Review Article

Survey of the Thermodynamic Properties of the Charge Density Wave Systems

Figure 2

Color on line. Heat specific discontinuities at the CDW phase transition (Table 1) as a function of . TbTe3 (blue circle) [41]; ErTe3 (black circles TCDW1 = 260 K, TCDW2 = 155 K) [42]; TiSe2 (violet circles, TCDW=200 K with two different results given in [22, 23]); LaAgSb2 (red square TCDW1 = 210 K) [44]; NbSe3 (green circle TCDW1 = 145 K, TCDW2 = 48 K) [26]; 2H-NbSe2 (blue squares TCDW = 30 K) [19]; 2H-TaSe2 (red down triangle TCDW =120 K) and 2H-TaS2 (red up triangles TCDW = 80 K) mean field contribution given by [24]; TTF-TCNQ (black diamond symbol mean field contribution given in [35]); K0.3MoO3 (blue up triangles TCDW = 180 K) two different results given by [30]; (TaSe4)2I (brown diamond TCDW = 260 K [40]); Cr (light blue square [53]). Lines and are lineal temperature dependence.