Magnetotransport properties of La0.67Ca0.33MnO 3 with different grain sizes

• Main Authors: Ewe L.S., Hamadneh I., Salama H., Hamid N.A., Halim S.A., Abd-Shukor R.
• Other Authors: 58032789200
• Format: Article
• Published: 2023
• Subjects: Activation energy; Calcium; Charge carriers; Electric resistance; Grain size and shape; Insulation; Lanthanum; Magnetic fields; Manganese; Manganese compounds; Metal insulator transition; Oxide minerals; Perovskite; Density of state; Electrical resistivities; Energy of electrons; Grain sizes; High temperatures; Higher temperatures; Insulator-metal transition temperatures; Inter grains; Jahn-teller distortions; Magneto transports; Magneto-transport properties; Magnetoresistive; Metallic regimes; Small polaron hopping models; Spin tunneling; Temperature curves; Temperature dependences; Variable range hopping models; Zero fields; Curve fitting

The magnetotransport and magnetoresistive (MR) properties of manganese-based La0.67Ca0.33MnO3 perovskite with different grain sizes are reported. The electrical resistivity was measured as a function of temperature in magnetic fields of 0.5 and 1 T. The insulator-metal transition temperature, T IM,...