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arXiv 0803.3228cond-mat.mes-hall
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高朗道能级下二维系统条纹相钉扎模的观测

Observation of pinning mode of stripe phases of 2D systems in high Landau levels

G. Sambandamurthy, R. M. Lewis, Han Zhu, Y. P. Chen, L. W. Engel, D. C. Tsui, L. N. Pfeiffer, K. W. West

摘要:

研究了半整数填充附近高朗道能级各向异性条纹相的射频对角电导率。在硬方向,其中较大的直流电阻率发生,频谱表现出惊人的共振,而在正交,容易的方向,没有共振是可辨别的。共振被解释为钉扎模式的条纹相。

英文摘要:

We study the radio-frequency diagonal conductivities of the anisotropic stripe phases of higher Landau levels near half integer fillings. In the hard direction, in which larger dc resistivity occurs, the spectrum exhibits a striking resonance, while in the orthogonal, easy direction, no resonance is discernable. The resonance is interpreted as a pinning mode of the stripe phase.

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