| Autor: |
T, Claesson, M, Månsson, C, Dallera, F, Venturini, C, De Nadaï, N B, Brookes, O, Tjernberg |
| Rok vydání: |
2003 |
| Zdroj: |
Physical review letters. 93(13) |
| ISSN: |
0031-9007 |
| Popis: |
We have performed an angle resolved photoemission study on a single crystal of the optimally electron doped (n-type) cuprate superconductor Nd2-xCexCuO4 (x=0.15) at a photon energy of 400 eV. The Fermi surface is mapped out and is, in agreement with earlier measurements, of hole-type with the expected Luttinger volume. However, comparing with previous low energy measurements, we observe a different Fermi surface shape and a different distribution of spectral intensity around the Fermi surface contour. The observed Fermi surface shape indicates a stronger electron correlation in the bulk as compared to the surface. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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