搜索结果: 1-14 共查到“知识库 物理学 Dc”相关记录14条 . 查询时间(0.094 秒)
Dynamics of charged-particle between the DC voltage biased plane-parallel conductors
lane-parallel conductors charged-particle
2011/9/7
Analytic description to an oscillating charged-particle between the DC voltage biased plane-parallel conductors is presented. Contrary to the traditional belief in which the oscillation of charged-par...
Model building in AdS/CMT: DC Conductivity and Hall angle
Model building in AdS/CMT DC Conductivity Hall angle
2010/12/23
Using the bottom-up approach in a holographic setting, we attempt to study both the transport and thermodynamic properties of a generic system in $3+1$ dimensional bulk spacetime. We show the exact $...
Fabrication and characterization of a Ni-Mn-Ga uniaxially textured freestanding film deposited by DC magnetron sputtering
DC magnetron sputtering freestanding Ni-Mn-Ga thick film martensitic transformation
2010/11/22
Homogeneous freestanding films have been obtained by the direct current (DC) magnetron sputtering technique using a sacrificial layer. After annealing, the films are crystallized with a strong out-of-...
Hysteresis and intermittency in a nano-bridge based suspended DC-SQUID
Hysteresis intermittency nano-bridge based suspended DC-SQUID
2010/11/11
We study voltage response of nano-bridge based DC-SQUID fabricated on a Si\_{3}N\_{4} membrane. Such a configuration may help in reducing 1/f noise, which originates from substrate fluctuating defects...
DC-switchable and single-nanocrystal-addressable coherent population transfer
DC-switchable single-nanocrystal-addressable coherent population transfer
2010/10/21
Achieving coherent population transfer in the solid-state is challenging compared to atomic systems due to closely spaced electronic states and fast decoherence. Here, within an atomistic pseudopotent...
DC-SC超导光阴极微波电子枪是一种新型的高平均流强电子源,本文介绍了其中的关键部件—光阴极的研制.在自行研制的光阴极制备室里成功制备了两种光阴极:Cs2Te和Cs3Sb光阴极.Cs225%,真空中(1×10－5Pa)寿命50h.Cs3Sb光阴极是多层膜结构,用532nm激光激发,量子效率2%,真空中(10－5Pa)寿命只有几个小时.两者都可以满足电子枪的设计要求,但是由于Cs2Te光阴极更稳定,...
用于高平均功率自由电子激光器的DC–RF超导腔注入器
注入器 超导腔 高平均功率自由电子激光 皮尔斯引出结构
2009/5/22
北京大学超导加速器实验室提出了新型DC?RF超导腔注入器的设计方案.该注入器由皮尔斯引出结构、1+1/2超导腔组成,可以提供高品质的、CW模式或高占空比(1%以上)的电子束.对该注入器进行了分析计算和设计研究,通过改变超导腔首腔腔形以增加聚焦效果,采取措施缩短阴极到超导腔的距离,从而有效地抑制束流发射度的增长.用PARMELA对该注入器进行束流动力学研究,以确定皮尔斯引出结构的形状以及超导腔的同步...
dc Josephson Effect in s-Wave Superconductor/Ferromagnet
Insulator/p-Wave Superconductor Junctions
ferromagnet insulator p-wave superconductor dc Josephson current
2007/8/15
2007Vol.47No.4pp.737-740DOI:
dc Josephson Effect in s-Wave Superconductor/Ferromagnet
Insulator/p-Wave Superconductor Junctions
LI Xiao-Wei
Department of Physics and Ele...
Current Oscillation and dc-Voltage-Controlled Chaotic Dynamics in
Semiconductor Superlattices
semiconductor superlattices current oscillation chaotic dynamics
2007/8/15
2006Vol.45No.2pp.363-368DOI:
Current Oscillation and dc-Voltage-Controlled Chaotic Dynamics in
Semiconductor Superlattices
WANG Chang and LÜ Jing-Tao
State Key Labo...
Analysis Theory of Asymmetric dc SQUID Driven by Thermal
Noises
noise Fokker-Planck equation superconducting quantum
interference device
2007/8/15
2004Vol.41No.5pp.707-714DOI:
Analysis Theory of Asymmetric dc SQUID Driven by Thermal
Noises
LÜ Hai-Feng, JIA Ya, and HUANG Xin-Tang
Department of Physics, Central ...
DC Electric Field Effects on the Electron Dynamics in Double Rectangular Quantum Dots
Coupled quantum dots DC bias Coherence Relaxation
2010/9/25
The effect of a dc electric field on the temporal evolution of an electron in a double rectangular quantum dot is explored in this work. In the framework of the effective mass approximation, first-ord...
The Effect of Preparation conditions on the Growth Rate of Films, the Yield of Precipitated Powder and the DC Conductivity of Polypyrrole
DC Conductivity Conducting Polymers Polypyrrole Quartz Crystal Microbalance Technique
2010/4/12
Polypyrrole (PPy) was prepared by a chemical method by using oxidizing agents ferric chloride and potassium persulphate, both as films and pellets. The effect of various variables-such as aging of the...
Nitriding of AISI 304 Stainless Steel by PIII in DC and RF Toroidal Discharges
AISI 304 Stainless Steel PIII DC and RF Toroidal Discharges
2010/10/27
Plasma immersion ion implantation (PIII) of stainless steels with nitrogen has been successfully used for surface hardening purposes. This process has been carried out inside a toroidal discharge cham...