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arXiv 0801.0854cond-mat.str-elcond-mat.stat-mech
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二级相变附近的局域荷电态和相分离

Localized charged states and phase separation near second order phase transition

V. V. Kabanov, R. F. Mamin, T. S. Shaposhnikova

摘要:

局域化的电荷态和相位分离的框架中描述的相变的唯象金-朗道理论。库仑相互作用决定了电荷分布和相分离态的特征长度。在电荷局域化范围内,由于介电常数大,额外电荷密度小,使得伴随电荷偏析的相分离成为可能。计算了相图,并估计了分相态的能量增益。库仑相互作用的作用被阐明。

英文摘要:

Localized charged states and phase segregation are described in the framework of the phenomenological Ginzburg-Landau theory of phase transitions. The Coulomb interactions determines the charge distribution and the characteristic length of the phase separated states. The phase separation with charge segregation becomes possible because of the large dielectric constant and the small density of extra charge in the range of charge localization. The phase diagram is calculated and the energy gain of the phase separated state is estimated. The role of the Coulomb interaction is elucidated.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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