| Autor: |
Radaelli, PG, Cox, DE, Marezio, M, Cheong, SW, Schiffer, PE, Ramirez, AP |
| Jazyk: |
angličtina |
| Rok vydání: |
2016 |
| Popis: |
The magnetic transitions in La1-xCaxMnO3 (x=0.25, 0.50) were studied by synchrotron x-ray and neutron powder diffraction. For x=0.25 the large V=0.13% at TC is due to the simultaneous insulator-to-metal transition. For x=0.50 below TC we observed a drastic decrease of the b axis and an increase of the a and c axes, due to a Jahn-Teller distortion of MnO6 octahedra. The ferromagnetic transition for x=0.50 is accompanied by an unusual peak broadening terminating at TN. This newly observed behavior can be explained assuming that multiple intermediate phases are simultaneously present in the sample. © 1995 The American Physical Society. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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