Zobrazeno 1 - 10
of 50
pro vyhledávání: '"Gabor Csathy"'
Publikováno v:
Communications Physics, Vol 4, Iss 1, Pp 1-7 (2021)
The interplay of strong Coulomb interactions and of topology is currently under intense scrutiny in various condensed matter and atomic systems. One example of this interplay is the phase competition of fractional quantum Hall states and the Wigner s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::97b713910dc3bf64d40fcccea287d066
https://doaj.org/article/cf2f4ac02a7c4927bba0660922639493
https://doaj.org/article/cf2f4ac02a7c4927bba0660922639493
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
Publikováno v:
Physical Review B. 104
We report complex magnetotransport patterns of the $\ensuremath{\nu}=1$ integer quantum Hall state in a GaAs/AlGaAs sample from the newest generation with a record high electron mobility. The reentrant integer quantum Hall effect in the flanks of the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ca2a3eec66b865dca5dc68dad96f83dc
https://doi.org/10.1103/physrevb.104.045311
https://doi.org/10.1103/physrevb.104.045311
Autor:
Dohyung Ro, Michael J. Manfra, Ken W. West, Nianpei Deng, Gabor Csathy, Seth A. Myers, Loren Pfeiffer, John Watson
We study multielectron bubble phases in the $N=2$ and $N=3$ Landau levels in a high mobility GaAs/AlGaAs sample. We found that the longitudinal magnetoresistance versus temperature curves in the multielectron bubble region exhibit sharp peaks, irresp
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::02b19d6a5c83159a3e4a173391fbfbbc
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:
Gabor Csathy, Katherine A. Schreiber
Due to its extremely rich phase diagram, the two-dimensional electron gas exposed to perpendicular magnetic fields has been the subject of intense and sustained study. One particularly interesting problem in this system is that of the half-filled Lan
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fa62ce272523cf17b625aa77a073c2b0
http://arxiv.org/abs/2003.09645
http://arxiv.org/abs/2003.09645
Publikováno v:
Cryogenics. 119:103367
At the lowest temperatures achieved in dilution refrigerators, ruthenium oxide resistance thermometers often saturate and therefore lose their sensitivity. In an effort to extend the range of such temperature sensors, we built a thermometer which mai
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7adf16d2f7531115421a47e6f1f7f929
https://doi.org/10.1016/j.cryogenics.2021.103367
https://doi.org/10.1016/j.cryogenics.2021.103367
Autor:
Nianpei Deng, Gabor Csathy, Dohyung Ro, Loren Pfeiffer, John Watson, Michael J. Manfra, Ken W. West
Stripe-like and bubble-like patterns spontaneously form in numerous physical, chemical, and biological systems when competing long-range and short-range interactions banish uniformity. Stripe-like and the related nematic morphology are also under int
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::aecb58cabfc9f3a6a7b1895ae54b3d6f
Autor:
Jainendra K. Jain, Gabor Csathy
A rich pattern of fractional quantum Hall states in graphene double layers can be naturally explained in terms of two-component composite fermions carrying both intra- and inter-layer vortices.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5a325069907acce1435ed3334384f4ad