Angle-resolved photoemission study of the tri-layer high-Tc superconductor Bi2Sr2Ca2Cu3O10+δ: Effects of inter-layer hopping

• DOI: 10.1016/j.physc.2009.10.152
• Publication Date: 2009-11-07T06:22:04Z
• Authors: S. Ideta; K. Takashima; M. Hashimoto; T. Yoshida; A. Fujimori; H. Anzai; T. Fujita; Y. Nakashima; A. Ino; M. Arita; H. Namatame; M. Taniguchi; K. Ono; M. Kubota; D.H. Lu; Z.-X. Shen; K.M. Kojima; S. Uchida
• Keywords: 0103 physical sciences; 01 natural sciences

Abstract We have performed angle-resolved photoemission spectroscopy study of the electronic structure of the tri-layer high- T c cuprate superconductor Bi 2 Sr 2 Ca 2 Cu 3 O 10 + δ and observed separate band dispersions and Fermi surfaces corresponding to the outer and inner CuO2 planes. From the band dispersions, the c-axis hopping parameter t ⊥ between the outer and inner CuO2 planes is estimated to be ∼56 meV.