Zobrazeno 1 - 10
of 13
pro vyhledávání: '"Ethan Kleinbaum"'
Publikováno v:
Journal of Low Temperature Physics. 201:170-178
We present a sensitive voltage amplifier suited for measurements of source impedances in the k $$\Omega$$ range at dilution refrigerator temperatures. The circuit is based on a commercial dc SQUID, an impedance matching transformer, and it works on t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::59617c15c11151000f403f767d2edc1f
https://doi.org/10.1007/s10909-020-02388-4
https://doi.org/10.1007/s10909-020-02388-4
Publikováno v:
The Physics Teacher. 58:28-31
We describe the design and manufacture of a classroom set of devices that simultaneously measures and records the resistivity of four conductive elements (superconductor, semiconductor, metal alloy, and pure metal) as a function of temperature. The u
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9ec68c0d2964ab33e7e5283183e224b6
https://doi.org/10.1119/1.5141967
https://doi.org/10.1119/1.5141967
We study energy gaps of the $\ensuremath{\nu}=7/2$ and $\ensuremath{\nu}=5/2$ fractional quantum Hall states in a series of two-dimensional electron gases containing alloy disorder. We found that gaps at these two filling factors have the same suppre
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0526b76f1823daa85192e89b916d55c0
http://arxiv.org/abs/2009.01873
http://arxiv.org/abs/2009.01873
Autor:
Ethan Kleinbaum, Stephen Aplin Lyon
Publikováno v:
Physical review letters. 121(23)
We have developed a method to probe the temperature of surface state electrons (SSE) above a superfluid Helium-4 surface using the Seebeck effect. In contrast to previously used SSE thermometry, this technique does not require detailed knowledge of t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0fa6b61a25e1f0d7f133d93af0906f3b
https://pubmed.ncbi.nlm.nih.gov/30576163
https://pubmed.ncbi.nlm.nih.gov/30576163
Publikováno v:
Physical Review B. 97
Reports of weak local minima in the magnetoresistance at $\ensuremath{\nu}=2+3/5, 2+3/7, 2+4/9, 2+5/9, 2+5/7$, and $2+5/8$ in the second Landau level of the electron gas in GaAs/AlGaAs left open the possibility of fractional quantum Hall states at th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5f960570c82a1af947e595e8f6bae2d2
https://doi.org/10.1103/physrevb.97.241105
https://doi.org/10.1103/physrevb.97.241105
Autor:
Stephen Aplin Lyon, Andrew Houck, Abraham Asfaw, Ethan Kleinbaum, Andras Gyenis, Thomas Hazard
We describe sensitive magnetometry using lumped-element resonators fabricated from a superconducting thin film of NbTiN. Taking advantage of the large kinetic inductance of the superconductor, we demonstrate a continuous resonance frequency shift of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fce241fedf70620099ed46a3503bd473
We report transport measurements of electrons on helium in a microchannel device where the channels are 200 nm deep and 3 $\mu$m wide. The channels are fabricated above amorphous metallic Ta$_{40}$W$_{40}$Si$_{20}$, which has surface roughness below
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::203b3f6941667244ea6a68077ae85fde
Publikováno v:
Measurement Science and Technology. 29:105903
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b69935770e45bbdc71c80f4d7d0c195b
https://doi.org/10.1088/1361-6501/aadbe1
https://doi.org/10.1088/1361-6501/aadbe1
Publikováno v:
Physical Review Letters. 114
In the region of the second Landau level several theories predict fractional quantum Hall states with novel topological order. We report the opening of an energy gap at the filling factor $\ensuremath{\nu}=3+1/3$, firmly establishing the ground state
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3dfcd26c03a02fa781914e66722c7dba
https://doi.org/10.1103/physrevlett.114.076801
https://doi.org/10.1103/physrevlett.114.076801
Publikováno v:
Review of Scientific Instruments. 88:034902
We present a dc Superconducting QUantum Interference Device (SQUID)-based current amplifier with an estimated input referred noise of only 2.3 fA/Hz. Because of such a low amplifier noise, the circuit is useful for Johnson noise thermometry of quantu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::996e25d0a2088880211ce655713f8c35
https://doi.org/10.1063/1.4978961
https://doi.org/10.1063/1.4978961