Disorder induced transition into a one-dimensional wigner glass |
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Authors: | Akhanjee Shimul Rudnick Joseph |
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Institution: | Department of Physics, UCLA, Los Angeles, California 90095-1547, USA. shimul@physics.ucla.edu |
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Abstract: | The destruction of quasi-long-range crystalline order as a consequence of strong disorder effects is shown to accompany the strict localization of all classical plasma modes of one-dimensional Wigner crystals at T=0. We construct a phase diagram that relates the structural phase properties of Wigner crystals to a plasmon delocalization transition recently reported. Deep inside the strictly localized phase of the strong disorder regime, we observe glasslike behavior. However, well into the critical phase with a plasmon mobility edge, the system retains its crystalline composition. We predict that a transition between the two phases occurs at a critical value of the relative disorder strength. This transition has an experimental signature in the ac conductivity as a local maximum of the largest spectral amplitude as a function of the relative disorder strength. |
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