Evidence for instability in charge ordering Nd0.5Sr0.5MnO3 |
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Authors: | Jiyu Fan Yue Ying Yuheng Zhang |
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Institution: | a Department of Physics, Sejong University, Seoul, 143-747, Republic of Korea b Hefei High Magnetic Field Laboratory, University of Science and Technology of China, Hefei 230026, People’s Republic of China |
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Abstract: | The transport properties and magnetic phase transitions of charge ordering manganites Nd0.5Sr0.5MnO3 have been investigated. From resistivity measurements, a continuous increase of resistivity upon the thermal cycling occurs at , and shows an instable behavior in the system. The experimental results of magnetization and electron-spin-resonance spectra indicate that the ferromagnetic phase and antiferromagnetic phase coexist in a broad temperature region. We think that the origin of the instability stems from an inhomogeneous strain yielded in the ferromagnetic interface, due to the competition among different phases. |
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Keywords: | 75 47 Lx 75 60 Ej |
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