The Intrinsic Barrier Width and Its Role in Chemical Reactivity [PDF]
ACS Central Science, 2023 Chemical reactions are in virtually all cases understood and explained on the basis of depicting the molecular potential energy landscape, i.e., the change in atomic positions vs the free-energy change.
Guanqi Qiu, Peter R. Schreiner
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Influence of Barrier Width on QWIP Operating Voltage
Известия высших учебных заведений России: РадиоэлектроникаIntroduction. Quantum well infrared photodetectors (QWIP) are characterized by a wide application range. A large market demand for such photodetectors determines the importance of elucidating the principle of their operation.Aim.
L. S. Bogoslovskaya +2 more
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Controlling Drain Side Tunneling Barrier Width in Electrically Doped PNPN Tunnel FET [PDF]
Micromachines, 2023 In this paper, we propose and investigate an electrically doped (ED) PNPN tunnel field effect transistor (FET), in which the drain side tunneling barrier width is effectively controlled to obtain a suppressed ambipolar current.
Chan Shan +4 more
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Superluminal tunneling of a relativistic half-integer spin particle through a potential barrier
Open Physics, 2017 This paper investigates the problem of a relativistic Dirac half-integer spin free particle tunneling through a rectangular quantum-mechanical barrier.
Nanni Luca
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Extremely elevated room-temperature kinetic isotope effects quantify the critical role of barrier width in enzymatic C-H activation. [PDF]
J Am Chem Soc, 2014 The enzyme soybean lipoxygenase (SLO) has served as a prototype for hydrogen-tunneling reactions, as a result of its unusual kinetic isotope effects (KIEs) and their temperature dependencies.
Hu S +7 more
europepmc +2 more sources
Shannon entropy of asymmetric rectangular multiple well with unequal width barrier
Results in Physics, 2022 We present the Shannon entropy of the Schrödinger equation with an asymmetric rectangular multiple well, in which the potential well width is equal but the barrier width is in an arithmetic sequence.
R. Santana Carrillo +4 more
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Control mechanism of the surrounding rock structure of multisection stopes in steeply dipping coal seams under overburden transient changes excitation [PDF]
Scientific ReportsThe mining cycle of multi-section stopes in steeply dipping coal seams is protracted, and the ground pressure appearance is complex.This study utilized physical simulation and theoretical analysis to investigate the surrounding rock structural evolution ...
Yongping Wu +6 more
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Research on the stability of stope roof and barrier pillars in short-wall interval filling mining [PDF]
Scientific ReportsTo address the challenge of instability control in the collaborative bearing structure of stope roof and barrier pillars in short-wall interval filling mining, a combined approach of theoretical analysis, numerical simulation, and field application was ...
Chengshuai Wang +5 more
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Electronic Transport Properties in a One-Dimensional Sequence of Laser-Dressed Modified Pöschl-Teller Potentials [PDF]
NanomaterialsModifying the potential profiles in low-dimensional semiconductor heterostructures changes the confinement of particles, impacting the electronic transport properties. In this work, we study the electronic transport properties of a modified Pöschl-Teller
Carlos A. Dagua-Conda +4 more
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Effects of extraction barrier width on performance of terahertz quantum-cascade lasers
Electronics Letters, 2008 Experimental results are presented on the effects of extraction barrier on the performance of resonant phonon terahertz quantum-cascade lasers. The extraction barrier is varied from 48 to 39 A in an otherwise identical 3.4 THz laser structure. It is found that, when the extraction barrier width decreases from 48 to 39 A, the threshold current density ...
H. Luo +4 more
semanticscholar +2 more sources