Title

Crossover of critical behavior in La0.7Ca0.3Mn1-xTixO3

RIS ID

31923

Publication Details

Luo, X., Zhu, X., Dou, S. Xue., Lei, H., Sun, Y., Song, W., Shi, D., Dai, J., Yang, z. Wang, B. (2010). Crossover of critical behavior in La0.7Ca0.3MnO3. Journal of Magnetism and Magnetic Materials, 322 (2), 242-246.

Abstract

Critical behavior of Ti-doped La0.7Ca0.3MnO3 ceramics are studied using magnetization methods. The results show that the paramagnetic–ferromagnetic transition is first order for the undoped sample, then for low-doping samples the mean-field model is suitable, and finally a 3D Heisenberg model is satisfied for higher doping samples. These findings demonstrate that the critical behavior of the magnetic transition for manganites is sensitive to Mn-site doping.

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Link to publisher version (DOI)

http://dx.doi.org/10.1016/j.jmmm.2009.09.005