نتایج جستجو برای: curie temperature
تعداد نتایج: 455467 فیلتر نتایج به سال:
Theoretical prediction of Curie temperature ( T C ) is vital importance for designing spintronic devices in two-dimensional (2D) ferromagnetic materials. Herein, based on the extensive investigation Monte Carlo simulations, we summarize and propose an improved method to estimate more precisely, which includes different contributions multiple near-neighbor interactions. Using monolayer CrI 3 as ...
Inelastic neutron scattering was used to study the temperature (T) dependence of the lattice excitations in La 0.7Ca 0.3MnO (3). An optical Jahn-Teller phonon exhibits continuous but anomalous damping with increasing temperature in the ferromagnetic-metallic phase and collapses above the Curie temperature T(C) (240 K). We attribute this anomaly to the growing dynamic phase segregation as T-->T(...
We try to design a simple model exhibiting self-organized criticality, which is amenable to a rigorous mathematical analysis. To this end, we modify the generalized Ising Curie-Weiss model by implementing an automatic control of the inverse temperature. For a class of symmetric distributions whose density satisfies some integrability conditions, we prove that the sum Sn of the random variables ...
Different sizes of three-dimensional PbSe quantum dots have been synthesized for the study of orbital magnetic susceptibilities. Two types of orbital susceptibilities have been found, including the Curie susceptibility and finite-size corrections to the Landau susceptibility. The Curie term of a quantum dot manifests itself in the temperature dependence of magnetic susceptibility at low tempera...
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