Phasing
Physics articles and information
-
Effect of rolling friction on binary collisions of spheres
Posted on March 20th, 2010 No commentsAndres D. Orlando and Hayley H. Shen<br/> Foerster et al. [Phys. Fluids 6, 1108 (1994)] proposed a binary collision model for spheres and a way to measure the constant impact parameters in the model. These three parameters were necessary to describe the translational momentum exchange during a collision. An extensive data set for a variety … [Phys. Fluids 22, 033304 (2010)] published Fri Mar 19, 2010.
-
A generalized bosonic oscillator in the presence of a minimal length
Posted on March 20th, 2010 No commentsM. Falek and M. Merad<br/> We present an exact solution of the three-dimensional DuffinKemmerPetiau oscillator for spins 1 and 0 in the momentum space with the presence of minimal length uncertainty by the technique of vector spherical harmonics. The eigenfunctions are determined for both cases and the energy eigenvalues equa … [J. Math. Phys. 51, 033516 (2010)] published Fri Mar 19, 2010.
-
Structural approach to unambiguous discrimination of two mixed quantum states
Posted on March 20th, 2010 No commentsM. Kleinmann, H. Kampermann, and D. Bruss<br/> We analyze the optimal unambiguous discrimination of two arbitrary mixed quantum states. We show that the optimal measurement is unique and we present this optimal measurement for the case where the rank of the density operator of one of the states is at most 2 (solution in four dimensions). The sol … [J. Math. Phys. 51, 032201 (2010)] published Fri Mar 19, 2010.
-
W-doped anatase TiO transparent conductive oxide films: Theory and experiment
Posted on March 20th, 2010 No commentsDe-ming Chen, Gang Xu, Lei Miao, Li-hua Chen, Setsuo Nakao et al.<br/> W-doped anatase TiO films were deposited on glass substrate by magnetron cosputtering. The minimum resistivity, 1.5 x 10 Omega cm, for TiWO film (x=0.063) was obtained. X-ray photoelectron spectroscopy analysis shows W incorporated in the Ti lattice position is mostly in the W state. Theoretical ca … [J. Appl. Phys. 107, 063707 (2010)] published Fri Mar 19, 2010.
-
Evolution of barrier-resistance noise in CoFeB/MgO/CoFeB tunnel junctions during annealing
Posted on March 20th, 2010 No commentsRyan Stearrett, W. G. Wang, L. R. Shah, Aisha Gokce, J. Q. Xiao et al.<br/> The low-frequency resistance noise in sputtered-deposited magnetic tunnel junctions with MgO barriers has been measured as a function of annealing time at different annealing temperatures. The noise has a 1/f spectrum and it is quantified by a Hooge-like parameter alpha given in units of [mu]m. Unan … [J. Appl. Phys. 107, 064502 (2010)] published Fri Mar 19, 2010.
-
Signal-to-noise ratios in high-signal-transfer-rate read heads composed of spin-torque oscillators
Posted on March 20th, 2010 No commentsK. Mizushima, K. Kudo, T. Nagasawa, and R. Sato<br/> An application of spin-torque oscillators (STOs) to high-signal-transfer-rate read heads beyond 3 Gbits/s is considered and the signal-to-noise ratios (SNRs) of the output signals under the thermal magnetization fluctuations are calculated by using the results of recent nonlinear theories. The STO h … [J. Appl. Phys. 107, 063904 (2010)] published Fri Mar 19, 2010.
-
Preparation and characterization of p-type semiconducting tin oxide thin film gas sensors
Posted on March 20th, 2010 No commentsXiaodi Liu, Dacheng Zhang, Yang Zhang, and Xiaotao Dai<br/> P-type conducting undoped tin oxide thin film gas sensor is fabricated by direct current reactive magnetron sputtering method and calcination technique. Physical characteristics of the undoped tin oxide thin films have been analyzed by Spectroscopic ellipsometer, x-ray diffraction (XRD), scanning el … [J. Appl. Phys. 107, 064309 (2010)] published Fri Mar 19, 2010.
-
Near-infrared quantum cutting via cooperative energy transfer in GdO:Bi,Yb phosphors
Posted on March 20th, 2010 No commentsX. Y. Huang and Q. Y. Zhang<br/> An efficient near-infrared (NIR) quantum-cutting (QC) by converting broadband ultraviolet (UV) into NIR via cooperative down-conversion (CD) has been demonstrated in GdO:Bi,Yb phosphors. Upon excitation of UV photon varying from 320390 nm, NIR emissions has been obtained from transitions of the tran … [J. Appl. Phys. 107, 063505 (2010)] published Fri Mar 19, 2010.
-
Abnormal current increases induced under high electric fields in asymmetrical graphite-intrinsic-diamond-graphite structures fabricated with high-quality homoepitaxial chemical-vapor-deposited diamond layers
Posted on March 20th, 2010 No commentsMitsuhiro Hamada, Tokuyuki Teraji, and Toshimichi Ito<br/> In order to investigate an abnormal current amplification phenomenon appearing in high-quality chemical-vapor-deposited (CVD) diamond under high electric fields, we have measured current-voltage and electroluminescence (EL) characteristics of an asymmetric graphite-intrinsic-diamond-graphite (G-ID-G … [J. Appl. Phys. 107, 063708 (2010)] published Fri Mar 19, 2010.
-
Monoatomic layer removal mechanism in chemical mechanical polishing process: A molecular dynamics study
Posted on March 20th, 2010 No commentsLina Si, Dan Guo, Jianbin Luo, and Xinchun Lu<br/> Molecular dynamics simulations of nanoscratching processes were used to study the atomic-scale removal mechanism of single crystalline silicon in chemical mechanical polishing (CMP) process and particular attention was paid to the effect of scratching depth. The simulation results under a scratching … [J. Appl. Phys. 107, 064310 (2010)] published Fri Mar 19, 2010.