英国物理学会
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作者:Lei Wang , Philippe Corboz , Matthias Troyer
来源:[J].New Journal of Physics(IF 4.063), 2014, Vol.16 (10)IOP
摘要:Spinless fermions on a honeycomb lattice provide a minimal realization of lattice Dirac fermions. Repulsive interactions between nearest neighbors drive a quantum phase transition from a Dirac semimetal to a charge-density-wave state through a fermionic quantum critical point, wh...
作者:Lei Wang , Hong Xia ...
来源:[J].Science and Technology of Advanced Materials(IF 3.752), 2015, Vol.16 (2)IOP
摘要:We report controllable assembly of silver nanoparticles (Ag NPs) for patterning of silver microstructures. The assembly is induced by femtosecond laser direct writing (FsLDW). A tightly focused femtosecond laser beam is capable of trapping and driving Ag NPs to form desired ...
作者:Lei Wang , Xianping Liu
来源:[J].Measurement Science and Technology(IF 1.435), 2014, Vol.25 (6)IOP
摘要:This paper describes the experimental measurements of the elastic modulus and hardness of viscoelastic materials under quasi-static and dynamic depth-sensing indentation using a homemade tribology probe microscope (TPM). The indentation measurements were performed using a sapphir...
作者:Lei Wang , David Wright ...
来源:[J].Journal of Micromechanics and Microengineering(IF 1.79), 2014, Vol.24 (3)IOP
摘要:A novel mechanical model was proposed to calculate the contact resistance at tip and capping layer interface for scanning probe phase-change memory applications. The resulting I–V curve calculated from this model that combines Hertzian contact theory with the Schottky diode ...
作者:Lei Wang , Chao Geng ...
来源:[J].EPL (Europhysics Letters)(IF 2.26), 2014, Vol.108 (5)IOP
摘要:In this paper, the nonautonomous Lenells-Fokas (LF) model is investigated with the modified Darboux transformation. Such analytical solutions of the nonautonomous LF model as the breather and rogue wave are presented. It is found that the breather velocity is time dependent. The ...
作者:Lei Wang , Shijun Ge ...
来源:[J].Chinese Physics B(IF 1.148), 2016, Vol.25 (9)IOP
摘要:Metamaterial-based absorbers play a significant role in applications ranging from energy harvesting and thermal emitters to sensors and imaging devices. The middle dielectric layer of conventional metamaterial absorbers has always been solid. Researchers could not detect the near...
作者:Lei Wang , Meng Wang ...
来源:[J].Chinese Physics B(IF 1.148), 2016, Vol.25 (9)IOP
摘要:In this paper, we investigate the bichromatic coherent random lasing actions from the dye-doped polymer stabilized blue phase liquid crystals. Two groups of lasing peaks, of which the full widith at half maximum is about 0.3 nm, are clearly observed. The shorter- and longer-...
作者:Lei Wang , Jie-Hui Zheng ...
来源:[J].Chinese Physics B(IF 1.148), 2016, Vol.25 (11)IOP
摘要:The social force model has been widely used to simulate pedestrian evacuation by analyzing attractive, repulsive, driving, and fluctuating forces among pedestrians. Many researchers have improved its limitations in simulating behaviors of large-scale population. This study modifi...
作者:Lei Wang , Jiaqi Zhang ...
来源:[J].Chinese Physics B(IF 1.148), 2017, Vol.26 (3)IOP
摘要:In this study, a low-temperature annealed ohmic contact process was proposed on AlGaN/GaN heterostructure field effect transistors (HFETs) with the assistance of inductively coupled plasma (ICP) surface treatment. The effect of ICP treatment process on the 2DEG channel as we...
作者:Lei Wang , Gheorghe Dinescu ...
来源:[J].Plasma Sources Science and Technology(IF 2.515), 2017, Vol.26 (7)IOP
摘要:The time behavior of an atmospheric pressure planar discharge sustained in He gas was investigated experimentally and through two dimensional (2D) discharge simulation. The 30 mm long uniform α -mode discharge was observed at radio frequency (RF) input power below 35 W. The ...

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