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首页> 外文会议>International Conference on High Magnetic Fields in Semiconductor Physics; 20040802-06; Tallahassee,FL(US) >QUANTUM PHASES IN PARTIALLY FILLED LANDAU LEVELS
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QUANTUM PHASES IN PARTIALLY FILLED LANDAU LEVELS

机译：LANDAU部分填充的量子相

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摘要

We compare the energies of different electron solids, such as bubble crystals with triangular and square symmetry and stripe phases, to those of correlated quantum liquids in partially filled intermediate Landau levels. Multiple transitions between these phases when varying the filling of the top-most partially filled Landau level explain the observed reentrance of the integer quantum Hall effect. The phase transitions are identified as first-order. This leads to a variety of measurable phenomena such as the phase coexistence between a Wigner crystal and a two-electron bubble phase in a Landau-level filling-factor range 4.15 approx < ν approx < 4.26, which has recently been observed in transport measurements under micro-wave irradiation.
机译：我们将不同电子固体的能量（例如具有三角形和正方形对称和条纹相的气泡晶体）与部分填充的中等朗道能级中的相关量子液体的能量进行比较。当改变最顶部部分填充的朗道能级的填充时，这些相之间的多个过渡解释了观察到的整数量子霍尔效应的重入。相变被识别为一阶。这导致各种可测量的现象，例如在朗道级填充因子范围为4.15近似<ν近似<4.26的情况下，维格纳晶体和两电子气泡相之间的相共存，最近已在以下条件下的传输测量中观察到微波照射。

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