论文标题

在超级流体氦4中采用钨丝的滞后特性的记忆装置-4

Memory device employing hysteretic properties of a tungsten filament in superfluid helium-4

论文作者

Shih, Che-Chi, Huang, Ming-Huei, Chang, Pang-Chia, Yu, Po-Wei, Jian, Wen-Bin, Kono, Kimitoshi

论文摘要

浸入超级流体氦气的钨丝具有强大的滞后$ i $ - $ v $特征。通过增加施加的电压,在过渡电压下发生明显的电流下降,在该电压下,灯丝进入非欧宝热状态,并被氦气鞘覆盖。返回欧姆状态的发生在较低的电压下,由于气体鞘的热传导不良。因此,$ i $ - $ v $特征是强烈的滞后。使用稳定的滞后窗口来制造一种新型的存储器设备,该设备证明了快速切换和稳定的读数。

A tungsten filament immersed in superfluid helium has strong hysteretic $I$-$V$ characteristics. By increasing the applied voltage, a remarkable current drop occurs at a transition voltage, at which the filament enters a non-ohmic hot state and becomes covered with a helium gas sheath. The return to an ohmic state occurs at a lower voltage because of the poor heat conduction of the gas sheath. Hence, the $I$-$V$ characteristic is strongly hysteretic. The stable hysteresis window was employed to fabricate a novel memory device, which demonstrated fast switching and stable reading.

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