Memory effects in superparamagnetic La0.6Pb0.4MnO3 nanoparticles |
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| Authors: | T. Zhang X. G. Li X. P. Wang Q. F. Fang M. Dressel |
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| Affiliation: | 1.Key Laboratory of Materials Physics, Institute of Solid State Physics, Chinese Academy of Sciences,Hefei,China;2.1.Physikalisches Institut, Universit?t Stuttgart,Stuttgart,Germany;3.Hefei National Laboratory for Physical Sciences at Microscale, and Department of Physics,University of Science and Technology of China,Anhui, Hefei,China |
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| Abstract: | Using different temperature and field protocols, the memory behaviors in the dc magnetization and magnetic relaxation are observed at temperature below blocking temperature TB = 93 K in weakly interacting manganite La0.6Pb0.4MnO3 nanoparticles. The results indicate that the magnetic dynamics of this nanoparticle system is strongly correlated with a wide distribution of particle relaxation times, which may arise from the particle weak interaction and distribution of the particle size. |
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