Restored strange metal phase through suppression of charge density waves in underdoped YBa${}_2$Cu${}_3$O${}_{7-\delta }$

Abstract

The normal state of optimally doped cuprates is dominated by the "strange metal" phase that shows a linear temperature ($T$) dependence of the resistivity persisting down to the lowest $T$. For underdoped cuprates this behavior is lost below the pseudogap temperature $T^{\ast }$, where Charge Density Waves (CDW) together with other intertwined local orders characterize the ground state. Here we show that the $T$-linear resistivity of highly strained, ultrathin and underdoped YBa${}_2$Cu${}_3$O${}_{7-\delta }$ films is restored when the CDW amplitude, detected by Resonant Inelastic X-ray scattering, is suppressed. This observation points towards an intimate connection between the onset of CDW and the departure from $T$-linear resistivity in underdoped cuprates. Our results illustrate the potential of using strain control to manipulate the ground state of quantum materials.

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• Identification of a Critical Doping for Charge Order Phenomena in Bi-2212 Cuprates via RIXS
• Doping-dependence of the electron-phonon coupling in two families of bilayer superconducting cuprates
• Tuning charge density wave order and structure via uniaxial stress in a stripe-ordered cuprate superconductor
• Low-energy quasi-circular electron correlations with charge order wavelength in ${\text{Bi}}_2{\text{Sr}}_2\text{Ca}{\text{Cu}}_2{\text{O}}_{8+\delta }$
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• Mapping the phase diagram of a YBa${}_2$Cu${}_3$O${}_{7-\delta }$ nanowire through electromigration
• Colossal transverse magnetoresistance due to nematic superconducting phase fluctuations in a copper oxide
• Decoupling of Static and Dynamic Charge Correlations revealed by Uniaxial Strain in a Cuprate Superconductor
• Robust Charge-Density Wave Correlations in Optimally-Doped YBa2Cu3Oy
• Scale free distribution of oxygen interstitials wires in optimum doped HgBa${}_2$CuO${}_{4+y}$
• Coincident onset of charge order and pseudogap in a homogeneous high-temperature superconductor
• Characteristic energy of the nematic-order state and its connection to enhancement of superconductivity in cuprate superconductors
• Nematic single-component superconductivity and loop-current order from pair-density wave instability
• Lattice-decoupled rotatable stripe-like charge order within the strange metal phase of 2M-WS2
• Rare collapse of fermionic quasiparticles upon coupling to local bosons
• Doping dependence of the upper critical field in untwinned YBa${}_2$Cu${}_3$O${}_{7-\delta }$ thin films
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