Possible field-tuned SIT in high-Tc superconductors: implications for pairing at high magnetic fields

Abstract

The behavior of some high temperature superconductors (HTSC) such as $\mathrm{L}{\mathrm{a}}_{2-\mathrm{x}}\mathrm{S}{\mathrm{r}}_{\mathrm{x}}\mathrm{Cu}{\mathrm{O}}_4$ and $\mathrm{B}{\mathrm{i}}_2\mathrm{S}{\mathrm{r}}_{2-\mathrm{x}}\mathrm{L}{\mathrm{a}}_{\mathrm{x}}\mathrm{Cu}{\mathrm{O}}_{6+\delta }$, at very high magnetic field, is similar to that of thin films of amorphous InOx near the magnetic field-tuned superconductor-insulator transition. Analyzing the InOx data at high fields in terms of persisting local pairing amplitude, we argue by analogy that local pairing amplitude also persists well into the dissipative state of the HTSCs, the regime commonly denoted as the "normal state" in very high magnetic field experiments.

Revised figures and references

References in corpus (7)

• Metal-to-Insulator Crossover in the Low-Temperature Normal State of Bi_{2}Sr_{2-x}La_{x}CuO_{6+δ}
• Dissipation effects on the superconductor-insulator transition in 2-D superconductors
• Superconductivity-Related Insulating Behavior
• The high-field phase diagram of the cuprates derived from the Nernst effect
• Entropy of vortex cores on the border of the superconductor-to-insulator transition in an underdoped cuprate
• Effects of dissipation on quantum phase transitions
• Superconductor-Insulator Transition in a Capacitively Coupled Dissipative Environment

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