论文标题
基于g dayem桥的属性yba $ _2 $ cu $ _3 $ o $ _ {7-δ} $超导量子干扰设备和磁力计
Properties of Grooved Dayem Bridge based YBa$_2$Cu$_3$O$_{7-δ}$ Superconducting Quantum Interference Devices and Magnetometers
论文作者
论文摘要
The transport properties of a YBa$_2$Cu$_3$O$_{7-δ}$ superconducting quantum interference device (SQUID) based on grooved Dayem bridge weak links are studied as a function of temperature: at high temperatures ($60~$K$<T<T_\mathrm{c}=89$~K) the weak links show properties similar to SNS junctions, while at低于60 〜k的温度像短日桥一样行为。使用这些设备，我们已经制造了鱿鱼磁力仪，其平面拾取循环：$ t = 77 $ 〜K，磁场白噪声水平低至$ 63 $ 〜ft/$ \ sqrt {\ sqrt {\ mathrm {hz}}} $。
The transport properties of a YBa$_2$Cu$_3$O$_{7-δ}$ superconducting quantum interference device (SQUID) based on grooved Dayem bridge weak links are studied as a function of temperature: at high temperatures ($60~$K$<T<T_\mathrm{c}=89$~K) the weak links show properties similar to SNS junctions, while at temperatures below 60~K the weak links behave like short Dayem bridges. Using these devices, we have fabricated SQUID magnetometers with galvanically coupled in-plane pick-up loops: at $T=77$~K, magnetic field white noise levels as low as $63$~fT/$\sqrt{\mathrm{Hz}}$ have been achieved.
