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arXiv 1806.09863cond-mat.mtrl-sci
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离子液体选通装置可实现稳定的测量并降低低温下的电子不均匀性

Ionic-liquid-gating setup for stable measurements and reduced electronic inhomogeneity at low temperatures

Yamaguchi Takahide, Yosuke Sasama, Hiroyuki Takeya, Yoshihiko Takano, Taisuke Kageura, Hiroshi Kawarada

摘要:

离子液体门控技术由于其对载流子密度的广泛可控性,可以应用于寻找低温下的新物理现象。然而,由于冷冻离子液体和固体靶材料的热膨胀系数之间的巨大差异,离子液体门控场效应晶体管在冷却时通常是易碎的。在本文中,我们提供了一种实用的技术来设置用于低温测量的离子液体门控场效应晶体管。它允许稳定的测量,并通过减少冷冻离子液体中产生的剪切应变来减少电子不均匀性。

英文摘要:

The ionic-liquid-gating technique can be applied to the search for novel physical phenomena at low temperatures because of its wide controllability of the charge carrier density. Ionic-liquid gated field-effect transistors are often fragile upon cooling, however, because of the large difference between the thermal expansion coefficients of frozen ionic liquids and solid target materials. In this paper, we provide a practical technique for setting up ionic-liquid-gated field-effect transistors for low-temperature measurements. It allows stable measurements and reduces the electronic inhomogeneity by reducing the shear strain generated in frozen ionic liquid.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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