Advances in Condensed Matter Physics / 2019 / Article / Fig 3

Review Article

Survey of the Thermodynamic Properties of the Charge Density Wave Systems

Figure 3

Color on line. Stress dependence derived from Ehrenfest eq. (4) with the thermal expansion coefficient discontinuities (Tables 1 and 2) measured at the CDW phase transitions as a function of TCDW. along the axis in TbTe3 at TCDW1 = 330 K (blue circle) and ErTe3 at TCDW2 = 150 K (black circle) deduced from the thermal expansion measurements using X-rays technique reported by Ru et al. [8]. Results with TiSe2 (violet circle) TCDW = 200 K [20]; 2H-TaSe2 (pink down triangle) [25]; NbSe3 (green circle TCDW = 145 K) [25]; 2H-NbSe2 (blue square) [18, 19]; K0.3MoO3 (blue up triangle TCDW = 180 K) [31, 32]; (TaSe4)2I (brown diamond) [39]; LaAgSb2 (red square TCDW1 = 210 K ) [44]; and Cr (light blue square [54]). Lines and are lineal temperature dependence.

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