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首页> 外文期刊>Physica, B. Condensed Matter >Photoresponse of YBa2Cu3O7-x films in the flux creep regime
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Photoresponse of YBa2Cu3O7-x films in the flux creep regime

机译：YBa2Cu3O7-x薄膜在通量蠕变状态下的光响应

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摘要

We have studied the effect of illumination on the flux creep in an epitaxial YBa2Cu3O7-x film in a wide range of temperatures. A ring-shaped film was used to obtain voltage-current (V-I) characteristics without applying electrical contacts. It is shown that illumination substantially alters the derivative d ln Y/dI. The effect is particularly strong at low temperatures where d ln V/dI for the illuminated sample is almost an order of magnitude smaller than that without illumination. A temperature increase weakens the effect which vanishes at approximately 35 K. The effect of illumination on d ln V/dI is practically independent of the light intensity between 5 and 100 klux and it is still remarkable even for illuminations as weak as 30 lux. (C) 2000 Elsevier Science B.V. All rights reserved. [References: 2]
机译：我们已经研究了在宽温度范围内照明对外延YBa2Cu3O7-x薄膜中通量蠕变的影响。使用环形膜无需施加电接触即可获得电压-电流（V-I）特性。示出了照明基本上改变了导数d ln Y / dI。在低温下，这种效果尤其明显，在这种情况下，被照样品的d ln V / dI几乎比不被照亮的样品小ln。温度升高会减弱在约35 K时消失的影响。照明对d ln V / dI的影响实际上与5至100 klux之间的光强度无关，即使在弱至30 lux的照明下，照明效果仍然显着。 （C）2000 Elsevier Science B.V.保留所有权利。 [参考：2]

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