Zobrazeno 1 - 10
of 89
pro vyhledávání: '"Csathy G"'
Publikováno v:
Physical Review RESEARCH 6, L022056 (2024) Letter
When interactions overcome disorder, integer quantum Hall plateaus support topological phases with different bulk insulators. In the center of the $\nu=1$ plateau the bulk is an Anderson-type insulator, while in the flanks of the plateau the bulk is
Externí odkaz:
http://arxiv.org/abs/2411.11141
Autor:
Huang, Haoyun, Hussain, Waseem, Myers, S. A., Pfeiffer, L. N., West, K. W., Baldwin, K. W., Csáthy, G. A.
Publikováno v:
Nature Communications 15, article number 1461 (2024)
The composite fermion theory opened a new chapter in understanding many-body correlations through the formation of emergent particles. The formation of two-flux and four-flux composite fermions is well established. While there are limited data linked
Externí odkaz:
http://arxiv.org/abs/2402.11408
Autor:
Shingla, V., Huang, Haoyun, Kumar, A., Pfeiffer, L. N., West, K. W., Baldwin, K. W., Csáthy, G. A.
Publikováno v:
Nature Physics, February 2023
Strong interactions and topology drive a wide variety of correlated ground states. Some of the most interesting of these ground states, such as fractional quantum Hall states and fractional Chern insulators, have fractionally charged quasiparticles.
Externí odkaz:
http://arxiv.org/abs/2302.02032
Publikováno v:
Cryogenics 119, 103367 (2021)
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:
http://arxiv.org/abs/2110.03788
Publikováno v:
Phys Rev B 104, 045311 (2021)
We report complex magnetotransport patterns of the $\nu=1$ 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 $\nu=1$ plat
Externí odkaz:
http://arxiv.org/abs/2109.14649
Publikováno v:
Communications Physics 4, 204 (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:
http://arxiv.org/abs/2109.06659
Autor:
Ro, Dohyung, Myers, S. A., Deng, N., Watson, J. D., Manfra, M. J., Pfeiffer, L. N, West, K. W., Csáthy, G. A.
Publikováno v:
prb 102, 115303 (2020)
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:
http://arxiv.org/abs/2102.11368
Publikováno v:
Physical Review B 102, 035140 (2020)
We study energy gaps of the $\nu=7/2$ and $\nu=5/2$ 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 suppression rate with alloy diso
Externí odkaz:
http://arxiv.org/abs/2009.01873
Autor:
Csathy, G. A, Jain, J. K.
Publikováno v:
Nature Physics News&Views opinion piece (2019)
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:
http://arxiv.org/abs/1908.08079
Autor:
Ro, Dohyung, Deng, N., Watson, J. D., Manfra, M. J., Pfeiffer, L. N, West, K. W., Csáthy, G. A.
Publikováno v:
prb 99, 201111(R) (2019)
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:
http://arxiv.org/abs/1906.04035