Exchange interaction and magnetoresistance in La2/3Ca1/3MnO3: experiment and models
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The magnetization M(T) and electrical resistivity ρ(T) of a La 2/3Ca1/3MnO3 film have been studied in the temperature range 5K≤T≤320K in the magnetic field intervals 10Oe≤H≤400Oe and 0≤H≤50kOe, respectively. It is found that the M(T)/M(0) value is larger than that predicted by the conventional molecular field model below the Curie point T=267K, and that the lnρ(T) dependence is close to linear in the temperature range 80K
author list (cited authors)
Beznosov, A. B., Belevtsev, B. I., Fertman, E. L., Desnenko, V. A., Naugle, D. G., Rathnayaka, K., & Parasiris, A.