Results 51 to 60 of about 48,281 (287)

Formation of 2D Electron Gas at a Non‐Polar Perovskite Oxide Interface: SrHfO3/BaSnO3

Advanced Functional Materials, EarlyView.
Through experiments and Poisson‐Schrödinger simulations, 2D electron gas formed at the non‐polar SrHfO3/BaSnO3 interface is observed. A large conduction band offset enables modulation doping by the intrinsic deep donors in SrHfO3, resulting in carrier confinement in BaSnO3 without relying on interfacial polarization or termination‐layer engineering ...
Jongkyoung Ko, Oliver Bierwagen, Wonwoo Suh, Jeewon B. Choi, Celesta S. Chang, Kookrin Char   +5 more
wiley   +1 more source

Infinite Symmetry in the Fractional Quantum Hall Effect

, 1993
We have generalized recent results of Cappelli, Trugenberger and Zemba on the integer quantum Hall effect constructing explicitly a ${\cal W}_{1+\infty}$ for the fractional quantum Hall effect such that the negative modes annihilate the Laughlin wave ...
Bakas I, Balachandran A P, Bellissard J, Cappelli A, Cristofano C, Cristofano C, Fröhlich J, Fubini S, Kohmoto M, Lopez A, M Flohr, Prange R E, R Varnhagen, Stone M, Stone M, Stone M, Verlinde E, Wen X G, Wen X G, Witten E   +19 more
core   +1 more source

2D Phosphorene‐Decorated Ni‐Rich Layered Cathodes for High‐Power and High‐Energy Li‐Ion Batteries

Advanced Functional Materials, EarlyView.
A conformal coating of 2D phosphorene nanosheets is decorated on Li[Ni0.8Co0.1Mn0.1]O2 cathodes to enhance fast charge–discharge performance and structural stability under high mass loading and low carbon content. As a result, it exhibits improved power capability, cycle stability, and suppressed structural degradation, offering a promising strategy ...
Jihoe Lee, Kijeong Nam, Bonyoung Ku, Myungeun Choi, Min‐kyung Cho, Su Yeon Jung, Jinhong Min, Jinho Ahn, Yongseok Lee, Sang‐Yeop Lee, Dohyun Lee, Yun Seong Cho, Da‐Sol Kwon, Jung‐Keun Yoo, Joohoon Kang, Jongsoon Kim   +15 more
wiley   +1 more source

The Quantum Hall Effect under the Influence of Gravity and Inertia: A Unified Approach

Universe
The quantum Hall effect under the influence of gravity and inertia is studied in a unified way. We make use of an algebraic approach, as opposed to an analytic approach. We examine how both the integer and the fractional quantum Hall effects behave under
Alexandre Landry, Fayçal Hammad, Reza Saadati   +2 more
doaj   +1 more source

Comparative Study of Polymer and Semiconductor for Fractional Quantum Hall Effect [PDF]

Журнал нано- та електронної фізики, 2011
Over the last few years conductive polymers and semiconductor have become the most important material for the fabrication of electronic and optoelectronic devices.
Jyoti Sahu, G.K. Upadhyay
doaj  

Orbitally Controlled Quantum Hall States in Decoupled Two‐Bilayer Graphene Sheets

Advanced Science, 2023
The authors report on integer and fractional quantum Hall states in a stack of two twisted Bernal bilayer graphene sheets. By exploiting the momentum mismatch in reciprocal space, the single‐particle tunneling between both bilayers is suppressed.
Soyun Kim, Dohun Kim, Kenji Watanabe, Takashi Taniguchi, Jurgen H. Smet, Youngwook Kim   +5 more
doaj   +1 more source

Direct Evidence of Topological Dirac Fermions in a Low Carrier Density Correlated 5d Oxide

Advanced Functional Materials, EarlyView.
The 5d oxide BiRe2O6 is discovered as a low‐carrier‐density topological semimetal hosting symmetry‐protected Dirac fermions stabilized by nonsymmorphic symmetries. Angle‐resolved photoemission spectroscopy, quantum oscillations, and magnetotransport measurements reveal gapless Dirac cones, quasi‐2D Fermi surfaces, high carrier mobility, and a field ...
Premakumar Yanda, Jorge Cardenas‐Gamboa, Ding Pei, François Bertran, Leila Noohinejad, Snehashish Chatterjee, Changjiang Yi, Iñigo Robredo, Horst Borrmann, Maia G. Vergniory, Chandra Shekhar, Claudia Felser   +11 more
wiley   +1 more source

Quantum Hall effect systems of electrons with anisotropic patterns

AIP Advances, 2023
An almost ideal two-dimensional system of electrons can now be easily created in semiconductor heterojunctions. The quantum Hall effect state of the electrons is induced via the application of a strong perpendicular magnetic under specific quantum ...
Orion Ciftja
doaj   +1 more source

Birotons and “Dark” Quantum Hall Hierarchies

Applied Sciences, 2022
A computational scheme is suggested to estimate neutral excitation energies in the fractional quantum Hall effect (FQHE) states. The FQHE states are systematized according to the Farey-number hierarchy structure.
Oleg A. Grigorev, Liliya I. Musina, Alexander B. Van’kov, Oleg V. Volkov, Leonid V. Kulik   +4 more
doaj   +1 more source

Fractional Quantum Hall Effect in an Array of Quantum Wires [PDF]

Physical Review Letters, 2002
We demonstrate the emergence of the quantum Hall (QH) hierarchy in a 2D model of coupled quantum wires in a perpendicular magnetic field. At commensurate values of the magnetic field, the system can develop instabilities to appropriate inter-wire electron hopping processes that drive the system into a variety of QH states. Some of the QH states are not
Ranjan Mukhopadhyay, Tom C. Lubensky, Charles L. Kane   +2 more
openaire   +4 more sources