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Figure 11
Frequency dependence of σ′ at several temperatures, corresponding to the first heating cycles (298 550 K) for α-LAS Yb 1.4 mol% (top) and β-LAS (bottom) single crystals. The solid lines are the conductivity fits given by equation (1) . |
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Figure 11
Frequency dependence of σ′ at several temperatures, corresponding to the first heating cycles (298 550 K) for α-LAS Yb 1.4 mol% (top) and β-LAS (bottom) single crystals. The solid lines are the conductivity fits given by equation (1) . |