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17944365100
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note
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To reduce the complexity due to grain boundaries on the measured κ and σ, we used the same, optimized synthesis condition for all the samples.
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28
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17944368821
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note
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σ(T) of x = 0.3 and 0.4 clearly shows local minima (slope changes) at the percolation points without showing metallic behavior just below the points. This originates from the drastic T dependence of σ of the insulating CO domains, as confirmed by the simulation results of x = 0.3 in Fig. 4.
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17944368590
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note
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To calculate f values at 10 K, field-cooled M values were used. These field-cooled values are consistent with saturated magnetic moments from M(H) curves.
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41
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17944365433
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note
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Since the difference between the predicted κ(T) values with t = 2 and 4 is relatively small, it was difficult to estimate the correct value of t for κ.
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