%0 Journal Article %1 she05 %A Shen, Kyle M. %A Ronning, F. %A Lu, D. H. %A Baumberger, F. %A Ingle, N. J. C. %A Lee, W. S. %A Meevasana, W. %A Kohsaka, Y. %A Azuma, M. %A Takano, M. %A Takagi, H. %A Shen, Z. X. %D 2005 %J Science %K high-tc, theory %N 5711 %P 901--904 %R 10.1126/science.1103627 %T Nodal Quasiparticles and Antinodal Charge Ordering in Ca2-xNaxCuO2Cl2 %U http://dx.doi.org/10.1126/science.1103627 %V 307 %X Understanding the role of competing states in the cuprates is essential for developing a theory for high-temperature superconductivity. We report angle-resolved photoemission spectroscopy experiments which probe the 4a0 x 4a0 charge-ordered state discovered by scanning tunneling microscopy in the lightly doped cuprate superconductor Ca2-xNaxCuO2Cl2. Our measurements reveal a marked dichotomy between the real- and momentum-space probes, for which charge ordering is emphasized in the tunneling measurements and photoemission is most sensitive to excitations near the node of the d-wave superconducting gap. These results emphasize the importance of momentum anisotropy in determining the complex electronic properties of the cuprates and places strong constraints on theoretical models of the charge-ordered state. 10.1126/science.1103627

@article{she05, abstract = {Understanding the role of competing states in the cuprates is essential for developing a theory for high-temperature superconductivity. We report angle-resolved photoemission spectroscopy experiments which probe the 4a0 x 4a0 charge-ordered state discovered by scanning tunneling microscopy in the lightly doped cuprate superconductor Ca2-xNaxCuO2Cl2. Our measurements reveal a marked dichotomy between the real- and momentum-space probes, for which charge ordering is emphasized in the tunneling measurements and photoemission is most sensitive to excitations near the node of the d-wave superconducting gap. These results emphasize the importance of momentum anisotropy in determining the complex electronic properties of the cuprates and places strong constraints on theoretical models of the charge-ordered state. 10.1126/science.1103627}, added-at = {2008-06-25T19:30:29.000+0200}, author = {Shen, Kyle M. and Ronning, F. and Lu, D. H. and Baumberger, F. and Ingle, N. J. C. and Lee, W. S. and Meevasana, W. and Kohsaka, Y. and Azuma, M. and Takano, M. and Takagi, H. and Shen, Z. X.}, biburl = {https://www.bibsonomy.org/bibtex/297a0d31d7f6cd2bd4c26c93c828a3139/jgl}, citeulike-article-id = {2700543}, doi = {10.1126/science.1103627}, interhash = {82d3b7ad5ba8b268474eae5b07013177}, intrahash = {97a0d31d7f6cd2bd4c26c93c828a3139}, journal = {Science}, keywords = {high-tc, theory}, month = {February}, number = 5711, pages = {901--904}, posted-at = {2008-04-22 12:11:59}, priority = {2}, timestamp = {2008-06-25T19:31:19.000+0200}, title = {Nodal Quasiparticles and Antinodal Charge Ordering in Ca2-xNaxCuO2Cl2}, url = {http://dx.doi.org/10.1126/science.1103627}, volume = 307, year = 2005 }