Müller, T. F. A. ; Anisimov, V. ; Rice, T. M. ; Dasgupta, I. ; Saha-Dasgupta , T. (1998) Electronic structure of ladder cuprates Physical Review B: Condensed Matter and Materials Physics, 57 (20). R12655-R12658. ISSN 1098-0121
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Official URL: http://prb.aps.org/abstract/PRB/v57/i20/pR12655_1
Related URL: http://dx.doi.org/10.1103/PhysRevB.57.R12655
Abstract
We study the electronic structure of the ladder compounds SrCu2O3 and Sr14-xCaxCu24O41. Our local-density approximation calculations for SrCu2O3 give similar Cu 3d bands near the Fermi energy as reported for Sr14-xCaxCu24O41. The hopping parameters estimated by fitting these bands show a strong anisotropy between the t⊥ and t‖ intraladder hopping and small interladder hopping. A downfolding method shows that this anisotropy arises from the ladder structure. The conductivity perpendicular to the ladders is computed assuming incoherent tunneling giving a value close to experiment.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to The American Physical Society. |
| ID Code: | 65124 |
| Deposited On: | 15 Oct 2011 11:51 |
| Last Modified: | 15 Oct 2011 11:51 |
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