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Inhomogeneous ferrimagnetic-like behavior in Gd2/3Ca1/3MnO3 single crystals |
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| Authors: | N Haberkorn S Larrégola G Nieva |
| Institution: | a Comisión Nacional de Energía Atómica, Centro Atómico Bariloche, S. C. de Bariloche, 8400 R.N., Argentina b Instituto Balseiro, Universidad Nacional de Cuyo and Comisión Nacional de Energía Atómica, S. C. de Bariloche, 8400 R.N., Argentina c Facultad de Química, Bioquímica y Farmacia, Universidad Nacional de San Luis, Chacabuco y Pedernera, San Luis 5700, Argentina d Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, 5000 Córdoba, Argentina |
| Abstract: | We present a study of the magnetic properties of Gd2/3Ca1/3MnO3 single crystals at low temperatures, showing that this material behaves as an inhomogeneous ferrimagnet. In addition to small saturation magnetization at 5 K, we have found history dependent effects in the magnetization and the presence of exchange bias. These features are compatible with microscopic phase separation in the clean Gd2/3Ca1/3MnO3 system studied. |
| Keywords: | 75 50 Gg 75 30 Kz |
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