Study of Dynamics in Inhomogeneous States by Temperature-Modulated Optical Reflectivity Measurement: Application to Perovskite Manganites
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概要
- 論文の詳細を見る
We developed an experimental system for measuring temperature-modulated optical reflectivity with a frequency up to 20 kHz to study the dynamics of inhomogeneity in a crystal. By this system, we studied doped perovskite manganites, in which a ferromagnetic metallic phase and a (short-ranged) charge-ordered phase coexist near the Curie temperature ($T_{\text{C}}$). We found an appreciable frequency dependence of the temperature-modulated reflectivity around $T_{\text{C}}$. This result can be explained by the dynamics of the domains in the two coexisting phases, i.e., by the relaxation time to reach a new equilibrium state of the two-phase coexistence when the temperature is modulated.
- Physical Society of Japanの論文
- 2010-01-15
著者
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Suzuki Takehito
Department Of Electrical And Electronic Engineering Ibaraki University
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KATSUFUJI Takuro
Department of Advanced Materials Science, University of Tokyo
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Saiki Yuki
Department Of Applied Biology Faculty Of Textile Science And Technology Shinshu University
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Masuzawa Junichi
Department Of Physics Waseda University
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Saiki Yuki
Department of Physics, Waseda University, Shinjuku, Tokyo 169-8555, Japan
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Katsufuji Takuro
Department of Physics, Waseda University, Shinjuku, Tokyo 169-8555, Japan
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Suzuki Takehito
Department of Physics, Waseda University, Shinjuku, Tokyo 169-8555, Japan
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