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Displaying 5201 - 5225 of 73741

Characterization of New 5M and 7M Polytypes of Niobia-Doped Ca 2 Ta 2 O 7

October 12, 2021
Author(s)
I E. Grey, Robert S. Roth, W G. Mumme, J Planes, Leonid A. Bendersky, C Li, J Chenavas
Two new calcium tantalate polytypes have been prepared in the system Ca2Ta2O7-Ca2Nb2O7. Their structures have been determined and refined using single crystal X-ray diffraction data and powder neutron diffraction data, and their dielectric properties have

Chemical Analysis of HfO 2 / Si (100) Film Systems Exposed to NH 3 Thermal Processing

October 12, 2021
Author(s)
Patrick S. Lysaght, Joseph Woicik, Daniel A. Fischer, Gennadi Bersuker, Joel Barnett, Brendan Foran, Hsing-Huang Tseng, Raj Jammy
Nitrogen incorporation in HfO2/SiO2 films utilized as high-k gate dielectric layers in advanced metal-oxide field-effect transistors (MOSFETs) has been investigated. Thin HfO2 blanket films deposited by atomic layer deposition on either SiO2 or NH3 treated

Chemically Amplified Photoresists Fundamental Properties and Limits of Applicability to Sub-100 nm Lithography

October 12, 2021
Author(s)
D M. Goldfarb, Eric K. Lin, Christopher Soles, B C. Trinque, S D. Burns, Ronald L. Jones, Joseph~undefined~undefined~undefined~undefined~undefined Lenhart, M Angelopoulos, C G. Wilson, Sushil K. Satija, Wen-Li Wu
State-of-the-art lithographic technologies combine chemically amplified photoresists and sophisticated radiation sources to delineate patterned areas with high spatial resolution, enabling the fabrication of continually decreasing feature sizes in the

Clinical Implications and Utility of Field Cancerization

October 12, 2021
Author(s)
Gabriel D. Dakubo, J P. Jakupciak, Rajiv Dhir, M A. Birch-Machin, Ryan L. Parr
Cancer begins with multiple cumulative epigenetic and genetic alterations that sequencially transform a cell or a group of cells in a particular organ. The early genetic events might lead to clonal expansion of preneoplastic daughter cells in a particular

CO(v) Produced From CH 3 or CD 3 + O

October 12, 2021
Author(s)
T P. Marcy, R R. Diaz, Dwayne E. Heard, S R. Leone, L B. Harding, S J. Klippenstein
Combined experimental and theoretical investigations of the title reactions are presented. Time-resolved Fourier transform infrared (FTIR) emission studies of CO(v=1) produced from the CH 3 + O and CD 3 + O reactions show that there is approximately a one

Coating Kinetics of Fluoropolymer Process Aids for Sharkskin Elimination: The Role of Domain Size

October 12, 2021
Author(s)
D Bigio, Mathurin G. Meillon, S B. Kharchenko, David C. Morgan, Hui Zhou, S Oriani, C Macosko, Kalman D. Migler
We study the ability of fluoropolymer based polymer processing aids (PPA) to eliminate surface melt fracture (sharkskin) during extrusion of polyethylene in relation to blend morphology (PPA droplet size) and processing conditions (shear rate). Under the

Coherent Raman Spectra of the v 1 Mode of 10 BF 3 and 11 BF 3

October 12, 2021
Author(s)
Robynne Kirkpatrick, Tony Masiello, Alfons Weber, J Nibler
High resolution (0.001cm-1) coherent anti-Stokes Raman spectroscopy (CARS) was used to directly examine the n1 symmetric stretching mode of the planar symmetric D3h molecules 10BF3 and 11BF3. Simulations of the spectra were done using n1 rovibrational

Colloquium: Femtosecond Optical Frequency Combs

October 12, 2021
Author(s)
S T. Cundiff, Jun Ye
Recently there has been a remarkable synergy between the technology of precision laser stabilization and modelocked ultrafast lasers. This has resulted in control of the frequency spectrum produced by modelocked lasers, which consists of a regular comb of

Combined Effect of Coherent Z Exchange and the Hyperfine Interaction in Atomic PNC

October 12, 2021
Author(s)
W R. Johnson, M S. Safronova, U I. Safronova
The nuclear spin-dependent parity nonconserving (PNC) interaction arising from a combination of the hyperfine interaction and the coherent, spin-independent, PNC interaction from Z exchange is evaluated using many-body perturbation theory. For the 6s^1/2^

Comment on Phys. Rev. Lett. 95, 017201 (2005)

October 12, 2021
Author(s)
J A. Bland, S J. Steinmuller, T Trypiniotis, William F. Egelhoff Jr.
In their article High Temperature Ferromagnetism in GaAs-Based Heterostructures with Mn ? Doping , the authors A. M. Nazmul et al. report finding remarkably high Curie temperatures in Mn delta doped GaAs structures. They base their assessment on the

Comment on Stability of Small Carbon-Nitride Heterofullerenes

October 12, 2021
Author(s)
G Sun, Rui-Hua Xie, M C. Niklaus
In a recent Letter [1], Schultz et, al, proposed the existence of heterofullerenes C n-xN x (40 less then or equal to} n less then or equal to} 50) based on the pattern of the peaks in the mass spectrum of carbon-nitride nanostructures produced by the arc

Comparative Dielectric Behavior of PBFe 1/2 Ta 1/2 O 3 and NaNbO 3 :Gd Relaxor-Like Crystals

October 12, 2021
Author(s)
I P. Raevski, S A. Prosandeev, U Waghmare, V V. Eremkin, V G. Smotrakov, V A. Shuvaeva
Experimental data obtained for PBFe 1/2Ta 1/20 3 (PFT) and NaNbO 3:Gd (NaNbGd) single crystals show a diffused dielectric permittivity peak that is inherent to relaxor ferroelectrics. However some deviations from the normal relaxor properties were also

Composition-based Reduction of Damping in Fe1-xVx (50nm) Thin Films

October 12, 2021
Author(s)
L Cheng, H Song, J O. Rantschler, Robert McMichael, William E. Bailey
The reduction of GHz damping a is a critical and unaddressed need in ferromagnetic materials development. Smith has predicted that the signal-to-noise ratios of nanoscale / Ghz spin electronic sensors will be inversely dependent on the free magnetic layer

Computations of Particle Surface Characteristics Using Optical and X-Ray CT Images

October 12, 2021
Author(s)
E Masad, S Saadeh, T Al-Rousan, Edward Garboczi, D Little
The description of particle surface characteristics is of interest in many disciplines in science and engineering such as powder technology, geology, soil science, and infrastructure materials. Consequently, there is a need to develop methods to quantify
Displaying 5201 - 5225 of 73741
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