Results 61 to 70 of about 1,855,980 (368)

Unique Performance Considerations for Printable Organic Semiconductor and Perovskite Radiation Detectors: Toward Consensus on Best Practice Evaluation

Advanced Functional Materials, EarlyView.
A lack of standard approaches for testing and reporting the performance of metal halide perovskites and organic semiconductor radiation detectors has resulted in inconsistent interpretation of performance parameters, impeding progress in the field. This Perspective recommends key metrics and experimental details, which are suggested for reporting in ...
Jessie A. Posar, Matthew Large, Andrea Ciavatti, Laura Basiricò, Beatrice Fraboni, Paul J. Sellin, Attila J. Mozer, Marco Petasecca, Matthew J. Griffith   +8 more
wiley   +1 more source

Tunnelling amplitudes through localised external potentials from Feynman diagram summation

European Physical Journal C: Particles and Fields
Currently there is no general theory of quantum tunnelling of a particle through a potential barrier which is compatible with QFT. We present a complete calculation of tunnelling amplitudes for a scalar field for some simple potentials using quantum ...
Rosemary Zielinski, Cédric Simenel, Patrick McGlynn   +2 more
doaj   +1 more source

Ultra-thin van der Waals crystals as semiconductor quantum wells

Nature Communications, 2020
A plethora of solid-state nanodevices rely on engineering the quantization of electrons in quantum wells. Here, the authors leverage the thickness of exfoliated 2D crystals to control the quantum well dimensions in few-layer semiconductor InSe and ...
Johanna Zultak, Samuel J. Magorrian, Maciej Koperski, Alistair Garner, Matthew J. Hamer, Endre Tóvári, Kostya S. Novoselov, Alexander A. Zhukov, Yichao Zou, Neil R. Wilson, Sarah J. Haigh, Andrey V. Kretinin, Vladimir I. Fal’ko, Roman Gorbachev   +13 more
doaj   +1 more source

Tunnelling Studies of Two-Dimensional States in Semiconductors with Inverted Band Structure: Spin-orbit Splitting, Resonant Broadening

, 1996
The results of tunnelling studies of the energy spectrum of two-dimensional (2D) states in a surface quantum well in a semiconductor with inverted band structure are presented.
A. V. Germanenko, A. V. Germanenko, B. Freytag, C. A. Hoffman, D. C. Tsui, D. C. Tsui, E. Böckenhoff, F. J. Ohkawa, G. C. La Rocca, G. L. Bir, G. M. Minkov, G. M. Minkov, G. M. Minkov, G. M. Minkov, I. Nachev, J. Müller, J. R. Meyer, J. Slinkman, L. G. Gerchikov, L. P. Zverev, L. P. Zverev, M. I. Dyakonov, M. V. Kisin, O. E. Rut, P. Bauernschmitt, Pawel Sobkowicz, R. A. Suris, R. Sizmann, R. Stepniewski, R. Winkler, R. Wollrab, V. A. Larionova, V. F. Radantsev, V. F. Radantsev, V. F. Radantsev, Y. A. Bychkov, Y. R. Lin-Liu   +36 more
core   +1 more source

A mechanical model of tunnelling [PDF]

, 2008
It is shown how the model which was introduced by Mouchet (2008 Eur. J. Phys.
Mouchet, Amaury
core   +4 more sources

Direct Approach to Quantum Tunneling

Physical Review Letters, 2016
5 pages, 2 ...
Andreassen, Anders, Farhi, David, Frost, William, Schwartz, Matthew D.   +3 more
openaire   +4 more sources

Realistic Observable in Background-Free Quantum Gravity: the Planck-Star Tunnelling-Time [PDF]

, 2016
A gravitationally collapsed object can bounce out from its horizon via a tunnelling process that violates the classical equations in a finite region.
Marios Christodoulou, C. Rovelli, Simone Speziale, Ilya Vilensky   +3 more
semanticscholar   +2 more sources

Ferrocene Derivatives Enable Ultrasensitive Perovskite Photodetectors with Enhanced Reverse Bias Stability

Advanced Functional Materials, EarlyView.
Novel ferrocene derivatives (e.g., FcPhc2) are used as an ultrathin layer hole‐blocking layer, reducing hole injection from the Ag contact. This results in an ultralow noise spectral density of 1.2 × 10−14 A Hz−1/2, and a high specific detectivity of 8.1 × 1012 Jones at −0.5 V.
Eunyoung Hong, William D. J. Tremlett, Lucy Hart, Beier Hu, Zhuoran Qiao, Patipan Sukpoonprom, Sarah Fearn, Edoardo Angela, Matilde Brunetta, Demosthenes C. Koutsogeorgis, Nikolaos Kalfagiannis, Davide Nodari, Martyn A. McLachlan, Piers R. F. Barnes, Artem A. Bakulin, Nicholas J. Long, Nicola Gasparini   +16 more
wiley   +1 more source

Suppression of Quantum Phase Interference in Molecular Magnets Fe₈ with Dipolar-Dipolar Interaction [PDF]

, 2002
Renormalized tunnel splitting with a finite distribution in the biaxial spin model for molecular magnets is obtained by taking into account the dipolar interaction of enviromental spins.
A. Cuccoli, A. Garg, B. Barbara, D.A. Garanin, E. Rastelli, E.M. Chudnovsky, J. Liu, J.-Q. Liang, J.Q. Liang, M. Ueda, M.N. Leuenberger, N.V. Prokof’ev, N.V. Prokof’ev, N.V. Prokof’ev, N.V. Prokof’ev, R.G. Palmer, S. Miyashita, Shun-Qing Shen, T. Ohm, T. Ohm, W. Wernsdorfer, W. Wernsdorfer, W. Wernsdorfer, Y.H. Jin, Z.D. Chen, Zhi-De Chen   +25 more
core   +2 more sources

Synchrotron Radiation for Quantum Technology

Advanced Functional Materials, EarlyView.
Materials and interfaces underpin quantum technologies, with synchrotron and FEL methods key to understanding and optimizing them. Advances span superconducting and semiconducting qubits, 2D materials, and topological systems, where strain, defects, and interfaces govern performance.
Oliver Rader, Sakura Pascarelli, Klaus Attenkofer, Anna A. Makarova, Karsten Holldack, Kai Rossnagel, Kristiaan Temst, George Kourousias, Stefano Carretta, Caterina Biscari, Helmut Dosch   +10 more
wiley   +1 more source