Planckian Dissipation and non-Ginzburg-Landau Type Upper Critical Field in Bi2201

Abstract

Resistivity and Hall effect measurements have been carried out on a micro-fabricated bridge of Bi2201 single crystal at low temperatures down to 0.4 K under high magnetic fields. When superconductivity is crashed by a high magnetic field, the recovered "normal state" resistivity still shows a linear temperature dependence in low temperature region. Combining with the effective mass and the charge carrier density, we get a linear scattering rate $1/\tau =\alpha k_{B}T/\hslash$ with $0.77<\alpha <1.16$, which gives a strong evidence of the Planckian dissipation. Furthermore, our results reveal a new type of temperature dependence of upper critical field, $H_{c2}(T)=H^{\ast }\sqrt{(1-t)/(t+0.154)}$, which is totally different from the expectation of the Ginzburg-Landau theory, and suggests uncondensed Cooper pairs above $H_{c2}(T)$ line.

8 pages, 4 figures

References in corpus (15)

• Fermi-liquid instabilities at magnetic quantum phase transitions
• Theory of universal incoherent metallic transport
• Quantum Criticality
• Spin correlations in the electron-doped high-transition-temperature superconductor Nd{2-x}Ce{x}CuO{4+/-delta}
• Universal scaling of the critical temperature and the strange-metal scattering rate in unconventional superconductors
• Linear-in temperature resistivity from an isotropic Planckian scattering rate
• Pseudogap phase of cuprate superconductors confined by Fermi surface topology
• Vortex Lattice Melting and Hc2 in underdoped YBa2Cu3Oy
• Nernst effect in the electron-doped cuprate superconductor PCCO: Superconducting fluctuations, upper critical field Hc2, and the origin of the Tc dome
• 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
• Hidden Fermi-liquid charge transport in the antiferromagnetic phase of the electron-doped cuprates
• Transport signatures of the pseudogap critical point in the cuprate superconductor Bi${}_2$Sr${}_{2-x}$La${}_x$CuO${}_{6+\delta }$
• Growth and Characterization of Bi${}_{2+x}$Sr${}_{2-x}$CuO${}_{6+\delta }$ Single Crystals
• A counterexample to the conjectured Planckian bound on transport
• Unconventional quantum vortex matter state hosts quantum oscillations in the underdoped high-temperature cuprate superconductors

Cited by in corpus (1)

• From non-metal to strange metal at the stripe-percolation transition in La${}_{2-x}$Sr${}_x$CuO${}_4$