Study of the Critical Behavior in La<sub>0.67</sub>Ca<sub>0.18</sub>Sr<sub>0.15</sub>Mn<sub>0.98</sub>Ni<sub>0.02</sub>O<sub>3</sub> Manganite Oxide
In order to study the critical behavior of La0.67Ca0.18Sr0.15Mn0.98Ni0.02O3 near room temperature, magnetization measurements were performed. It can be seen from the findings that the specimens show a second order phase transition. Given the relative slope, the 3D-Ising model was deduced as the most...
Guardado en:
| Autores principales: | , , |
|---|---|
| Formato: | Capítulo de libro |
| Lenguaje: | inglés |
| Publicado: |
IntechOpen
2022
|
| Materias: | |
| Acceso en línea: | https://www.intechopen.com/chapters/81941 |
| Etiquetas: |
Sin Etiquetas, Sea el primero en etiquetar este registro!
|
| Sumario: | In order to study the critical behavior of La0.67Ca0.18Sr0.15Mn0.98Ni0.02O3 near room temperature, magnetization measurements were performed. It can be seen from the findings that the specimens show a second order phase transition. Given the relative slope, the 3D-Ising model was deduced as the most suitable model. It was found that the evaluated critical exponents were β = 0.320, γ = 1.296 and δ = 4.965 at TC = 319 K. These verify the Broadom’s scaling equation δ = 1 + γ/β, which demonstrates that our values have been proved valid. Near TC magnetization-strength-temperature, (M-μ0H-T) results fell in two curves according to critical exponents, obeying the single scaling equation Mμ0Hε=εβʄ±μ0H/εβ+γ with ε=T−Tc/Tc as the reduced temperature. |
|---|---|
| ISBN: | 978-1-80355-318-4 |
| DOI: | 10.5772/intechopen.105053 |