%0 Journal Article %1 Sato2003 %A Sato, T. %A Matsui, H. %A Takahashi, T. %A Ding, H. %A Yang, H.-B. %A Wang, S.-C. %A Fujii, T. %A Watanabe, T. %A Matsuda, A. %A Terashima, T. %A Kadowaki, K. %D 2003 %I American Physical Society %J Phys. Rev. Lett. %K imported %N 15 %P 157003 %R 10.1103/PhysRevLett.91.157003 %T Observation of Band Renormalization Effects in Hole-Doped High-$Tc$ Superconductors %V 91 %X We report a systematic high-resolution angle-resolved photoemission spectroscopy on high-Tc superconductors Bi2Sr2Can-1CunO2n+4 (n=1–3) to study the origin of many-body interactions responsible for superconductivity. For n=2 and 3, a sudden change in the energy dispersion, so called “kink”, becomes pronounced on approaching (π,0) in the superconducting state, while a kink appears only around the nodal direction in the normal state. For n=1, the kink shows no significant temperature dependence even across Tc. This could suggest that the coupling of electrons with Q=(π,π) magnetic mode is dominant in the superconducting state for multilayered cuprates, while the interactions at the normal state and that of single-layered cuprates have a different origin.

@article{Sato2003, abstract = {We report a systematic high-resolution angle-resolved photoemission spectroscopy on high-Tc superconductors Bi2Sr2Can-1CunO2n+4 (n=1–3) to study the origin of many-body interactions responsible for superconductivity. For n=2 and 3, a sudden change in the energy dispersion, so called “kink”, becomes pronounced on approaching (π,0) in the superconducting state, while a kink appears only around the nodal direction in the normal state. For n=1, the kink shows no significant temperature dependence even across Tc. This could suggest that the coupling of electrons with Q=(π,π) magnetic mode is dominant in the superconducting state for multilayered cuprates, while the interactions at the normal state and that of single-layered cuprates have a different origin.}, added-at = {2010-11-06T00:14:39.000+0100}, author = {Sato, T. and Matsui, H. and Takahashi, T. and Ding, H. and Yang, H.-B. and Wang, S.-C. and Fujii, T. and Watanabe, T. and Matsuda, A. and Terashima, T. and Kadowaki, K.}, biburl = {https://www.bibsonomy.org/bibtex/250eadff55680b62d01ac62b234cd2bf6/nplumb}, doi = {10.1103/PhysRevLett.91.157003}, file = {:C\:\\Users\\Nick\\Documents\\Papers\\Sato et al. - Observation of band renormalization effects in hole-doped high-Tc superconductors.pdf:PDF}, interhash = {bf90cc60c9d24c269c0c92601d339217}, intrahash = {50eadff55680b62d01ac62b234cd2bf6}, journal = {Phys. Rev. Lett.}, keywords = {imported}, month = Oct, number = 15, numpages = {4}, owner = {Nick}, pages = 157003, publisher = {American Physical Society}, timestamp = {2010-11-06T00:14:43.000+0100}, title = {Observation of Band Renormalization Effects in Hole-Doped High-$Tc$ Superconductors}, volume = 91, year = 2003 }