Results 41 to 50 of about 104,391 (313)

A High-Performance InGaAs Vertical Electron–Hole Bilayer Tunnel Field Effect Transistor with P⁺-Pocket and InAlAs-Block

Micromachines, 2023
To give consideration to both chip density and device performance, an In0.53Ga0.47As vertical electron–hole bilayer tunnel field effect transistor (EHBTFET) with a P+-pocket and an In0.52Al0.48As-block (VPB-EHBTFET) is introduced and systematically ...
Hu Liu, Peifeng Li, Xiaoyu Zhou, Pengyu Wang, Yubin Li, Lei Pan, Wenting Zhang, Yao Li   +7 more
doaj   +1 more source

Resonant and non-resonant Tunneling through a double barrier

, 2004
An explicit expression is obtained for the phase-time corresponding to tunneling of a (non-relativistic) particle through two rectangular barriers, both in the case of resonant and in the case of non-resonant tunneling.
A. K Zaichenko, Bracher C., E Recami, Nimtz G., Nimtz G., Olkhovsky V. S., Olkhovsky V. S., V. S Olkhovsky   +7 more
core   +2 more sources

Temperature Dependent Polarity Reversal in Au/Nb:SrTiO3 Schottky Junctions

, 2007
We have observed temperature-dependent reversal of the rectifying polarity in Au/Nb:SrTiO3 Schottky junctions. By simulating current-voltage characteristics we have found that the permittivity of SrTiO3 near the interface exhibits temperature dependence ...
E. Sawaguchi, H. Y. Hwang, S. M. Sze, T. Susaki, Y. Kozuka, Y. Tateyama   +5 more
core   +1 more source

Dislocation Kinks in Copper: Widths, Barriers, Effective Masses, and Quantum Tunneling

, 2000
We calculate the widths, migration barriers, effective masses, and quantum tunneling rates of kinks and jogs in extended screw dislocations in copper, using an effective medium theory interatomic potential. The energy barriers and effective masses for moving a unit jog one lattice constant are close to typical atomic energies and masses: tunneling will
Vegge, Tejs, Sethna, James P., Cheong, Siew-Ann, Jacobsen, Karsten W., Myers, Christopher R., Ralph, Daniel C.   +5 more
openaire   +2 more sources

Discrepancies between asymptotic and exact spectral-gap analyses of quantum adiabatic barrier tunneling [PDF]

, 2016
We study the asymptotic behavior of the spectral gap of simple barrier tunneling problems, which are related to using quantum annealing to find the global optimum of cost functions defined over n bits.
L. Brady, W. V. Dam
semanticscholar   +1 more source

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

Effect of Γ – X band crossover on resonant tunneling properties of electrons in double-barrier triangular heterostructures

Results in Surfaces and Interfaces
The transfer matrix method is employed to study the electron tunneling in GaAs/GaAlAs triangular double-barrier heterostructure. The barrier width enhances the tunneling lifetime of electrons. Without Γ – X crossover in the conduction band, the resonance
L. Bruno Chandrasekar, Lalitha Gnanasekaran, Madhappan Santhamoorthy, E. Priyadharshini, M. Karunakaran, Manikandan Ayyar, P. Shunmuga Sundaram   +6 more
doaj   +1 more source

Soliton tunneling with sub-barrier kinetic energies

, 1999
We investigate (theoretically and numerically) the dynamics of a soliton moving in an asymmetrical potential well with a finite barrier. For large values of the width of the well, the width of the barrier and/or the height of the barrier, the soliton ...
A. Bellorín, A. J. Heeger, A. R. Bishop, A. S. Davidov, B. A. Mello, D. K. Campbell, D. W. McLaughlin, G. Kälbermann, G. Kälbermann, G. S. Adkins, H. Akoh, J. A. González, J. A. González, J. A. González, J. A. González, J. A. González, J. A. González, L. E. Guerrero, M. A. Rice, M. A. Rice, P. Hänggi, S. A. Gredeskul, T. H. R. Skyrme, Y. S. Kivshar, Y. S. Kivshar, Y. S. Kivshar   +25 more
core   +1 more source

Quantum shutter approach to tunneling time scales with wave packets [PDF]

, 2004
The quantum shutter approach to tunneling time scales (G. Garc\'{\i }a-Calder\'{o}n and A. Rubio, Phys. Rev. A \textbf{55}, 3361 (1997)), which uses a cutoff plane wave as the initial condition, is extended in such a way that a certain type of wave ...
B. D. Fried, E. C. Tichmarsh, Gastón García-Calderón, Jorge Villavicencio, L. Brillouin, L. Cohen, N. Yamada, Norifumi Yamada, V. N. Faddeyeva   +8 more
core   +1 more source

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