Anomalous electronic structure and pseudogap effects in Nd1.85Ce0.15CuO4 |
| |
| Authors: | Armitage N P Lu D H Kim C Damascelli A Shen K M Ronning F Feng D L Bogdanov P Shen Z X Onose Y Taguchi Y Tokura Y Mang P K Kaneko N Greven M |
| |
| Institution: | Department of Physics, Applied Physics and Stanford Synchrotron Radiation Laboratory, Stanford University, Stanford, California 94305, USA. |
| |
| Abstract: | We report a high-resolution angle-resolved photoemission spectroscopic study of the electron-doped ( n-type) cuprate superconductor Nd1.85Ce0.15CuO4. We observe regions along the Fermi surface where the near- E(F) intensity is suppressed and the spectral features are broad in a manner reminiscent of the high-energy "pseudogap" in the underdoped p-type (hole doped) cuprates. However, instead of occurring near the (pi,0) region, as in the p-type materials, this pseudogap falls near the intersection of the underlying Fermi surface with the antiferromagnetic Brillouin zone boundary. |
| |
| Keywords: | |
| 本文献已被 PubMed 等数据库收录！ |
|
