Enhanced Electron-Phonon Coupling and its Irrelevance to High T$_{c}$ Superconductivity

Details Enhanced Electron-Phonon Coupling and its Irrelevance to High T$_{c}$ Superconductivity Enhanced Electron-Phonon Coupling and its Irrelevance to High T$_{c}$ Superconductivity

1997-12-11

arxiv.org/abs/cond-mat/9712128v2

Sol. State Comm. Vol. 108, 407 (1998)

Physics

Condensed Matter

Superconductivity

4 pages, 2 figures. This and other papers can be downloaded from http://gwis2.circ.gwu.edu/~tpd

Scientific paper

10.1016/S0038-1098(98)00424-4

It is argued that the origin of the buckling of the CuO$_{2}$ planes in certain cuprates as well as the strong electron-phonon coupling of the $B_{1g}$ phonon is due to the electric field across the planes induced by atoms with different valence above and below. The magnitude of the electric field is deduced from new Raman results on YBa$_{2}$Cu$_{3}$O$_{6+x}$ and Bi$_{2}$Sr$_{2}$(Ca$_{1-x}$Y$_{x}$)Cu$_{2}$O$_{8}$ with different O and Y doping, respectively. In the latter case it is shown that the symmetry breaking by replacing Ca partially by Y enhances the coupling by an order of magnitude, while the superconducting $T_c$ drops to about two third of its original value.

Affiliated with

Also associated with

No associations

Rating

Enhanced Electron-Phonon Coupling and its Irrelevance to High T$_{c}$ Superconductivity does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Enhanced Electron-Phonon Coupling and its Irrelevance to High T$_{c}$ Superconductivity, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Enhanced Electron-Phonon Coupling and its Irrelevance to High T$_{c}$ Superconductivity will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-614244