%0 Journal Article %1 Yamasaki2007 %A Yamasaki, T. %A Yamazaki, K. %A Ino, A. %A Arita, M. %A Namatame, H. %A Taniguchi, M. %A Fujimori, A. %A Shen, Z.-X. %A Ishikado, M. %A Uchida, S. %D 2007 %I APS %J Phys. Rev. B %K bismuth calcium compounds; high-temperature photoelectron photoemission; quasiparticles; spectra; strontium superconducting superconductors; transitions %N 14 %P 140513(R) %R 10.1103/PhysRevB.75.140513 %T Unmasking the nodal quasiparticle dynamics in cuprate superconductors using low-energy photoemission %V 75 %X Nodal quasiparticles of Bi2Sr2CaCu2O8+δ have been studied by angle-resolved photoemission spectroscopy with high momentum and energy resolution. Low-energy tunable photons have enabled us to resolve a small nodal bilayer splitting, unmasking the intrinsic single-particle scattering rate. The nodal scattering rate is abruptly suppressed upon the superconducting transition, and shows a linear energy dependence at low energies, indicating the nontrivial effect of elastic scatterings on the quasiparticles. With increasing energy, the antibonding-band scattering rate becomes higher than the bonding one. The observations imply the character of the scatterers dominant at low energies.

@article{Yamasaki2007, abstract = {Nodal quasiparticles of Bi2Sr2CaCu2O8+δ have been studied by angle-resolved photoemission spectroscopy with high momentum and energy resolution. Low-energy tunable photons have enabled us to resolve a small nodal bilayer splitting, unmasking the intrinsic single-particle scattering rate. The nodal scattering rate is abruptly suppressed upon the superconducting transition, and shows a linear energy dependence at low energies, indicating the nontrivial effect of elastic scatterings on the quasiparticles. With increasing energy, the antibonding-band scattering rate becomes higher than the bonding one. The observations imply the character of the scatterers dominant at low energies.}, added-at = {2010-11-06T00:14:39.000+0100}, author = {Yamasaki, T. and Yamazaki, K. and Ino, A. and Arita, M. and Namatame, H. and Taniguchi, M. and Fujimori, A. and Shen, Z.-X. and Ishikado, M. and Uchida, S.}, biburl = {https://www.bibsonomy.org/bibtex/21b80d284745c5124b494de7e5550b9e7/nplumb}, doi = {10.1103/PhysRevB.75.140513}, eid = {140513}, file = {:C\:\\Users\\Nick\\Documents\\Papers\\Yamasaki et al. - Unmasking the nodal quasiparticle dynamics in cuprate superconductors using low-energy photoemission.pdf:PDF}, interhash = {3e1449b046272448802cd1979410234d}, intrahash = {1b80d284745c5124b494de7e5550b9e7}, journal = {Phys. Rev. B}, keywords = {bismuth calcium compounds; high-temperature photoelectron photoemission; quasiparticles; spectra; strontium superconducting superconductors; transitions}, number = 14, owner = {Nick}, pages = {140513(R)}, publisher = {APS}, timestamp = {2010-11-06T00:14:44.000+0100}, title = {Unmasking the nodal quasiparticle dynamics in cuprate superconductors using low-energy photoemission}, volume = 75, year = 2007 }