Results 81 to 90 of about 1,855,980 (368)
Advanced Functional Materials, EarlyView.Electric control of magnetic tunnel junctions offers a path to drastically reduce the energy requirements of the device. Electric field control of magnetization can be realized in a multitude of ways. These mechanisms can be integrated into existing spintronic devices to further reduce the operational energy.
Will Echtenkamp +7 more
wiley +1 more source
Quantum biological tunnel junction for electron transfer imaging in live cells
Nature Communications, 2019 Although quantum biological electron transfer is important in many biological processes, imaging of the events in live cells has remained challenging.
Hongbao Xin +5 more
doaj +1 more source
Nature Communications, 2021 The metal-insulator transition is typically controlled by carrier accumulation or chemical doping. Here, the authors realize an alternative method based on resonant tunnelling in a double quantum well structure of strongly correlated oxides, which offers
R. Yukawa +10 more
doaj +1 more source
Complex lapse, complex action and path integrals [PDF]
, 1995 Imaginary time is often used in quantum tunnelling calculations. This article advocates a conceptually sounder alternative: complex lapse. In the ``3+1'' action for the Einstein gravitational field minimally coupled to a Klein-Gordon field, allowing the ...
A. Carlini +19 more
core +2 more sources
Creation of wormholes by quantum tunnelling in modified gravity theories [PDF]
, 2014 We study the process of quantum tunnelling in scalar-tensor theories in which the scalar field is non-minimally coupled to gravity. In these theories gravitational instantons can deviate substantially from sphericity and can in fact develop a neck - a ...
Lorenzo Battarra +2 more
semanticscholar +1 more source
Distribution of tunnelling times for quantum electron transport. [PDF]
Journal of Chemical Physics, 2016 In electron transport, the tunnelling time is the time taken for an electron to tunnel out of a system after it has tunnelled in. We define the tunnelling time distribution for quantum processes in a dissipative environment and develop a practical ...
Samuel L. Rudge, D. Kosov
semanticscholar +1 more source
Advanced Functional Materials, EarlyView.This study demonstrated single‐crystalline PbTiO3‐based memristors with atomically sharp interfaces, well‐ordered lattices, and minimal lattice mismatch. The devices exhibited an ON/OFF ratio exceeding 105, high stability, and rich resistance‐state modulation.
Haining Li +7 more
wiley +1 more source
Clean‐Limit 2D Superconductivity in a Thick Exfoliated Kagome Film
Advanced Functional Materials, EarlyView.This study reports clean‐limit 2D superconductivity in a thick kagome system, analogous to the 3D case. It observes a drop in superfluid stiffness near the superconducting transition and a cusp‐like feature in the angular dependence of the upper critical field.
Fei Sun +3 more
wiley +1 more source
Quantum gravity effect on the Hawking radiation of charged rotating BTZ black hole
, 2018 In this study, the quantum gravity effect on the tunnelling radiation of charged massive spin-0 scalar particle from 2+1 dimensional charged rotating Banados-Teitelboim-Zanelli (BTZ) black hole is looked into by using the Hamilton-Jacobi approach.
Gecim, Ganim, Sucu, Yusuf
core +1 more source
Light-emitting current of electrically driven single-photon sources [PDF]
, 2006 The time-dependent tunnelling current arising from the electron-hole recombination of exciton state is theoretically studied using the nonequilibrium Green's function technique and the Anderson model with two energy levels.
David M.-T. Kuo, H. Haug, H. Haug
core +1 more source