%0 Journal Article %1 Koralek2006 %A Koralek, J. D. %A Douglas, J. F. %A Plumb, N. C. %A Sun, Z. %A Fedorov, A. V. %A Murnane, M. M. %A Kapteyn, H. C. %A Cundiff, S. T. %A Aiura, Y. %A Oka, K. %A Eisaki, H. %A Dessau, D. S. %D 2006 %I American Physical Society %J Phys. Rev. Lett. %K imported myown %N 1 %P 017005 %R 10.1103/PhysRevLett.96.017005 %T Laser Based Angle-Resolved Photoemission, the Sudden Approximation, and Quasiparticle-Like Spectral Peaks in Bi$_2$Sr$_2$CaCu$_2$O$_8+\delta$ %V 96 %X A new low photon energy regime of angle-resolved photoemission spectroscopy is accessed with lasers and used to study the high Tc superconductor Bi2Sr2CaCu2O8+δ. The low energy increases bulk sensitivity, reduces background, and improves resolution. With this we observe spectral peaks which are sharp on the scale of their binding energy—the clearest evidence yet for quasiparticles in the normal state. Crucial aspects of the data such as the dispersion, superconducting gaps, and the bosonic coupling kink are found to be robust to a possible breakdown of the sudden approximation.

@article{Koralek2006, abstract = {A new low photon energy regime of angle-resolved photoemission spectroscopy is accessed with lasers and used to study the high Tc superconductor Bi2Sr2CaCu2O8+δ. The low energy increases bulk sensitivity, reduces background, and improves resolution. With this we observe spectral peaks which are sharp on the scale of their binding energy—the clearest evidence yet for quasiparticles in the normal state. Crucial aspects of the data such as the dispersion, superconducting gaps, and the bosonic coupling kink are found to be robust to a possible breakdown of the sudden approximation.}, added-at = {2010-11-06T00:14:39.000+0100}, author = {Koralek, J. D. and Douglas, J. F. and Plumb, N. C. and Sun, Z. and Fedorov, A. V. and Murnane, M. M. and Kapteyn, H. C. and Cundiff, S. T. and Aiura, Y. and Oka, K. and Eisaki, H. and Dessau, D. S.}, biburl = {https://www.bibsonomy.org/bibtex/2c2e72781c52de58b8e6bd5a895527663/nplumb}, doi = {10.1103/PhysRevLett.96.017005}, file = {:C\:\\Users\\Nick\\Documents\\Papers\\Koralek et al - Laser based angle-resolved photoemission, the sudden approximation, and quasiparticle-like spectral peaks in BSCCO.pdf:PDF}, interhash = {ec873ebebb495a84a3dac5d9643b1d52}, intrahash = {c2e72781c52de58b8e6bd5a895527663}, journal = {Phys. Rev. Lett.}, keywords = {imported myown}, month = Jan, number = 1, numpages = {4}, owner = {Nick}, pages = 017005, publisher = {American Physical Society}, timestamp = {2010-11-06T04:59:07.000+0100}, title = {Laser Based Angle-Resolved Photoemission, the Sudden Approximation, and Quasiparticle-Like Spectral Peaks in Bi$_2$Sr$_2$CaCu$_2$O$_{8+\delta{}}$}, volume = 96, year = 2006 }