Electric-field control of the band gap and Fermi energy in graphene
... Since the fabrication of single and multilayers of graphene,1 the investigation of its exotic electronic, optical, and transport properties became an intriguing area in contemporary physics. Ultrathin graphite films are very promising for, e.g., nanoelectronics2 and as transparent conducting layers3 ...
... Since the fabrication of single and multilayers of graphene,1 the investigation of its exotic electronic, optical, and transport properties became an intriguing area in contemporary physics. Ultrathin graphite films are very promising for, e.g., nanoelectronics2 and as transparent conducting layers3 ...
Experimental Studies of the Fractional Quantum Hall Effect and the
... Professor Adilet Imambekov for their reading of the thesis and comments. Highest-purity two-dimensional electron GaAs/AlGaAs quantum wells (QW) were grown by molecular beam epitaxy by the group of Dr. Loren Pfeiffer and Ken West at Alcatel-Lucent, Bell Laboratories (now at Princeton University). The ...
... Professor Adilet Imambekov for their reading of the thesis and comments. Highest-purity two-dimensional electron GaAs/AlGaAs quantum wells (QW) were grown by molecular beam epitaxy by the group of Dr. Loren Pfeiffer and Ken West at Alcatel-Lucent, Bell Laboratories (now at Princeton University). The ...
Morin, A.J., II, M. Zahn, and J.R. Melcher, Fluid Electrification Measurements of Transformer Pressboard/Oil Insulation in a Couette Charger, IEEE Transactions on Electrical Insulation, Vol. 26, No. 2, pp. 870-901, October 1991
... of petroleum liquids in pipes, through filters, and in charge accumulation in storage tanks [l-111. With changes in the chemical make-up of insulating liquids used to transfer heat and withstand high electric stress, the use of new dielectric materials such as polymers and cellulosic materials, and ...
... of petroleum liquids in pipes, through filters, and in charge accumulation in storage tanks [l-111. With changes in the chemical make-up of insulating liquids used to transfer heat and withstand high electric stress, the use of new dielectric materials such as polymers and cellulosic materials, and ...
Hikita, M., M. Zahn, K.A. Wright, C.M. Cooke, and J. Brennan, Kerr Electro-Optic Field Mapping Measurements in Electron Beam Irradiated Polymethylmethacrylate, IEEE Transactions on Electric Insulation, Vol. 23, No. 5, 861-880, October 1988
... in electron beam irradiated polymethylmethacrylate. The accumulated trapped charge results in large self-electric fields of the order of 1 to 3.5 MV/cm. The resulting numerous light maxima and minima were recorded on film and videotape and analyzed using a computerized image digitization system t o ...
... in electron beam irradiated polymethylmethacrylate. The accumulated trapped charge results in large self-electric fields of the order of 1 to 3.5 MV/cm. The resulting numerous light maxima and minima were recorded on film and videotape and analyzed using a computerized image digitization system t o ...
PUBLISHED VERSION Two-fluid simulations of driven reconnection
... NZ vary depending on the magnitude of the dissipation coefficients used and are stated explicitly for each simulation. For simulations with the lowest dissipation scales, we perform grid convergence tests by coarsening NR and NZ by a factor of 2. All of the simulations described in this paper use th ...
... NZ vary depending on the magnitude of the dissipation coefficients used and are stated explicitly for each simulation. For simulations with the lowest dissipation scales, we perform grid convergence tests by coarsening NR and NZ by a factor of 2. All of the simulations described in this paper use th ...
The Plasmasphere Boundary Layer
... plasmapause density structure itself. For example, Moldwin et al. (2002) found that only 16% of the CRRES satellite plasmapause crossings were “classic” isolated steep density gradients, and that a significant density structure was observed outside the innermost steep density gradient on 40% of the ...
... plasmapause density structure itself. For example, Moldwin et al. (2002) found that only 16% of the CRRES satellite plasmapause crossings were “classic” isolated steep density gradients, and that a significant density structure was observed outside the innermost steep density gradient on 40% of the ...
Density - Conductivity Measurements in Green
... powder mixtures. In all cases a clear correlation between conductivity and density could be established, indicating that measurements of electric conductivity could indeed be exploited in an effort to render valid information about the density of a green-state P/M compact. However, while the correla ...
... powder mixtures. In all cases a clear correlation between conductivity and density could be established, indicating that measurements of electric conductivity could indeed be exploited in an effort to render valid information about the density of a green-state P/M compact. However, while the correla ...
Homework Section 1
... 8) Use cylindrical coordinates to calculate the electric field on the z-axis for a surface of charges on the x-y plane where the charge density is s 0 9) Use cylindrical coordinates to calculate the electric field on the z-axis for a surface of charges on the x-y plane where the charge density ...
... 8) Use cylindrical coordinates to calculate the electric field on the z-axis for a surface of charges on the x-y plane where the charge density is s 0 9) Use cylindrical coordinates to calculate the electric field on the z-axis for a surface of charges on the x-y plane where the charge density ...
OpenFOAM Simulation for Electromagnetic Problems
... where H is the magnetic field intensity, J is the current density, D is the electric flux density, B is the magnetic flux density, t is the time, E is the electric field intensity, and ρ is the electric charge density. There is interdependency between all variables in the equations and, therefore, a ...
... where H is the magnetic field intensity, J is the current density, D is the electric flux density, B is the magnetic flux density, t is the time, E is the electric field intensity, and ρ is the electric charge density. There is interdependency between all variables in the equations and, therefore, a ...
Experiment - Version III
... In this version of the experiment, the velocity of a droplet is measured in a constant electrical field as its charge is changed. Your instructor will choose a standard voltage; it will be between 100 volts and 400 volts. The voltage will need to be changed temporarily to drag a droplet up and down ...
... In this version of the experiment, the velocity of a droplet is measured in a constant electrical field as its charge is changed. Your instructor will choose a standard voltage; it will be between 100 volts and 400 volts. The voltage will need to be changed temporarily to drag a droplet up and down ...
Remarks on the Donnan condenser in the sedimentation–diffusion
... should yield zφ as a function of height and particle concentration. Thus in principle one can directly measure Donnan potentials making use of gravity, provided that the valence z of the colloids is known. The electrical field E corresponding to a particular value of y is found as follows. The magni ...
... should yield zφ as a function of height and particle concentration. Thus in principle one can directly measure Donnan potentials making use of gravity, provided that the valence z of the colloids is known. The electrical field E corresponding to a particular value of y is found as follows. The magni ...
The ideal dimensions of a Halbach cylinder of finite length
... compute. Therefore the simulations have been calculated on a number of powerful computers, each running multiple simulations at once. For all configurations the mean flux density in the sample volume, denoted hBi, was calculated. The flux density in the center of the bore can be calculated analytica ...
... compute. Therefore the simulations have been calculated on a number of powerful computers, each running multiple simulations at once. For all configurations the mean flux density in the sample volume, denoted hBi, was calculated. The flux density in the center of the bore can be calculated analytica ...
Current Gain Improvement at High Collector Current
... densities [2]. This rapid fall in the current gain leads to the fall in transistor efficiency and make it impractical for use at high collector current densities. The degraded current gain at high collector current densities in DHBT structures is attributed to the formation of retarding potential ba ...
... densities [2]. This rapid fall in the current gain leads to the fall in transistor efficiency and make it impractical for use at high collector current densities. The degraded current gain at high collector current densities in DHBT structures is attributed to the formation of retarding potential ba ...
Reduction of Sheath Potential and Dust Ion
... the potential formation in the near-target region. The local charge of the dust particles is calculated according to the absorption cross-section from OML theory [5]. We found that the uniformly distributed immovable dust particles in front of the target plate reduce the potential drop in the sheath ...
... the potential formation in the near-target region. The local charge of the dust particles is calculated according to the absorption cross-section from OML theory [5]. We found that the uniformly distributed immovable dust particles in front of the target plate reduce the potential drop in the sheath ...
Visible Continuum Measurements on the C PFC/RR-87-2
... simple analytic approximations have also been obtained". The analytical expressions for §f, which are used in this thesis, (valid at these low ...
... simple analytic approximations have also been obtained". The analytical expressions for §f, which are used in this thesis, (valid at these low ...
Scaling of High-Field Transport and Localized Heating in Graphene Transistors
... where Rseries = 600 Ω is the total series resistance of the Pd metal wires contacting our device (Pd resistivity independently measured, FPd ≈ 14 μΩ cm). For simplicity, in this study we assume a constant mobility that is equal for electrons and holes, although there are indications that the mobilit ...
... where Rseries = 600 Ω is the total series resistance of the Pd metal wires contacting our device (Pd resistivity independently measured, FPd ≈ 14 μΩ cm). For simplicity, in this study we assume a constant mobility that is equal for electrons and holes, although there are indications that the mobilit ...
study of fluid dynamics with emphasis on couette flow
... College for providing me the required infrastructure facilities. I thank the Center for Non-Linear Dynamics, Texas, for sending me the reprints of some research papers on Taylor vortices. I thank our elderly lab assistant Haribhau for his numerous suggestions while making the apparatus. I thank my f ...
... College for providing me the required infrastructure facilities. I thank the Center for Non-Linear Dynamics, Texas, for sending me the reprints of some research papers on Taylor vortices. I thank our elderly lab assistant Haribhau for his numerous suggestions while making the apparatus. I thank my f ...
Quantum Hall ferromagnet at high filling factors: A magnetic
... To simplify, we have defined the zero of energy such that EF = 0. It is possible to obtain a simple expression if we as- ...
... To simplify, we have defined the zero of energy such that EF = 0. It is possible to obtain a simple expression if we as- ...
PowerPoint - Subir Sachdev
... and the vortex does not pick up any phase from the boson density. • The effective dual “magnetic” field acting on the vortex is zero, and the corresponding component of the Magnus force vanishes. ...
... and the vortex does not pick up any phase from the boson density. • The effective dual “magnetic” field acting on the vortex is zero, and the corresponding component of the Magnus force vanishes. ...
On the nonlinear stress-strain behavior of nematic elastomers
... We present a nonlinear macroscopic model in which nematic side-chain liquid single crystal elastomers are understood as materials that show two preferred directions. One of the two directions is connected to the director of the liquid crystalline phase, the other one becomes anchored in the polymer ...
... We present a nonlinear macroscopic model in which nematic side-chain liquid single crystal elastomers are understood as materials that show two preferred directions. One of the two directions is connected to the director of the liquid crystalline phase, the other one becomes anchored in the polymer ...
Propagation of Spin-Polarized Electrons Through Interfaces
... velocity of the spin polarization profile is much lower, at least by the factor N1/N2, than at earlier times, when the spin polarization density was concentrated mainly in the first semiconductor or in the interface region. Thus, the peaked spin polarization profile at τ=0.11 can be regarded as quas ...
... velocity of the spin polarization profile is much lower, at least by the factor N1/N2, than at earlier times, when the spin polarization density was concentrated mainly in the first semiconductor or in the interface region. Thus, the peaked spin polarization profile at τ=0.11 can be regarded as quas ...
A Quantum Similarity Study of Atomic Density Functions: Insights
... such as the use of different separation operators [2], the replacement of the density by more appropriate, reactivity oriented functions [3, 4], within the context of conceptual DFT [5] and the peculiarities arising in the comparison of enantiomers [6, 7]. Most remarkably the field of similarity of ...
... such as the use of different separation operators [2], the replacement of the density by more appropriate, reactivity oriented functions [3, 4], within the context of conceptual DFT [5] and the peculiarities arising in the comparison of enantiomers [6, 7]. Most remarkably the field of similarity of ...
View/Open - Костанайский Государственный Педагогический
... with its history. In fact, the history of this science begins with Galileo, but in order to understand his work one should see what was thought before his time. The scholastics, whose ideas were in the main derived from Aristotle, thought that there were different laws for celestial and terrestrial ...
... with its history. In fact, the history of this science begins with Galileo, but in order to understand his work one should see what was thought before his time. The scholastics, whose ideas were in the main derived from Aristotle, thought that there were different laws for celestial and terrestrial ...
PDF (MSc Thesis) - DORAS
... distinct, yet equivalent, forms: (a) the differential, conservation form; (b) the differential, non-conservation form; (c) the integral, conservation form; and (d) the integral, non-conservation form (the terms “conservation” and “nonconservation” used here have a different meaning than is usual in ...
... distinct, yet equivalent, forms: (a) the differential, conservation form; (b) the differential, non-conservation form; (c) the integral, conservation form; and (d) the integral, non-conservation form (the terms “conservation” and “nonconservation” used here have a different meaning than is usual in ...
Scanning Quantum Cryogenic Atom Microscope
... of the gas, this noise is a factor of approximately 2 below that expected for shot noise in the higher-density regions of the BEC; hence, the use of “quantum” in the name of the scanning microscope. (See Appendix C for Allan deviation and noise measurements.) The noise floor is measured also by Alla ...
... of the gas, this noise is a factor of approximately 2 below that expected for shot noise in the higher-density regions of the BEC; hence, the use of “quantum” in the name of the scanning microscope. (See Appendix C for Allan deviation and noise measurements.) The noise floor is measured also by Alla ...