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    Please use this identifier to cite or link to this item: http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/72743

    Title: Direct measurement of spatial distortions of charge density waves in K0.3MoO3
    Authors: Du, Chao-hung;Lee, Yen-Ru;Lo, Chung-Yu;Lin, Hsiu-Hau;Chang, Shih-Lin;Tang, Mau-Tsu;Stetsko, Yuri P.;Lee, Jey-Jau
    Contributors: 淡江大學物理學系
    Keywords: potassium compounds;charge density waves;distortion;X-ray scattering;X-ray diffraction;electrical conductivity;deformation;order-disorder transformations;solid-liquid transformations
    Date: 2006-06
    Issue Date: 2013-05-31 11:31:48 (UTC+8)
    Publisher: College Park: American Institute of Physics
    Abstract: Using x-ray scattering and multiple diffraction on a charge density wave (CDW) material, K0.3MoO3, under applied voltages, we demonstrate that the occurrence of nonlinear conductivity caused by the periodic media is through the internal deformation of the CDW lattice, i.e., a phase jump of 2π, as the applied voltage exceeds the threshold. From the evolution of the measured peak width of satellite reflections as a function of the field strength, we also report that the CDW lattice can be driven to move and undergo a dynamic phase transition from the disordered pinning state to ordered moving solid state and then to disordered moving liquid.
    Relation: Applied Physics Letters 88(24), 241916(3pages)
    DOI: 10.1063/1.2213198
    Appears in Collections:[Graduate Institute & Department of Physics] Journal Article

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