Structural,electrical, magnetic,elastic and anelastic behaviour of Nd0.6Ca0.4MnO3 |
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| Authors: | K. Raju G. Lalitha K.V. Sivakumar P. Venugopal Reddy |
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| Affiliation: | 1. Department of Physics, Osmania University, Hyderabad-500 007, India;2. Department of Physics, Kottam College of Engineering, Chinntekur, Kurnool-518 218, India;1. Laboratoire de Physique des Matériaux, Faculté des Sciences de Sfax, B.P. 1171, 3000 Sfax, Tunisia;2. ITODYS, Université Paris Diderot, CNRS UMR 7086, 15 rue Jean Antoine de Baïf, 75205 Paris, France;3. ICMPE, Université Paris-Est, CNRS UMR 7182, 2 rue Henri Dunant, 94320 Thiais, France;1. Institute of Natural Science and Mathematics, Ural Federal University, Yekaterinburg, Russia;2. School of Advanced Materials and Chemistry and Physics of Materials Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Bangalore, India;3. Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore, 560012, India;1. Department of Chemistry, Visva-Bharati University, Santiniketan, West Bengal 731235, India;2. Discipline of Physics, Indian Institute of Information Technology, Design & Manufacturing Jabalpur, Dumna Airport Road, Madhya Pradesh 482005, India;3. Department of Chemistry, Jadavpur University, Kolkata 700032, India |
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| Abstract: | ![]()
With a view to understanding the structural, electrical and magnetic, elastic and anelastic behaviour of charge ordered Nd0.6Ca0.4MnO3, systematic investigations were undertaken. The sample was synthesized by a sol–gel route. The sample was characterized by X-ray diffraction (XRD) using a Rietveld refinement technique and was found to have orthorhombic structure with space group Pnma. A study on the variation of electrical resistivity with temperature has been carried out in the range 100–300 K and it was found to exhibit a field induced transition. The ac susceptibility studies show two transition temperatures, which are attributed to charge ordering and a Néel transition. Internal friction and longitudinal modulus studies were carried out using the composite oscillator technique. An effort has been made to explain the observed anomalous behaviour by a qualitative model. |
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