%0 Journal Article %1 Zhou2004 %A Zhou, X. J. %A Yoshida, T. %A Lee, D.-H. %A Yang, W. L. %A Brouet, V. %A Zhou, F. %A Ti, W. X. %A Xiong, J. W. %A Zhao, Z. X. %A Sasagawa, T. %A Kakeshita, T. %A Eisaki, H. %A Uchida, S. %A Fujimori, A. %A Hussain, Z. %A Shen, Z.-X. %D 2004 %I American Physical Society %J Phys. Rev. Lett. %K imported %N 18 %P 187001 %R 10.1103/PhysRevLett.92.187001 %T Dichotomy between Nodal and Antinodal Quasiparticles in Underdoped $(La_2-xSr_x)CuO_4$ Superconductors %V 92 %X High resolution angle-resolved photoemission measurements on an underdoped (La2-xSrx)CuO4 system show that, at energies below 70 meV, the quasiparticle peak is well defined around the (π/2,π/2) nodal region and disappears rather abruptly when the momentum is changed from the nodal point to the (π,0) antinodal point along the underlying “Fermi surface.” It indicates that there is an extra low energy scattering mechanism acting upon the antinodal quasiparticles. We propose that this mechanism is the scattering of quasiparticles across the nearly parallel segments of the Fermi surface near the antinodes.

@article{Zhou2004, abstract = {High resolution angle-resolved photoemission measurements on an underdoped (La2-xSrx)CuO4 system show that, at energies below 70 meV, the quasiparticle peak is well defined around the (π/2,π/2) nodal region and disappears rather abruptly when the momentum is changed from the nodal point to the (π,0) antinodal point along the underlying “Fermi surface.” It indicates that there is an extra low energy scattering mechanism acting upon the antinodal quasiparticles. We propose that this mechanism is the scattering of quasiparticles across the nearly parallel segments of the Fermi surface near the antinodes.}, added-at = {2010-11-06T00:20:17.000+0100}, author = {Zhou, X. J. and Yoshida, T. and Lee, D.-H. and Yang, W. L. and Brouet, V. and Zhou, F. and Ti, W. X. and Xiong, J. W. and Zhao, Z. X. and Sasagawa, T. and Kakeshita, T. and Eisaki, H. and Uchida, S. and Fujimori, A. and Hussain, Z. and Shen, Z.-X.}, biburl = {https://www.bibsonomy.org/bibtex/2ade766b585d806881dc0c4b912e9e79b/nplumb}, doi = {10.1103/PhysRevLett.92.187001}, file = {:C\:\\Users\\Nick\\Documents\\Papers\\Zhou et al. - Dichotomy between nodal and antinodal quasiparticles in underdoped (La2-xSrx)CuO4.pdf:PDF}, interhash = {8ded9c8b69f2ad651cd23cda0114c41a}, intrahash = {ade766b585d806881dc0c4b912e9e79b}, journal = {Phys. Rev. Lett.}, keywords = {imported}, month = may, number = 18, numpages = {4}, owner = {Nick}, pages = 187001, publisher = {American Physical Society}, timestamp = {2010-11-06T00:20:17.000+0100}, title = {Dichotomy between Nodal and Antinodal Quasiparticles in Underdoped $(\text{La}_{2-x}\text{Sr}_x)\text{CuO}_4$ Superconductors}, volume = 92, year = 2004 }