Paper Title:

Two-Component Behavior of Cuprate Superconductors from NMR Shifts

Periodical Materials Science Forum (Volume 700)
Main Theme Advanced Materials and Nanotechnology
Edited by B. J. Ruck and T. Kemmitt
Pages 1-6
DOI 10.4028/www.scientific.net/MSF.700.1
Citation Damian Rybicki et al., 2011, Materials Science Forum, 700, 1
Online since September, 2011
Authors Damian Rybicki, Martin Greven, Juergen Haase, Thomas Meissner, Swee K. Goh, Grant V. M. Williams
Keywords High Pressure, NMR, Superconductivity
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Abstract

NMR spin shift data of La1:85Sr0:15CuO4, HgBa2CuO4+ at ambient pressure, andof YBa2Cu4O8 at pressure up to 63 kbar are discussed that fail the traditional single-electronicuid picture used for the discussion of NMR data. Instead the results point to a commonexplanation for all three systems in terms of two electronic components. One of them hasa temperature-dependent magnetic susceptibility while the second component, as well as itscoupling to the rst component, are constant above the superconducting transition temperatureTc. All susceptibilities vanish below Tc.