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Dielectric Studies of the Soft Mode and Goldstone Mode in Twist Grain Boundary Phases

Dielectric studies are performed on twist grain boundary phases in the frequency range 100 Hz to 1 MHz at different temperatures and bias. The sample investigated shows TGBC*-TGBA*--N*- BP- I phase sequence. The dielectric measurements are performed near the transition TGBA*-TGBC*. Without DC bias, the dielectric absorption spectra indicates one relaxation process for the TGBC* phase and two re [...]

- Manisha Chaudhry1*, Anjuli Khandelwal2, S. S. Bawa3 *