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| Authors | S. de Jong, F. Massee, Y. Huang, M. Gorgoi, F. Schaefers, J. Fink, T. Boothroyd, D. Prabhakaran, J.B. Goedkoop, M.S. Golden | | Title | High-resolution hard x-ray photoemission investigation of La2−2xSr1+2xMn2O7 (0.30<=x<0.50): Microscopic phase separation and surface electronic structure of a bilayer colossal magnetoresistance manganite |
| Journal | Physical Review B |
| Volume | 80 |
| Year | 2009 |
| Issue | 20 |
| Pages | 205108- |
| ISSN | 10980121 |
| Faculty | Faculty of Science |
| Institute/dept. | FNWI: Van der Waals-Zeeman Institute (WZI) |
| Abstract | Photoemission data taken with hard x-ray radiation on cleaved single crystals of the bilayered, colossal magnetoresistant manganite La2−2xSr1+2xMn2O7 (LSMO) with 0.30<=x<0.50 are presented. Making use of the increased bulk sensitivity upon hard x-ray excitation it is shown that the core-level footprint of the electronic structure of the LSMO cleavage surface is identical to that of the bulk. Furthermore, by comparing the core-level shift of the different elements as a function of doping level x, it is shown that microscopic phase separation is unlikely to occur for this particular manganite well above the Curie temperature. |
| Document type | Article |
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