Results 251 to 260 of about 2,748,623 (319)

Local density of states in double-barrier resonant-tunneling structures. II. Finite-width barriers

Physical Review B, 1989
The local density of states (DOS) in the quantum-well region of a double-barrier resonant-tunneling structure is calculated for the case of zero applied bias. As the barrier potential ${V}_{0}$ goes to zero, the local DOS approaches an ${E}^{1/2}$ behavior; as ${V}_{0}$ goes to infinity, a staircaselike local DOS is obtained.
, Bruno, , Bahder
openaire   +2 more sources

Decay widths for double-barrier resonant tunneling

Journal of Applied Physics, 1991
Calculations of the decay width and the partial decay widths for double-barrier resonant tunneling structures are discussed using a description of resonances in terms of the complex energy poles of the transmission amplitude of the system and comparing it with the corresponding Wentzel–Kramers–Brillouin approximations.
Gastón García-Calderón, Alberto Rubio, Roberto Romo   +2 more
openaire   +1 more source

Determination of depletion width of surface barrier detectors

Review of Scientific Instruments, 1990
A simple experimental method to determine the depletion width of a surface barrier detector is discussed. An electron spectrum of Bi207 taken with a detector having depletion width less than the range of the electrons shows an additional peak. The position of the extra peak enables us to determine the depletion width.
C. L. Davis, P. J. Ouseph, M. Ray O’Bryan   +2 more
openaire   +1 more source

β-Ga2O3 vertical heterojunction barrier Schottky diodes terminated with p-NiO field limiting rings

, 2021
In this Letter, high-performance β-Ga2O3 vertical heterojunction barrier Schottky (HJBS) diodes have been demonstrated together with the investigation of reverse leakage mechanisms.
H. Gong, X. X. Yu, Y. Xu, X. Chen, Y. Kuang, Y. Lv, Y. Yang, F. Ren, Z. Feng, S. Gu, Y. Zheng, R. Zhang, J. D. Ye   +12 more
semanticscholar   +1 more source

β-Ga2O3 hetero-junction barrier Schottky diode with reverse leakage current modulation and BV2/Ron,sp value of 0.93 GW/cm2

, 2021
In this paper, we show that high-performance β-Ga2O3 hetero-junction barrier Schottky (HJBS) diodes with various β-Ga2O3 periodic fin widths of 1.5/3/5 μm are demonstrated with the incorporation of p-type NiOx.
Qinglong Yan, H. Gong, Jincheng Zhang, Jiandong Ye, Hong Zhou, Zhihong Liu, Shengrui Xu, Chenlu Wang, Zhuangzhuang Hu, Q. Feng, Jing Ning, Chunfu Zhang, Peijun Ma, Rong Zhang, Y. Hao   +14 more
semanticscholar   +1 more source

Molecule‐Upgraded van der Waals Contacts for Schottky‐Barrier‐Free Electronics

Advances in Materials, 2021
The applications of any ultrathin semiconductor device are inseparable from high‐quality metal–semiconductor contacts with designed Schottky barriers. Building van der Waals (vdWs) contacts of 2D semiconductors represents an advanced strategy of lowering
Xiankun Zhang, Z. Kang, Li Gao, Baishan Liu, Huihui Yu, Qingliang Liao, Zheng Zhang, Yue Zhang   +7 more
semanticscholar   +1 more source

Overcoming the barrier to 1000A∕cm width superconducting coatings

Applied Physics Letters, 2005
Remarkable progress has been made in the development of YBa2Cu3O7−δ (YBCO)-based coated conductors, and the problems of continuous processing of commercially viable tape lengths are being rapidly solved by companies around the world. However, the current carried by these tapes is presently limited to about 100A for a 1-cm-wide tape, and this is due to ...
S. R. Foltyn, H. Wang, L. Civale, Q. X. Jia, P. N. Arendt, B. Maiorov, Y. Li, M. P. Maley, J. L. MacManus-Driscoll   +8 more
openaire   +1 more source

Barrier widths, barrier heights, and the origins of anomalous kinetic H/D isotope effects

Journal of the American Chemical Society, 1990
Proton transfer between MeO{sup {minus}} and HOMe has been studied using ab initio molecular orbital theory. At the highest level employed (MP2/6-31+G(d)//6-31G(d)+ZPE), {minus}{Delta}H{sup 298} and {minus}{Delta}G{sup 298} for the formation of the ion-molecule complex MeO{sup {minus}}{hor ellipsis}HOMe from the separated reactants are 26.3 and 15.2 ...
Saul Wolfe, Shmaryahu Hoz, Chan Kyung Kim, Kiyull Yang   +3 more
openaire   +1 more source

Critical Width of Barrier Islands and Implications for Engineering Design

Coastal Sediments '07, 2007
The critical width of a barrier island is defined as the smallest cross-shore dimension that minimizes net loss of sediment from the island over periods from decades to centuries. This concept is of importance for large-scale restoration of barrier islands which involves rebuilding these islands to a specified geometry.
Julie Dean Rosati, Gregory W. Stone
openaire   +1 more source

Study on evaluation indexes of the full width deformable barrier test

Advances in Engineering Technology Research, 2023
In order to evaluate the crash compatibility of vehicles, the full width deformable barrier is introduced into the vehicle crash test. Real car to car frontal collision is better simulated by installing deformable barrier on the load-cell wall . By the load-cell wall data, the values and distribution of vehicle frontal collision loads can be further ...
Jialin Yang, Bin Zhang
openaire   +1 more source