THERMOELECTRIC-POWER OF YBA2CU3O6.2 CERAMICS UNDER HYDROSTATIC-PRESSURE UP TO 13 KBAR

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KRAIDENOV, VF
ITSKEVICH, ES
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FIZIKA NIZKIKH TEMPERATUR | 1994年 / 20卷 / 01期
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O59 [应用物理学];
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摘要：
Temperature dependence of thermopower alpha in ceramics YBa2Cu3O6.2+/-0.05 is studied in a 4.2-300 K temperature region under hydrostatic pressure up to 13 kbar. It is found, that alpha is positive in the whole studied ranges of T and P and has no maximum. Superconductivity is not observed and electrical conductivity is of a semiconducting behavior at every T and P. Pressure reduces alpha and rho. The average value is d In alpha/dP- -3.10(-5) bar-1, very similar to the behavior of Y-specimens with x = 6.6. investigated by us before.
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页码：76 / 77
页数：2
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