Pinned Wigner crystals
نویسندگان
چکیده
منابع مشابه
Pinned bilayer Wigner crystals with pseudospin magnetism
We study a model of pinned bilayer Wigner crystals WC and focus on the effects of interlayer coherence IC on pinning. We consider both a pseudospin ferromagnetic WC FMWC with IC and a pseudospin antiferromagnetic WC AFMWC without IC. Our central finding is that a FMWC can be pinned more strongly due to the presence of IC. One specific mechanism is through the disorder induced interlayer tunneli...
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Wigner crystals (WCs) are electronic phases peculiar to low-density systems, particularly in the uniform electron gas. Since its introduction in the early twentieth century, this model has remained essential to many aspects of electronic structure theory and condensed-matter physics. Although the (lowest-energy) ground-state WC (GSWC) has been thoroughly studied, the properties of excited-state...
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We reexamine a long-standing problem of the finite-frequency conductivity of a weakly pinned twodimensional classical Wigner crystal. In this system an inhomogeneously broadened absorption line ~pinning mode! centered at disorderand magnetic-field-dependent frequency vp is known to appear. We show that the relative linewidth Dvp /vp of the pinning mode is of the order of 1 in weak magnetic fiel...
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We examine the dynamics of driven classical Wigner solids interacting with quenched disorder from charged impurities. For strong disorder, the initial motion is plastic, in the form of crossing winding channels. For increasing drive, there is a reordering into a moving Wigner smectic with the electrons moving in separate 1D channels. These different dynamic phases can be related to the conducti...
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Colloidal particles interacting via a long-range repulsion can, in contrast to hard-sphere systems, exhibit crystalline ordering at low volume fraction. Here we experimentally investigate the structure and properties of such "colloidal Wigner crystals." We find a body-centered-cubic crystalline phase at volume fractions of ϕ≳15%, which exhibits large fluctuations of individual particles from th...
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ژورنال
عنوان ژورنال: Physical Review B
سال: 2001
ISSN: 0163-1829,1095-3795
DOI: 10.1103/physrevb.65.035312