Advances in Condensed Matter Physics / 2019 / Article / Fig 4

Review Article

Survey of the Thermodynamic Properties of the Charge Density Wave Systems

Figure 4

Color on line. Experimental discontinuities (absolute values) of the velocity of the longitudinal C11 and C33 shown as a function of TCDW (Tables 1 and 2). Results obtained with TbTe3 (blue circle TCDW = 330 K) [41], ErTe3 (black circles TCDW1 = 260 K and TCDW2 = 155 K) [42], and HoTe3 (brown circles TCDW1 = 280 K and TCDW2 = 120 K) [43]. Results obtained by Young and velocity measurements NbSe3 (green circle) [27], 2H-NbSe2 (blue squares) [16, 17], TiSe2 (violet circle) [20], 2H-TaSe2 (red down triangle) [16], K0.3MoO3 (blue up triangle [31]), (TaSe4)2I (brown diamond) [39], TTF-TCNQ (black diamonds) with a large discrepancy (~0.0001, 0.01 shown by the dotted black line [36, 37]), and Cr (light blue [54]).

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