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- W1674252976 abstract "The magnetic, resistive and thermal properties of the phase-separated compound La0.27Nd0.4Ca0.33MnO3 have been experimentally studied. The sample is found to experience a charge/orbital ordering transition at ∼175 K and an antiferromagnetic (AFM) transition at ∼156 K without a magnetic field. A magnetic field stabilizes the ferromagnetic (FM) order and the field-induced FM phase coexists with the AFM phase under a field below 2 T in the temperature range below TC ≈ 110 K. However, the magnetic entropy change accompanying the AFM–FM transition is negligibly small when TC TN. A general relation between resistivity and magnetization, ρ = A0T exp[(e − 800m 2 )/T ] (m = normalized magnetization), is established for the paramagnetic phase, which is also applicable to other compounds with different characters, such as the La0.67Ca0.33MnO3 film and the La0.474Bi0.193Ca0.33Mn0.994Cr0.006O3 and Eu0.55Sr0.45MnO3 ceramics. In the FM state, the resistivity is quite sensitive to the change of spin alignment and exhibits an exponential decrease with magnetization ρ = ρ0 exp(−22.7m). Field-induced phase separation is believed to be responsible for the distinct properties of La0.27Nd0.4Ca0.33MnO3. (Some figures in this article are in colour only in the electronic version)" @default.
- W1674252976 created "2016-06-24" @default.
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- W1674252976 date "2008-07-21" @default.
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- W1674252976 title "Magnetic, thermal and transport properties of phase-separated La0.27Nd0.4Ca0.33MnO3" @default.
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- W1674252976 doi "https://doi.org/10.1088/0953-8984/20/32/325242" @default.
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