Supported by the National Natural Science Foundation of China(Grant Nos.61975230,61635011,61804177 and 11804382);the National Key Research and Development Program of China(Grant No.2018YFB2200104);Beijing Municipal Science and Technology Commission(Grant No.Z191100004819010);the Key Research Program of Frontier Sciences,CAS(Grant No.QYZDB-SSW-JSC009)。
GaAs/Ge heterostructures have been employed in various semiconductor devices such as solar cells,high-performance CMOS transistors,andⅢ-Ⅴ/Ⅳheterogeneous optoelectronic devices.The performance of these devices is di...
An adaptive control scheme is developed to study the synchronization and the anti-synchronization behaviors between two identical Lorenz–Stenflo systems with unknown parameters.This adaptive controller is designed ba...
by the National Natural Science Foundation of China under Grant Nos 11023003,60890193 and 60990313;the Specialized Research Fund for the Doctoral Program of Higher Education in China.
We investigate epitaxy of AlN layers on sapphire substrates by molecular beam epitaxy.It is found that an atomically flat surface can be obtained under Al-rich conditions at growth temperature of 780°C.However,the gr...
Supported by the Knowledge Innovation Project of Chinese Academy of Sciences (No KGCX2-SW-107-1), the National Natural Science Foundation of China under Grant No 60606002, the State Key Basic Research Programme of China under Grant Nos 2002CB311903, 2006CB604905, and 513270505.
A new A1GaN/A1N/GaN high electron mobility transistor (HEMT) structure using a compositionally step-graded A1GaN barrier layer is grown on sapphire by metalorganic chemical vapour deposition (MOCVD). The structure...
Supported by the National Center for R&D on Superconductivity and the Ministry of Science and Technology of China(NKBRSF-G19990646).
A way to determine some important etching parameters in the step fabrication for highTc step-edge Josephson junctions is described based on an analysis of the dynamics of the etching process.The optimum thickness of t...
Project supported by the National Natural Science Foundation of China.
The observation of growth steps on Pt(110)was carried out by means of reflection electron microscopy.The huge terraces on Pt(110)have a zigzag shape,showing that the risers of those steps are composed of(111)and(111)f...