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Displaying 7401 - 7425 of 143737

Ionization of W and W+ by Electron Impact

October 12, 2021
Author(s)
D H. Kwon, Y J. Rhee, Yong Sik Kim
Theoretical cross sections for electron-impact ionization of the neutral W atom and W$^+$ ion are reported. The direct ionization cross sections were calculated by using the binary-encounter Bethe (BEB) model and the indirect ionization cross sections

Issues and Applications in Ultra-Sensitive Molecular Spectroscopy

October 12, 2021
Author(s)
C Ishibashi, Jun Ye, John L. Hall
We present a systematic analysis of ultra-sensitive molecular detection methods based on an optical cavity and frequency modulationspectroscopy. Our goal is towards the improvement of the limiting attainable performance by the choice of optical

Jamming in Carbon Nanotube Suspensions

October 12, 2021
Author(s)
D J. Fry, Haonan Wang, Erik K. Hobbie
The 'phase diagram' of a non-Brownian carbon nanotube suspension is measured as a function of concentration, shear stress, and geometrical confinement. We observe a hierarchy of flow-induced structure, including dispersed 'nematics', isolated, periodic and

Kinetic Theory of a Spin-1/2 Bose-Condensed Gas

October 12, 2021
Author(s)
T Nikuni, J E. Williams
We derive a kinetic theory for a spin-1/2 Bose-condensed gas of two-level atoms at finite temperatures. The condensate dynamics is described by a generalized Gross-Pitaevskii equaiton for the two-component spinor order parameter, which includes the

Laboratory and Field Test Results for an Ultrasonic Applied Stress Measurement Instument

October 12, 2021
Author(s)
P A. Fuchs, A V. Clark, M G. Lozev, U Halabe, P Klinkhachorn, S Petro, H GangaRao
The measurement of applied stress on bridges can provide valuble information on the condition of the structure. The conventional technique for applied stress measurement is with a strain gage. However, strain gages can be time consuming to install because

Large Negative Poisson's Ratio for SrTiO3 Thin Films Grown on Si(001

October 12, 2021
Author(s)
F S. Aguirre-Tostado, A Herrera-Gomez, Joseph Woicik, R Droopad, Z Yu, D G. Schlom, E Karapetrova, P Pianetta, C S. Hellberg
The driving force of the semiconductor industry to integrate thin transition-metal oxides with Si transistor technology has led to the development of SrTiO3 thin-film growth on Si(001). As SrTiO3 represents a large class of oxides with the perovskite

Laser Based Angle-Resolved Photoemission, the Sudden Approximation and Quasiparticle-Like Spectral Peaks in Bi 2 Sr 2 Cu 2 O 8 +D

October 12, 2021
Author(s)
j D. Koralek, Jack F. Douglas, N C. Plumb, Z Sun, A V. Fedorov, M M. Murnane, H C. Kapteyn, Steven T. Cundiff, Y Aiura, K Oka, H. Eisaki, D S. Dessau
A new low photon energy regime of angle-resolved photoemission spectroscopy is accessed with lasers and used to study the hight T c superconductor Bid2^CaCu 2O 8d+^delta. The low energy increases bulk sensitivity, reduces background, and improves
Displaying 7401 - 7425 of 143737
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