Structural and magnetic ordering in La0.6Ca0.4MnO3 |
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| Affiliation: | 1. Solid State Physics Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400 085, India;2. Novel Materials and Structural Chemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400 085, India;1. Forschungszentrum Jülich GmbH, Jülich Centre for Neutron Science (JCNS) at Heinz Maier-Leibnitz Zentrum (MLZ), Garching, Germany;2. Forschungszentrum Jülich GmbH, Jülich Centre for Neutron Science (JCNS) at Spallation Neutron Source (SNS), Oak Ridge, USA;3. Forschungszentrum Jülich GmbH, Jülich Centre for Neutron Science (JCNS-1) and Institute for Complex Systems (ICS-1), Jülich, Germany;4. Oak Ridge National Laboratory, Spallation Neutron Source (SNS), Oak Ridge, USA;1. Department of Physics, National Chung Cheng University, Chia-Yi 621, Taiwan;2. Institute of Physics, Academia Sinica, Taipei 115, Taiwan;3. Department of Applied Physics, Tunghai University, Taichung 407, Taiwan;4. Department of Mechanical Engineering, NTUST, Taipei 106, Taiwan;1. Key Laboratory of Materials Physics, Institute of Solid State Physics, Chinese Academy of Sciences, Hefei 230031, People''s Republic of China;2. High Magnetic Field Laboratory, Chinese Academy of Sciences, Hefei 230031, People''s Republic of China;3. Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210093, People''s Republic of China;1. Institut für Festkörper- und Materialphysik, Technische Universität Dresden, 01062 Dresden, Germany;2. Institut für Angewandte Physik, Technische Universität Dresden, 01062 Dresden, Germany;3. IFW Dresden, 01069 Dresden, Germany;1. Department of Mechanical Engineering, Colorado State University, Fort Collins, CO 80523, United States;2. School of Advanced Materials Discovery, Colorado State University, Fort Collins, CO 80523, United States;3. Department of Chemistry, Colorado State University, Fort Collins, CO 80523, United States;4. Department of Materials Science and Engineering, University of Connecticut, Storrs, CT 06269-3136, United States;5. Institute of Materials Science, University of Connecticut, Storrs, CT 06269-3136, United States |
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| Abstract: | The structural and magnetic ordering in La0.6Ca0.4MnO3 has been studied by neutron powder diffraction as a function of temperature between 15 and 300 K. The para-ferromagnetic transition at T∼250 K is accompanied by significant structural distortions in the form of octahedral Mn–O6 rotations. At 15 K, the total refined ferromagnetic moment on the Mn site was obtained as 3.1 μB, in reasonable agreement with the total expected average moment of mixed Mn3+/Mn4+ matrix. |
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