Supported by the National Natural Science Foundation of China under Grant Nos 10375039 and 90503008, the Doctoral Fund of Ministry of Education of China, and the Center of Theoretical Nuclear Physics of HIRFL of China.
We investigate an anisotropic Heisenberg spin cluster with five particles controlled by a time-dependent magnetic field. With the algebraic dynamical method, we obtain the exact analytical solution to the time depende...
Due to coupling effect, we show that it is difficult to realize the left-handed material by placing metallic wires directly into a ferrite matrix. However by introducing an insulating material round the metallic wires...
Cu2O thin films with (111) preferred orientation have been grown on glass and Cu substrates by rapid thermal oxidation of Cu at 500℃ for 45s. The optical band gap energy was determined by spectral data of transmitt...
Supported in part by the National Natural Science Foundation of China under Grant No.69625609,Pandeng plan(Y-41);Shanghai Science and Technology Commission.
We demonstrate theoretically that two-dimensional photonic bandgap materials are indeed perfect polarizers provided that they have a proper photonic band structure along the incident direction of light.This kind of po...
Flexible blue light emitting diodes(LEDs)were fabricated by using poly(N-vinylcarbazole)(PVK)doped with high fluorescence dye,1,1,4,4-tetraphen1-1,3-butadiene(TPB),as a emitter layer,a layer of tris(8-quinolino1ato)al...
Double-microbridge de superconducting quantum interference devices(SQUIDs)have been fabricated from the postannealed Y_(1)Ba_(2)Cu_(3)O_(y) and Tl_(2)-Ba_(2)Ca_(2)Cu_(3)O_(y) thin films by chemical etching and ion mil...