supported by the National Key Research and Development Program of China(Grant Nos.2022YFA1405100 and 2022YFE0134600);the Beijing Natural Science Foundation Key Program(Grant No.Z190007);the National Natural Science Foundation of China(Grant Nos.61774144,62005265,and 52272152);the Key Research Program of Frontier Sciences(Grant No.QYZDY-SSW-JSC020);the Strategic Priority Research Program of Chinese Academy of Sciences(Grant Nos.XDB44000000 and XDB28000000)。
A magnetic tunnel junction(MTJ)is the core component in memory technologies,such as the magnetic random-access memory,magnetic sensors and programmable logic devices.In particular,MTJs based on twodimensional van der ...
Supported by the National Natural Science Foundation of China(Grant Nos.61704083 and 61874060);the Natural Science Foundation of Jiangsu Province(Grant No.BK20181388);NUPTSF(Grant No.NY219030)。
Tunnel oxide passivated contact solar cells have evolved into one of the most promising silicon solar cell concepts of the past decade,achieving a record efficiency of 25%.We study the transport mechanisms of realisti...
Supported by the National Key Research and Development Program of China(Grant Nos.2018YFB0406603 and 2018YFA0703704);the National Natural Science Foundation of China(Grant Nos.51991341,61904052,61851403 and 61704051);the Key Research and Development Plan of Hunan Province(Grant No.2018GK2064);the Strategic Priority Research Program of Chinese Academy of Sciences(Grant No.XDB30000000).
Van der Waals heterostructures(vdWHs)realized by vertically stacking of different two-dimensional(2D)materials are a promising candidate for tunneling devices because of their atomically clean and lattice mismatch-fre...
Supported by the National Natural Science Foundation of China under Grant Nos.51605009 and 51975011。
To measure the parameters of fiber and to visualize the reshaping process of fiber in air tunnel,an experimental approach is developed in the present work.The tunnel is designed with gradient flow velocity,and the fib...
Supported by the Seed Funding Program for Basic Research from the University of Hong Kong;KHC acknowledges the support through the UMRG(RP006B-13AFR).
We investigate the dynamic characteristics of electric polarization P(t)in a ferroelectric junction under ac applied voltage and stress,and calculate the frequency response and the cut-off frequency f0,which provides ...
Supported by the Fundamental Research Funds for the Central Universities under Grant No 10611201312015.
We report the demonstration of an n-channel lateral Si tunnel field-effect transistor(TFET)with a single crystalline Ge source fabricated using the gate-last process.The p Ge source was in situ doped and grown at 320...
We theoretically investigate the effects of quantum size and doping concentration on the current-voltage characteristics of GaN resonant tunneling diodes.The results show a marked dependence of the peak current densit...
by the National Natural Science Foundation of China under Grant Nos 2007CB310404 and 2011CBA00107;the National Natural Science Foundation of China under Grant No 10874074;the Doctoral Funds of the Ministry of Education of China under Grant No 20090091110039。
For high-quality superconducting tunnel junctions(STJs),it is necessary to reduce leakage current as much as possible.We describe the fabrication of niobium STJs using the selective niobium(Nb)etching process and vari...
Supported by the National Natural Science Foundation of China under Grant Nos 60736036, 60706009, 60777021 and 60702006, the National Basic Research Program of China under Grant Nos 2006CB604901 and 2006CB604902, and the National High-Tech Research and Development Program of China under Grant No 2007AA03Z419, 2007AA03Z417 and 2009AA03Z442.
We fabricate 1.5 μm InGaAsP/InP tunnel injection multiple?quantum-well (TI-MQW) Fabry-Perot (F-P) ridge lasers. The laser heterostructures, including an inner cladding layer and an InP tunnel barrier layer, are ...
Supported by the National Natural Science Foundation of China under Grant No 10672147, and the Natural Science Foundation of Zhejiang Province under Grant No Y605312.
A model of the perturbed complex Toda chain (PCTC) to describe the dynamics of a Bose-Einstein condensate (BEC) N-soliton train trapped in an applied combined external potential consisting of both a weak harmonic ...