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Perturbed angular correlations investigations on YMnO3 multiferroic manganite |
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| Authors: | T M Mendon?a A M L Lopes J N Gon?alves J G Correia P B Tavares V S Amaral C Darie J P Araujo |
| Institution: | 1. IFIMUP and IN—Institute of Nanosciences and Nanotechnologies, Porto, Portugal 6. Institut Neel, CNRS, Grenoble, France 2. Centro de Fisica Nuclear da Universidade de Lisboa, Lisboa, Portugal 3. Departamento de Fisica and CICECO, Universidade de Aveiro, Aveiro, Portugal 4. Instituto Tecnologico e Nuclear, Sacavem, Portugal 5. CQVR—Departamento de Quimica, Univ. Tras-os-Montes e Alto Douro, Vila Real, Portugal |
| Abstract: | The Perturbed Angular Correlation (PAC) technique was applied to study the yttrium local environment in YMnO3 multiferroic manganite. The electric field gradients (EFG) at the Y site have been measured as function of temperature, covering both ferroelectric and magnetic transitions. The results were compared with point charge model (PCM) calculations. The experimental results show two different EFG distributions for all temperatures. Only one can be directly attributed to the yttrium crystalline site in the hexagonal structure. |
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