Observation on meta-stability of thulium nitrate crystal by using electric measurements |
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Authors: | Riki Kawashima Takashi Okubo Hiroshi Isoda |
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Affiliation: | Department of Materials Science and Engineering, Muroran Institute of Technology, 27-1 Mizomoto-cho, Muroran 050-8585, Japan |
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Abstract: | Frequency dependence of ac conductivity from 1 to 105 Hz and time series of the conductivity at 2 kHz were measured along c-axis of thulium nitrate crystal, Tm(NO3)36H2O at temperatures from 203.15 to 293.15 K. The meta-stability was observed. The frequency spectra of the conductivity were similar to those in disorder system. Aging effect was observed. Non-periodic instability (burst) was found. Non-linear dynamical property was characterized by 1/f noise spectrum, limit cycle in return map and dependence of correlation exponent on embedding dimension. |
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Keywords: | Thulium nitrate crystal Ac conductivity Time series data Non-linear dynamical property |
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