Zobrazeno 1 - 10
of 276
pro vyhledávání: '"Meschke, M"'
We demonstrate shadow evaporation-based fabrication of high-quality ultrasmall normal metal -- insulator -- superconductor tunnel junctions where the thickness of the superconducting electrode is not limited by the requirement of small junction size.
Externí odkaz:
http://arxiv.org/abs/1709.09832
Publikováno v:
Appl. Phys. Lett. 111, 253105 (2017)
Cooling nanoelectronic devices below 10 mK is a great challenge since thermal conductivities become very small, thus creating a pronounced sensitivity to heat leaks. Here, we overcome these difficulties by using adiabatic demagnetization of \emph{bot
Externí odkaz:
http://arxiv.org/abs/1708.09491
Publikováno v:
Phys. Rev. Applied 10, 044068 (2018)
We demonstrate a novel approach to thermometry at the nanoscale exploiting a superconducting weak link. Such a weak link probed with nanosecond current pulses serves as a temperature sensing element and, due to the fast inherent dynamics, is capable
Externí odkaz:
http://arxiv.org/abs/1704.04762
Autor:
Dutta, B., Peltonen, J. T., Antonenko, D. S., Meschke, M., Skvortsov, M. A., Kubala, B., König, J., Winkelmann, C. B., Courtois, H., Pekola, J. P.
Publikováno v:
Phys. Rev. Lett. 119, 077701 (2017)
We report on combined measurements of heat and charge transport through a single-electron transistor. The device acts as a heat switch actuated by the voltage applied on the gate. The Wiedemann-Franz law for the ratio of heat and charge conductances
Externí odkaz:
http://arxiv.org/abs/1704.02622
Publikováno v:
Phys. Rev. Applied 6, 054011 (2016)
Micro-refrigerators that operate in the sub-kelvin regime are a key device in quantum technology. A well-studied candidate, an electronic cooler using Normal metal - Insulator - Superconductor (NIS) tunnel junctions offers substantial performance and
Externí odkaz:
http://arxiv.org/abs/1605.00830
Publikováno v:
Phil. Trans. R. Soc. A 374, 20150052 (2016)
We demonstrate experimentally a precise realization of Coulomb Blockade Thermometry (CBT) working at temperatures up to 60 K. Advances in nano fabrication methods using electron beam lithography allow us to fabricate a uniform arrays of sufficiently
Externí odkaz:
http://arxiv.org/abs/1507.05462
Publikováno v:
Nature Communications 7, 10977 (2016)
Nowadays superconductors serve in numerous applications, from high-field magnets to ultra-sensitive detectors of radiation. Mesoscopic superconducting devices, i.e. those with nanoscale dimensions, are in a special position as they are easily driven
Externí odkaz:
http://arxiv.org/abs/1506.09165
Autor:
Feshchenko, A. V., Casparis, L., Khaymovich, I. M., Maradan, D., Saira, O. -P., Palma, M., Meschke, M., Pekola, J. P., Zumbühl, D. M.
Publikováno v:
Phys. Rev. Applied 4, 034001 (2015)
We present a simple on-chip electronic thermometer with the potential to operate down to 1 mK. It is based on transport through a single normal-metal - superconductor tunnel junction with rapidly widening leads. The current through the junction is de
Externí odkaz:
http://arxiv.org/abs/1504.03841
Autor:
Gasparinetti, S., Viisanen, K. L., Saira, O. -P., Faivre, T., Arzeo, M., Meschke, M., Pekola, J. P.
Publikováno v:
Physical Review Applied 3, 014007 (2015)
We demonstrate radiofrequency thermometry on a micrometer-sized metallic island below 100 mK. Our device is based on a normal metal-insulator-superconductor tunnel junction coupled to a resonator with transmission readout. In the first generation of
Externí odkaz:
http://arxiv.org/abs/1405.7568
Autor:
Scheller, C. P., Heizmann, S., Bedner, K., Giss, D., Meschke, M., Zumbühl, D. M., Zimmerman, J. D., Gossard, A. C.
Publikováno v:
Appl. Phys. Lett. 104, 211106 (2014)
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 ~1
Externí odkaz:
http://arxiv.org/abs/1403.6205