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|Title: ||Magneto-transport studies on (Pr1/3Sm2/3)(2/3)A(1/3)MnO(3) (A = Ca, Sr and Ba) compounds|
|Authors: ||ASTHANA, S|
|Issue Date: ||2004|
|Publisher: ||IOP PUBLISHING LTD|
|Citation: ||JOURNAL OF PHYSICS-CONDENSED MATTER, 16(29), 5297-5307|
|Abstract: ||The magnetic and transport properties of (Pr1/3Sm2/3)(2/3)A(1/3)MnO(3) (A = Ca, Sr and Ba) compounds, prepared by the citrate-gel route, have been investigated. These compounds are found to crystallize in the orthorhombic structure. Charge ordering transport behaviour is indicated only in the Ca-substituted compound. The Sr- and Ba-substituted compounds show a metal-insulator transition and semiconducting-like behaviour, respectively. The magnetoresistance is highest in the Ba-substituted compound. All three samples show irreversibility in magnetization as a function of temperature in zero-field cooled (ZFC) and field cooled (FC) plots. Non-saturating magnetization, even at 5 K and 4 T field, is observed in Ca- as well Ba-substituted compounds.|
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