Zobrazeno 1 - 10
of 43
pro vyhledávání: '"Kundu, Hemanta Kumar"'
Autor:
Biswas, Sourav, Kundu, Hemanta Kumar, Bhattacharyya, Rajarshi, Umansky, Vladimir, Heiblum, Moty
Publikováno v:
Physical Review Letters 132, 076301 (2024)
Interferometry is a vital tool for studying fundamental features in the quantum Hall effect (QHE). For instance, Aharonov-Bohm (AB) interference in a quantum Hall interferometer can probe the wave-particle duality of electrons and quasiparticles. Her
Externí odkaz:
http://arxiv.org/abs/2306.02908
Publikováno v:
Physical Review Letters 131, 096302 (2023)
The remarkable Cooper-like pairing phenomenon in the Aharonov-Bohm interference of a Fabry-Perot interferometer (FPI)$\rm{-}$operating in the integer quantum Hall regime$\rm{-}$remains baffling. Here, we report the interference of paired electrons em
Externí odkaz:
http://arxiv.org/abs/2304.05140
Autor:
Kaur, Simrandeep, Kundu, Hemanta Kumar, Kumar, Sumit, Dogra, Anjana, Narayanan, Rajesh, Vojta, Thomas, Bid, Aveek
Publikováno v:
New J. Phys. 26 083001 (2024)
In this letter, we report our observation of an extraordinarily rich phase diagram of a LaScO$_3$/SrTiO$_3$ heterostructure. Close to the superconducting transition temperature, the system hosts a superconducting critical point of the Infinite-random
Externí odkaz:
http://arxiv.org/abs/2206.10215
The fractional quantum Hall states have long been predicted to be a testing ground of fractional (anyonic) exchange statistics. These topological states harbor quasiparticles with fractional charges of both abelian and non-abelian characters. The qua
Externí odkaz:
http://arxiv.org/abs/2203.04205
Publikováno v:
Phys. Rev. Materials 5, 124003 (2021)
Layered van der Waals materials are exciting as they often host multiple, competing electronic phases. This article reports experimental observation of the co-existence of insulating and metallic phases deep within the commensurate charge density wav
Externí odkaz:
http://arxiv.org/abs/2112.11680
Autor:
Baidya, Prakiran, Sahani, Divya, Kundu, Hemanta Kumar, Kaur, Simrandeep, Tiwari, Priya, Bagwe, Vivas, Jesudasan, John, Narayan, Awadhesh, Raychaudhuri, Pratap, Bid, Aveek
Publikováno v:
Physical Review B, 104, 174510 (2021)
We report the experimental observation of Ising superconductivity in 3-dimensional NbSe2 stacked with single-layer MoS2. The angular dependence of the upper critical magnetic field and the temperature dependence of the upper parallel critical field c
Externí odkaz:
http://arxiv.org/abs/2111.06681
Autor:
Biswas, Sourav, Bhattacharyya, Rajarshi, Kundu, Hemanta Kumar, Das, Ankur, Heiblum, Moty, Umansky, Vladimir, Goldstein, Moshe, Gefen, Yuval
Publikováno v:
Nature Physics 18, 1476-1481 (2022)
The fractional charge of quasiparticles is a fundamental feature of quantum Hall effect (QHE) States. The charge has long been measured via shot-noise at moderate temperatures ($T$>30mK), with the Fano factor $F=e^*/e$ revealing the charge $e^*$ of t
Externí odkaz:
http://arxiv.org/abs/2111.05575
Autor:
Dutta, Bivas, Yang, Wenmin, Melcer, Ron Aharon, Kundu, Hemanta Kumar, Heiblum, Moty, Umansky, Vladimir, Oreg, Yuval, Stern, Ady, Mross, David
Publikováno v:
Science 375, 193-197 (2022)
Quantum Hall states - the progenitors of the growing family of topological insulators -- are rich source of exotic quantum phases. The nature of these states is reflected in the gapless edge modes, which in turn can be classified as integer - carryin
Externí odkaz:
http://arxiv.org/abs/2101.01419
In this article, we present evidence for the existence of vortex-solid/glass (VG) to vortex-fluid (VF) transition in a type-II superconductor (SC), NbN. We probed the VG to VF transition in both 2D and 3D films of NbN through studies of magnetoresist
Externí odkaz:
http://arxiv.org/abs/2009.10339
Autor:
Kundu, Hemanta Kumar, Amin, Kazi Rafsanjani, Jesudasan, John, Raychaudhuri, Pratap, Mukerjee, Subroto, Bid, Aveek
We explore the effects of sample dimensionality on vortex pinning in a type-II, low-$T_C$, s-wave superconductor, NbN, in the presence of a perpendicular magnetic field, $H$. We find significant differences in the phase diagrams in the magnetic field
Externí odkaz:
http://arxiv.org/abs/2009.09236