Photoemission study of the intra-unit-cell coupling in a trilayer cuprate

D. L. Feng, H. Eisaki, K. M. Shen, A. Damascelli, C. Kim, D. H. Lu, Z. X. Shen, K. Shimizu, J. I. Shimoyama, K. Kishio, N. Motoyama, N. Kaneko, M. Greven, G. D. Gu

Research output: Contribution to journalArticlepeer-review

5 Scopus citations


The electronic structures of the nearly optimally doped single-layer, bilayer and trilayer Bi-based cuprates are investigated by angle-resolved photoemission spectroscopy. A lineshape analysis of data taken for different photon energies indicates that the interlayer coupling within the trilayer is not stronger than its counterpart in the bilayer system. This suggests that the higher Tc of the trilayer cuprate superconductors is not due to an enhancement of the coupling strength between the neighboring CuO2 planes within each unit cell.

Original languageEnglish (US)
Pages (from-to)1691-1696
Number of pages6
JournalInternational Journal of Modern Physics B
Issue number11-12
StatePublished - May 20 2002


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