NDLI: The Determination of Length Scales Associated with Dynamic Inhomogeneity in Cuprate Superconductors

Content Provider	Springer Nature Link
Author	Mihailovic, D. Kusar, P. Demsar, J. Kabav, V. V.
Copyright Year	2006
Abstract	We show that measurements of the quasiparticle (QP) relaxation time can be used to derive a characteristic phonon escape length l $_{e}$, which is shown to be related to the characteristic length scale of charge inhomogeneities. The data on phonon escape length in La$_{2−}$ $_{ x }$Sr$_{ x }$CuO$_{4}$ and other cuprates is found to agree quantitatively with the mean free path l $_{ m }$ obtained from the temperature dependence of the normal state resistivity over a wide temperature range and also agrees well with the data on structural coherence lengths l $_{s}$ obtained from neutron scattering experiments. Remarkably, a common feature of different cuprates is that above T $_{c}$ (just above the critical fluctuation region) the length scale l $_{e}$ is approximately equal to the superconducting coherence length, ξ$_{s}$(0) and corresponds to a percolation threshold in 2D for Josephson tunnelling leading to the formation of a superconducting phase-coherent state by percolation.
Starting Page	43
Ending Page	47
Page Count	5
File Format	PDF
ISSN	15571939
Journal	Journal of Superconductivity and Novel Magnetism
Volume Number	19
Issue Number	1-2
e-ISSN	15571947
Language	English
Publisher	Kluwer Academic Publishers-Plenum Publishers
Publisher Date	2006-09-30
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Characterization and Evaluation Materials Condensed Matter Magnetism, Magnetic Materials Superconductivity, Superfluidity, Quantum Fluids
Content Type	Text
Resource Type	Article
Subject	Electronic, Optical and Magnetic Materials Condensed Matter Physics

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