Electron Transport Properties of Eu(Cu_1 − xAg_x)₂Si₂ (0 ≤ x ≤ 1): Initiation of Transition Eu²⁺ ↔ Eu^2.41+ in the Intermediate Valence State

Figure 3

X-ray EuL_III-absorption spectra of Eu(Cu_1 − xAg_x)₂Si₂ alloys at T = 300 K, х = 0.0 (1), 0.05 (2), 0.125 (3), 0.25 (4), 0.50 (5), 0.75 (6), 0.875 (7), and 1 (8). 1-EuCu₂Si₂, 2-Eu(Cu_0.95Ag_0.05)₂Si₂, 3-Eu(Cu_0.875Ag_0.125)₂Si₂, 4-Eu(Cu_0.75Ag_0.25)₂Si₂, 5-Eu(Cu_0.50Ag_0.50)₂Si₂, 6-Eu(Cu_0.25Ag_0.75)₂Si₂, 7-Eu(Cu_0.125Ag_0.875)₂Si₂, and 8-EuAg₂Si₂.