Results 61 to 70 of about 1,987,784 (294)
Advanced Functional Materials, EarlyView.Moiré band engineering in graphene/hexagonal boron nitride–based superlattices unlocks van Hove singularities (VHSs) for terahertz (THz) optoelectronics. Tuning the Fermi level near these singularities, associated with secondary neutrality points (SNPs), enhances the photothermoelectric response.
Leonid Elesin +16 more
wiley +1 more source
Massive particles tunneling from quantum Oppenheimer-Snyder black holes and black hole entropy
Physics Letters BIn this paper, we investigate the tunneling process of massive scalar particles from a quantum Oppenheimer-Snyder black hole using the tunneling approach proposed by Parikh and Wilczek.
Hongwei Tan, Kui Xiao
doaj +1 more source
Integration of resonant band with asymmetry in ferroelectric tunnel junctions
npj Computational Materials, 2022 We propose that the asymmetry-induced tunneling electroresistance (TER) effect in a ferroelectric tunnel junction (FTJ) could be improved by integrating a polarization-controlled resonant band. Using first-principles calculations and a quantum-mechanical
Jing Su +4 more
doaj +1 more source
Understanding Quantum Tunneling through Quantum Monte Carlo Simulations. [PDF]
Physical Review Letters, 2015 The tunneling between the two ground states of an Ising ferromagnet is a typical example of many-body tunneling processes between two local minima, as they occur during quantum annealing.
S. Isakov +6 more
semanticscholar +1 more source
Omnipolar Magnetic Field Detection by Superlattice‐Based Hall Sensor
Advanced Functional Materials, EarlyView.Magnetic‐field‐induced electronic switching is demonstrated in unit‐cell‐engineered La0.7Sr0.3MnO3–BiFeO3 superlattices. Distinct substrate terminations modify magnetic and transport properties. Hall resistance measurements show omnipolar, hysteretic anomalous Hall switching above the Curie temperature, arising from Fe─Mn interfacial exchange, enabling
Mark Huijben +6 more
wiley +1 more source
On Quantum Tunneling of a Singular Potential [PDF]
Journal of Contemporary Physics (Armenian Academy of Sciences), 2021 The quantum tunneling of a potential is considered with the preservation of the singular character of the corresponding Scrodinger equation. It is found that that the weakly singular and Coulomb potentials are partially penetrable but reveals non-standard behavior, in particular, accelerating complete oscillations with the approach to the zero ...
openaire +2 more sources
Advanced Functional Materials, EarlyView.Flexible piezoresistive pressure sensors underpin wearable and soft electronics. This review links sensing physics, including contact resistance modulation, quantum tunneling and percolation, to unified materials/structure design. We highlight composite and graded architectures, interfacial/porous engineering, and microstructured 3D conductive networks
Feng Luo +2 more
wiley +1 more source
Tunneling Probability of Quantum Wavepacket in Time-Dependent Potential Well
QuantaQuantum tunneling of particles plays an important role in many chemical reactions. Studying quantum tunneling in time-dependent potential wells is tricky since most of the available solutions of time-dependent potential wells are coupled to specific ...
Aarouj Ahmed
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Quantum Monte Carlo tunneling from quantum chemistry to quantum annealing [PDF]
, 2017 Quantum Tunneling is ubiquitous across different fields, from quantum chemical reactions, and magnetic materials to quantum simulators and quantum computers.
G. Mazzola, V. Smelyanskiy, M. Troyer
semanticscholar +1 more source
Orbital Geometry‐Governed Response of Pressure‐Tunable Quantum Defects in hBN
Advanced Functional Materials, EarlyView.Defects in hBN act as ultrasensitive quantum manometers when the energy of the intradefect optical transitions is modified by lattice compression. The orbital geometry of the electron wave functions governs how electron hopping and Coulomb interactions react uniquely to the reduction of the van der Waals gap and in‐plane compression, leading to robust ...
Magdalena Grzeszczyk +6 more
wiley +1 more source