Title
Electron/hole liquids in high <tex>$T_{c}$</tex> superconductors and easy paths for supercarriers through the vibrational lattice Electron/hole liquids in high <tex>$T_{c}$</tex> superconductors and easy paths for supercarriers through the vibrational lattice
Author
Faculty/Department
Faculty of Sciences. Physics
Publication type
article
Publication
London ,
Subject
Physics
Source (journal)
Physics and chemistry of liquids. - London
Volume/pages
47(2009) :4 , p. 467-470
ISSN
0031-9104
ISI
000268702900010
Carrier
E
Target language
English (eng)
Full text (Publishers DOI)
Affiliation
University of Antwerp
Abstract
In a recent study in this Journal, of manifestly BCS body-centred-cubic transition metals, we presented a picture of easy paths for the supercarriers (Cooper pairs) based on electron-lattice properties. Turning to high Tc cuprates, it has been advocated for a long time that phonons play only a minor role. That point of view is challenged here by appealing first to fairly recent experiments on the oxygen isotope effects in the CuO2 planes of high Tc materials and secondly to measurements on the enhancement of Tc by epitaxial strain. Again, we advocate easy paths for supercarriers to travel through the vibrating lattice in a high Tc family as consistent with these quite different experiments. However, these arguments apply to for such a family such that , which is the maximum Tc within a family, depends importantly on anti-ferromagnetic spin fluctuations. But, we expect the variation of within such a family to correlate with easy paths for supercarriers to travel through the vibrating lattice.
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