Effect of electron-phonon coupling in the ARPES spectra of the tri-layer cuprate Bi${}_2$Sr${}_2$Ca${}_2$Cu${}_3$O${}_{10+\delta }$

Abstract

Angle-resolved photoemission spectroscopy using tunable low energy photons allows us to study the quasi-particle (QP) dispersions of the inner and outer CuO2 planes (IP and OP) separately in the tri-layer cuprate Bi${}_2$Sr${}_2$Ca${}_2$Cu${}_3$O${}_{10+\delta }$ (Bi2223). The kink energy of the OP band is $\sim$ 70 meV, as observed in various high-$T_c$ cuprates, while that of the IP band is as large as 100 meV in the superconducting (SC) state. This large kink energy is attributed to the $\sim$ 35 meV buckling mode plus the large ($\sim$ 60 meV) SC gap of IP. The IP band also shows a weak kink feature at 70 meV in the SC state. The latter feature can be explained either by the 70 meV half-breathing mode or by the $\sim$ 35 meV buckling-phonon mode plus the $\sim$ 40 meV SC gap of OP if interlayer scattering of QP is involved.

5 pages, 2 figures

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Cited by in corpus (5)

• Electronic structure of quantum materials studied by angle-resolved photoemission spectroscopy
• Hybridization of Bogoliubov-quasiparticles between adjacent CuO${}_2$ layers in the triple-layer cuprate Bi${}_2$Sr${}_2$Ca${}_2$Cu${}_3$O${}_{10+\delta }$ studied by ARPES
• Enhanced superconducting gap in the outer CuO${}_2$ plane of the trilayer cuprate (Hg,Re)Ba${}_2$Ca${}_2$Cu${}_3$O${}_{8+\delta }$
• Doping Evolution of Nodal Electron Dynamics in Trilayer Cuprate Superconductor Bi${}_2$Sr${}_2$Ca${}_2$Cu${}_3$O${}_{10+\delta }$ Revealed by Laser-Based Angle-Resolved Photoemission Spectroscopy
• Tuning superconductivity and charge density wave order by next-nearest-neighbor hopping integral in honeycomb Holstein model