The Magnetic/Electrical Phase Diagram of Cr-Doped Antiperovskite Compounds GaCFe_3−𝑥Cr_𝑥 (0≤𝑥≤0.9)

Figure 6

(Color online) (a)–(c) Temperature-dependent heat capacity 𝐶_𝑃(𝑇) at zero magnetic field for GaCFe_3−𝑥Cr_𝑥 (0.7≤𝑥≤0.9) between 6.7 and 70 K; inset shows the plots of 𝐶_𝑃(𝑇)/𝑇 versus 𝑇² below 20 K and the solid line represents the fitting results according to (1). (d) The fitting parameter 𝛾 as a function of 𝑥 for GaCFe_3−𝑥Cr_𝑥; the left and right insets show the parameters 𝛽and 𝛿 as a function of 𝑥, respectively.

(a)

(b)

(c)

(d)