice
• Fermi surface transformation at the pseudogap critical point of a cuprate superconductor
• Ordering in a spin glass under applied magnetic field
• Doping dependence of the magnetic excitations in La${}_{2-x}$Sr${}_x$CuO${}_4$
• Normal state specific heat in the cuprates La${}_{2-x}$Sr${}_x$CuO${}_4$ and Bi${}_{2+y}$Sr${}_{2-x-y}$La${}_x$CuO${}_{6+\delta }$ near the critical point of the pseudogap phase
• A resonant inelastic x-ray scattering study of the spin and charge excitations in the overdoped superconductor La1.77Sr0.23CuO4
• Crossover from Collective to Incoherent Spin Excitations in Superconducting Cuprates Probed by Detuned Resonant Inelastic X-ray Scattering
• Localization of overdamped bosonic modes and transport in strange metals
• Planckian Metal at a Doping-Induced Quantum Critical Point
• Tunable non-Fermi liquid phase from coupling to two-level systems
• Observation of cyclotron resonance and measurement of the hole mass in optimally-doped La${}_{2-x}$Sr${}_x$CuO${}_4$
• Spin fluctuations associated with the collapse of the pseudogap in a cuprate superconductor
• Solvable models of two-level systems coupled to itinerant electrons: Robust non-Fermi liquid and quantum critical pairing
• Competition between spin ordering and superconductivity near the pseudogap boundary in La2-xSrxCuO4: insights from NMR
• High magnetic field ultrasound study of spin freezing in La${}_{1.88}$Sr${}_{0.12}$CuO${}_4$
• From non-metal to strange metal at the stripe-percolation transition in La${}_{2-x}$Sr${}_x$CuO${}_4$
• Strange metal behavior from incoherent carriers scattered by local moments

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• The foot, the fan, and the cuprate phase diagram: Fermi-volume-changing quantum phase transitions
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• Critical spin fluctuations across the superconducting dome in La${}_{2-x}$Sr${}_x$CuO${}_4$