Silver-epoxy microwave filters and thermalizers for millikelvin experiments
Silver-epoxy microwave filters and thermalizers for millikelvin experiments
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DOI：
10.1063/1.4880099
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发表时间：
2014-05-26
影响因子：
4
通讯作者：
Gossard, Arthur C.
中科院分区：
文献类型：
--
作者：
Scheller, Christian P.;Heizmann, Sarah;Gossard, Arthur C.
我们提出的银环氧树脂滤波器结合了良好的微波衰减与有效的导线热化，适用于低温量子输运实验。在最小化寄生电容后，衰减在约150 MHz以上达到>= 100 dB，并且当添加电容器时，衰减已经在约30 MHz以上。我们用GaAs量子点测量器件的电子温度，并展示了优异的滤波性能。在改进样品保持器和增加第二过滤级后，我们在金属库仑阻塞温度计中获得了低至7.56+/-0.2mK的电子温度。(C)2014年作者。所有文章内容，除非另有说明，是根据知识共享署名3.0未移植许可证许可。
We present silver-epoxy filters combining excellent microwave attenuation with efficient wire thermalization, suitable for low temperature quantum transport experiments. Upon minimizing parasitic capacitances, the attenuation reaches >= 100 dB above approximate to 150 MHz and-when capacitors are added-already above approximate to 30 MHz. We measure the device electron temperature with a GaAs quantum dot and demonstrate excellent filter performance. Upon improving the sample holder and adding a second filtering stage, we obtain electron temperatures as low as 7.56+/-0.2 mK in metallic Coulomb blockade thermometers. (C) 2014 Author(s). All article content, except where otherwise noted, is licensed under a Creative Commons Attribution 3.0 Unported License.