Authors: G C Kim D Ahmad Y C Kim
Publish Date: 2011/09/06
Volume: 25, Issue: 1, Pages: 67-70
Abstract
We report a new finding on the phase coherence between strongly underdoped superconducting Bi2Sr2CaCu2O8+δ Bi2212 grains Contrary to the expectation based on the linear suppression of the superfluid density at T=0 K with the decreasing hole concentration in the underdoped region the phase coherence between superconducting grains was remarkably enhanced at a hole concentration p≃008 in the underdoped regime The likely candidate giving rise to our finding is the phasedisordered superconducting quasiparticles around the antinode of the Fermi surface
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