Magnetic frustration model for superconductivity in planar CuO2 systems |
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| Authors: | R J Birgeneau M A Kastner A Aharony |
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| Institution: | (1) Department of Physics, Massachusetts Institute of Technology, 03129 Cambridge, Mass, USA;(2) School of Physics and Astronomy, Beverly and Raymond Sackler Faculty of Exact Sciences, Tel Aviv University, 69978 Tel Aviv, Israel |
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| Abstract: | We present a model for the superconductivity in CuO2 planar systems based on the magnetic frustration mechanism introduced recently by Aharony et al.; our model incorporates explicitly the concentration dependence of the Cu++ spin-spin correlation function. We argue that the transport is via holes in the non-bonding in-plane oxygen orbitals. These two features lead tod-state pairing with, in the BCS approximation, a predictedT
c
vsx dependence which agrees well experiments on La2–xSrxCuO4. |
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