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Metal-Insulator Transition And Electroresistance In Ianthanum/Calcium Manganites La1-Xcaxmn03 (X=0-0.5) From Voltage-Current-Temperature Surfaces, Jonathan C. Knott, Daniel Pond, Roger A. Lewis
Metal-Insulator Transition And Electroresistance In Ianthanum/Calcium Manganites La1-Xcaxmn03 (X=0-0.5) From Voltage-Current-Temperature Surfaces, Jonathan C. Knott, Daniel Pond, Roger A. Lewis
Faculty of Engineering - Papers (Archive)
Of the perovskites, ABX3, a subset of special interest is the family in which the A site is occupied by a lanthanide ion, the B site by a transition metal and X is oxygen, as such materials often exhibit a large change in electrical resistance in a magnetic field, a phenomenon known as "colossal" magnetoresistance (MR). Two additional phenomena in this family have also drawn attention: the metal-insulator transition (MIT) and electroresistance (ER). The MIT is revealed by measuring resistance as a function of temperature, and observing a change in the sign of the gradient. ER – the dependence of …