Abstract Details
| Quasiparticles in Bi2Sr2CaCu2O8+d | |
|---|---|
| Abstract ID | MAT-13 |
| Presenter | Inna Vishik |
| Presentation Type | Poster |
| Full Author List | I. M. Vishik (1) , W. S. Lee (1) , K. Tanaka (2) , B. Moritz (1) , T. Sasagawa (3) , T. Fujii (4) , T. P. Devereaux (1) , Z.-X. Shen (1) |
| Affiliations | (1) Department of Physics, Applied Physics, and Stanford Synchrotron Radiation Laboratory, Stanford University (2) Department of Physics, Osaka University, Osaka, Japan (3) Materials and Structures Laboratory, Tokyo Institute of Technology (4) Cryogenic Center, University of Tokyo |
| Category | Materials Science |
| Abstract | In the cuprate high-Tc superconductors, the momentum dependence of the quasiparticles along the Fermi surface gives information about scattering processes, which is important to understanding superconductivity in these materials. Recently, there has been a debate about whether the superconducting quasiparticles of Bi2Sr2CaCu2O8+ d (Bi-2212) persist all around the Fermi surface or only in a restricted region of k-space. Fourier-transformed scanning tunneling spectroscopy measurements have suggested that the locus of these quasiparticles terminates near the antiferromagnetic zone boundary, whereas angle-resolved photoemission spectroscopy (ARPES) observes quasiparticles all around the Fermi surface. We present ARPES measurements on Bi-2212 in support of the latter conclusion, and examine the momentum and doping dependence of the superconducting quasiparticles. |
| Footnotes | |
| Funding Acknowledgement | This work is supported by DOE Office of Science, Division of Materials Science, with contract DE-FG03-01ER45929-A001 and NSF grant DMR-0604701. |