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Phase diagram of La_(5/8-y)Nd_(y)Ca_(3/8)MnO₃ manganites
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Phase diagram of La_(5/8-y)Nd_(y)Ca_(3/8)MnO₃ manganites
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We report a detailed study of the electric transport and magnetic properties of the LaNdCaMnO manganite system. Substitution of LaIII by smaller NdIII ions, reduces the mean ionic radius of the A site ion. We have studied samples in the entire range between rich La and rich Nd compounds. Results of DC magnetization and resistivity show that doping destabilize the FM character of the pure La compound and triggers the formation of a phase separated state at intermediate doping. We have also found evidence of a dynamical behaviour within the phase separated state. A phase diagram is constructed, summarizing the effect of chemical substitution on the system.
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