Two-Component Behavior of Cuprate Superconductors from NMR Shifts
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Published:2011-09
Issue:
Volume:700
Page:1-6
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ISSN:1662-9752
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Container-title:Materials Science Forum
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language:
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Short-container-title:MSF
Author:
Rybicki Damian1,
Greven Martin2,
Haase Juergen1,
Meissner Thomas1,
Goh Swee K.3,
Williams Grant V. M.4
Affiliation:
1. University of Leipzig
2. University of Minnesota
3. University of Cambridge
4. Industrial Research Limited
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.
Publisher
Trans Tech Publications, Ltd.
Subject
Mechanical Engineering,Mechanics of Materials,Condensed Matter Physics,General Materials Science