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首页> 外文期刊>Physica, B. Condensed Matter >Characterization of ZYX graphite for studies of two-dimensional He-3 at ultra-low temperatures
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Characterization of ZYX graphite for studies of two-dimensional He-3 at ultra-low temperatures

机译:ZYX石墨的表征,用于在超低温下研究二维He-3

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So far, theoretically predicted two-dimensional (2D) superfluidity in monolayer He-3 has not been observed yet. This may be due to the smaller single crystalline size (similar or equal to 10 nm) of Grafoil substrate than the expected superfluid coherence length (greater than or equal to 100 nm), or pair breaking caused by trapped atoms on substrate heterogeneity. To eliminate these problems, we have made an NMR sample cell using ZYX grade exfoliated graphite substrate. This substrate has at least 10 times larger crystalline size than Grafoil. NMR measurements are now under way to search for possible 2D and quasi 2D superfluidity in He-3 thin films. (C) 2003 Elsevier Science B.V. All rights reserved. [References: 10]
机译:到目前为止,还没有观察到理论上预测的单层He-3中的二维(2D)超流动性。这可能是由于Grafoil基板的单晶尺寸(近似或等于10 nm)小于预期的超流体相干长度(大于或等于100 nm),或者是由于基板异质性中捕获的原子导致的成对断裂。为了消除这些问题,我们使用ZYX级片状石墨基底制成了NMR样品池。该基材的晶体尺寸至少是Grafoil的10倍。目前正在进行NMR测量,以寻找He-3薄膜中可能的2D和准2D超流动性。 (C)2003 Elsevier Science B.V.保留所有权利。 [参考:10]

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