%0 Journal Article %1 Ingle2005 %A Ingle, N. J. C. %A Shen, K. M. %A Baumberger, F. %A Meevasana, W. %A Lu, D. H. %A Shen, Z.-X. %A Damascelli, A. %A Nakatsuji, S. %A Mao, Z. Q. %A Maeno, Y. %A Kimura, T. %A Tokura, Y. %D 2005 %I American Physical Society %J Phys. Rev. B %K imported %P 205114 %R 10.1103/PhysRevB.72.205114 %T Quantitative analysis of Sr$_2$RuO$_4$ angle-resolved photoemission spectra: Many-body interactions in a model Fermi liquid %V 72 %X Angle-resolved photoemission spectroscopy (ARPES) spectra hold a wealth of information about the many-body interactions in a correlated material. However, the quantitative analysis of ARPES spectra to extract the various coupling parameters in a consistent manner is extremely challenging, even for a model Fermi liquid system. We propose a fitting procedure which allows quantitative access to the intrinsic line shape, deconvolved of energy and momentum resolution effects, of the correlated two-dimensional material Sr2RuO4. In correlated two-dimensional materials, we find an ARPES linewidth that is narrower than its binding energy, a key property of quasiparticles within Fermi liquid theory. We also find that when the electron-electron scattering component is separated from the electron-phonon and impurity scattering terms, it decreases with a functional form compatible with Fermi liquid theory as the Fermi energy is approached. In combination with the previously determined Fermi surface, these results give a complete picture of a Fermi liquid system via ARPES. Furthermore, we show that the magnitude of the extracted imaginary part of the self-energy is in remarkable agreement with DC transport measurements.

@article{Ingle2005, abstract = {Angle-resolved photoemission spectroscopy (ARPES) spectra hold a wealth of information about the many-body interactions in a correlated material. However, the quantitative analysis of ARPES spectra to extract the various coupling parameters in a consistent manner is extremely challenging, even for a model Fermi liquid system. We propose a fitting procedure which allows quantitative access to the intrinsic line shape, deconvolved of energy and momentum resolution effects, of the correlated two-dimensional material Sr2RuO4. In correlated two-dimensional materials, we find an ARPES linewidth that is narrower than its binding energy, a key property of quasiparticles within Fermi liquid theory. We also find that when the electron-electron scattering component is separated from the electron-phonon and impurity scattering terms, it decreases with a functional form compatible with Fermi liquid theory as the Fermi energy is approached. In combination with the previously determined Fermi surface, these results give a complete picture of a Fermi liquid system via ARPES. Furthermore, we show that the magnitude of the extracted imaginary part of the self-energy is in remarkable agreement with DC transport measurements.}, added-at = {2010-11-06T00:14:39.000+0100}, author = {Ingle, N. J. C. and Shen, K. M. and Baumberger, F. and Meevasana, W. and Lu, D. H. and Shen, Z.-X. and Damascelli, A. and Nakatsuji, S. and Mao, Z. Q. and Maeno, Y. and Kimura, T. and Tokura, Y.}, biburl = {https://www.bibsonomy.org/bibtex/231e861406d2ed95dc39f0c5be653ee8e/nplumb}, doi = {10.1103/PhysRevB.72.205114}, file = {:C\:\\Users\\Nick\\Documents\\Papers\\Ingle et al. - Quantitative analysis of Sr2RuO4 ARPES spectra.pdf:PDF}, interhash = {215d71ded2ddf49f7defe2a14fc47219}, intrahash = {31e861406d2ed95dc39f0c5be653ee8e}, journal = {Phys. Rev. B}, keywords = {imported}, owner = {Nick}, pages = 205114, publisher = {American Physical Society}, timestamp = {2010-11-06T00:14:41.000+0100}, title = {Quantitative analysis of Sr$_2$RuO$_4$ angle-resolved photoemission spectra: Many-body interactions in a model Fermi liquid}, volume = 72, year = 2005 }