The Internal Bias of Be-Doped Rochelle Salt

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概要

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• Impurity effects on the polarization reversal in Rochelle salt have been investigated. When Be ions are introduced into the crystal, a double hysteresis loop is observed, indicating that an internal bias is formed in the crystal. The magnitude of the internal bias decreases exponentially with time; the time constant τ being given by an Arrhenius relation, τ=τ_0exp(E/kT). The internal bias can be eliminated by applying an ac field for a long time, and then the crystal shows the double or biased single loop depending on the domain structure. The origin of the internal bias is ascribed mainly to "polar anisotropy" produced by the interaction between spontaneous polarization and the impurity vacancy complexes, and the internal stress around the impurity is likely to play a subsidiary role.

• 社団法人応用物理学会の論文
• 1974-10-05

著者

• Imasaki Masahide

  Department Of Electrical Engineering Kyushu Institute Of Technology

• NOGAMI Gyoichi

  Department of Electrical Engineering, Kyushu Institute of Technology

• ISHIGAKI Nobutaka

  Department of Electrical Engineering, Kyushu Institute of Technology

• Nogami Gyoichi

  Department Of Electrical Engineering Kyushu Institute Of Tecgnology

• Ishigaki Nobutaka

  Department Of Electrical Engineering Kyushu Institute Of Technology:(present Address)oki Research La

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• Electric Field Dependence of Variance in Helicoidal Pitch Distribution and of Light Transmittance in the Ferroelectric Liquid Crystal DOBAMBC
• Experimental Study of Nonlinear Waves on Interface between Two Liquid Phases with Chemical Reaction
• The Internal Bias of Be-Doped Rochelle Salt
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• Switching Transients in Rochelle Salt
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