Advances in Condensed Matter Physics / 2019 / Article / Tab 1

Review Article

Survey of the Thermodynamic Properties of the Charge Density Wave Systems

Table 1

Materials (2D CDW) TbTe3, HoTe3, and ErTe3 rare earth tritellurides. Molar volumes are given in cm3, specific heat discontinuities in J/molK, thermal expansion discontinuities in K−1, elastic velocity discontinuities in , and measured and calculated elastic constants in GPa and ratios.

MaterialsMolar volume
cm3
TCDW
K
Specific heat

J/molK
Thermal expansion
coefficient along the axis
αc (K−1)
Elastic velocity
decrease
∆V/V
Elastic constant
Measured
GPa
calculated
ρV2
GPa
Ratio
Calculated
/measured

TbTe3713303
[41]
-1.2x10−5 [8]along the or axis
-0.01 [41]
C33~ 5025~0.5

HoTe370.4280
120
Along the axis
-0.025 [43]
-0.001
C33~ 50

ErTe369.7260
150
1
[42]
0.5
-3.5x10−6 [8]along the or axis
-0.015 [42]
-0.001
C33~ 5020~0.4

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