Table 1 Magnetic and thermodynamic properties of Sr₂Cu(Te_0.5W_0.5)O₆, Sr₂CuTeO₆ and Sr₂CuWO₆

T_max (K)

52

74

86

χ_max (10^-3emu/mol)

2.55

2.24

1.55

μ_eff (μ_B)

1.87

1.87

1.90

Θ_cw (K)

−71

−80

−165

T_N (K)

<0.019

29²⁴

24¹⁷

k

—

[½ ½ 0]²⁴

[0 ½ ½]²³

f = |Θ_cw|/T_N

>3700

≈3

≈7

γ (mJ/molK²)

54.2

2.2

0.7

β_D (K)

395

381

361