Zobrazeno 1 - 10
of 626
pro vyhledávání: '"Scheller, C."'
Autor:
Patlatiuk, T., Scheller, C. P., Hill, D., Tserkovnyak, Y., Egues, J. C., Barak, G., Yacoby, A., Pfeiffer, L. N., West, K. W., Zumbühl, D. M.
Publikováno v:
Phys. Rev. Lett. 125, 087701 (2020)
We perform momentum-conserving tunneling spectroscopy using a GaAs cleaved-edge overgrowth quantum wire to investigate adjacent quantum Hall edge states. We use the lowest five wire modes with their distinct wave functions to probe each edge state an
Externí odkaz:
http://arxiv.org/abs/2002.05301
Here we review recent progress in cooling micro/nanoelectronic devices significantly below 10 mK. A number of groups worldwide are working to produce sub-millikelvin on-chip electron temperatures, motivated by the possibility of observing new physica
Externí odkaz:
http://arxiv.org/abs/2001.07419
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:
In Cleaner Logistics and Supply Chain October 2021 1
Autor:
Biesinger, D. E. F., Scheller, C. P., Braunecker, B., Zimmerman, J., Gossard, A. C., Zumbühl, D. M.
Publikováno v:
Phys. Rev. Lett. 115, 106804 (2015)
We report a thermally activated metastability in a GaAs double quantum dot exhibiting real-time charge switching in diamond shaped regions of the charge stability diagram. Accidental charge traps and sensor back action are excluded as the origin of t
Externí odkaz:
http://arxiv.org/abs/1505.03195
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
Autor:
Maradan, D., Casparis, L., Liu, T. -M., Biesinger, D. E. F., Scheller, C. P., Zumbühl, D. M., Zimmerman, J., Gossard, A. C.
Publikováno v:
J. Low Temp. Phys. 175, 784 (2014)
We present measurements of the electron temperature using gate defined quantum dots formed in a GaAs 2D electron gas in both direct transport and charge sensing mode. Decent agreement with the refrigerator temperature was observed over a broad range
Externí odkaz:
http://arxiv.org/abs/1401.2330
Autor:
Scheller, C. P., Liu, T. -M., Barak, G., Yacoby, A., Pfeiffer, L. N., West, K. W., Zumbühl, D. M.
Publikováno v:
Phys. Rev. Lett. 112, 066801 (2014)
We present transport measurements of cleaved edge overgrowth GaAs quantum wires. The conductance of the first mode reaches 2 e^2/h at high temperatures T > 10 K, as expected. As T is lowered, the conductance is gradually reduced to 1 e^2/h, becoming
Externí odkaz:
http://arxiv.org/abs/1306.1940
Autor:
Casparis, L., Meschke, M., Maradan, D., Clark, A. C., Scheller, C., Schwarzwalder, K. K., Pekola, J. P., Zumbuhl, D. M.
Publikováno v:
Rev. Sci. Instr. 83, 083903 (2012)
We present an improved nuclear refrigerator reaching 0.3 mK, aimed at microkelvin nanoelectronic experiments, and use it to investigate metallic Coulomb blockade thermometers (CBTs) with various resistances R. The high-R devices cool to slightly lowe
Externí odkaz:
http://arxiv.org/abs/1111.1972
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