Please use this identifier to cite or link to this item:
http://hdl.handle.net/2289/1295
Title: | c-axis resistivity and high-Tc superconductivity |
Authors: | Kumar, N. Pareek, T.P. Jayannavar, A.M. |
Issue Date: | 1-Jun-1998 |
Publisher: | The American Physical Society |
Citation: | Physical Review B, 1998, Vol.57, 13399-13402 |
Abstract: | Recently we had proposed a mechanism for the normal-state c-axis resistivity of the high-Tc layered cuprates that involved blocking of the single-particle tunneling between the weakly coupled planes by strong intraplanar electron-electron scattering. This gave a c-axis resistivity that tracks the ab-plane T-linear resistivity, as observed in the high-temperature limit. In this work this mechanism is examined further for its implication for the ground-state energy and superconductivity of the layered cuprates. It is now argued that, unlike the single-particle tunneling, the tunneling of a bosonlike pair between the planes prepared in the BCS-type coherent trial state remains unblocked inasmuch as the latter is by construction an eigenstate of the pair-annihilation operator. The resulting pair delocalization along the c axis offers energetically a comparative advantage to the paired-up trial state, and thus stabilizes superconductivity. In this scheme the strongly correlated nature of the layered system enters only through the blocking effect, namely, that a given electron is effectively repeatedly monitored (intraplanarly scattered) by the other electrons acting as an environment, on a time scale shorter than the interplanar tunneling time. |
URI: | http://hdl.handle.net/2289/1295 |
ISSN: | 1550-235X (online) 1098-0121 |
Alternative Location: | http://link.aps.org/abstract/PRB/v57/p13399 |
Copyright: | (1998) by the American Physical Society |
Appears in Collections: | Research Papers (TP) |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
1998 PRB 57 p13399.pdf | 4p. | 115.49 kB | Adobe PDF | View/Open |
Items in RRI Digital Repository are protected by copyright, with all rights reserved, unless otherwise indicated.