Zobrazeno 1 - 10
of 54
pro vyhledávání: '"D. M. Riffe"'
Publikováno v:
All Physics Faculty Publications
We use simple symmetry arguments suitable for undergraduate students to demonstrate that the magnetic energy, forces, and torques between two uniformly magnetized spheres are identical to those between two point magnetic dipoles. These arguments expl
We derive expressions for the dynamical matrix of a crystalline solid with total potential energy described by an embedded-atom-method (EAM) potential. We make no assumptions regarding the number of atoms per unit cell. These equations can be used fo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::205d49a03c8cf27e916c4d21e048332d
http://arxiv.org/abs/1806.04244
http://arxiv.org/abs/1806.04244
Publikováno v:
Surface Science. 603:1070-1078
We have measured W 4f7/2 core-level photoemission spectra from W(110) in the presence of Pd overlayers for coverages up to 1 pseudomorphic monolayer (ML). At coverages close to 0.05 ML a striking change in the W core-level spectrum is observed, which
Autor:
D. M. Riffe, G. K. Wertheim
Publikováno v:
Physical Review B. 61:2302-2309
High-resolution core-level photoemission data from the 1s level of Li(110) have been obtained between 77 and 280 K. Analysis of the data reveals a significant difference in the zero-temperature phonon broadening between the bulk and surface atoms but
Autor:
A. J. Sabbah, D. M. Riffe
Publikováno v:
Review of Scientific Instruments. 69:3099-3102
An interferometric rapid-scanning autocorrelator employing two antiparallel rotating mirrors in a variable arm is optimized for maximum optical path difference as a function of the separation of the two rotating mirrors. A very compact design (mirror
Autor:
G.K. Wertheim, D. M. Riffe
Publikováno v:
Surface Science. 399:248-263
We have measured high-resolution 4f72 core-level photoemission spectra from W(110) in the presence of submonolayer O coverages. Coverages ≤0.5 monolayer (ML) were obtained via room-temperature adsorption of O2. Higher coverages (
Publikováno v:
All Physics Faculty Publications
Using 800 nm, 25-fs pulses from a mode locked Ti:Al2O3 laser, we have measured the ultrafast optical reflectivity of MBE-grown, single-layer In0.4Ga0.6As/GaAs quantum-dot (QD) samples. The QDs are formed via two-stage Stranski-Krastanov growth: follo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::69dab76b5c7c5a5d883e51a7401fad93
https://digitalcommons.usu.edu/physics_facpub/2021
https://digitalcommons.usu.edu/physics_facpub/2021
Autor:
D. M. Riffe, G. K. Wertheim
Publikováno v:
Solid State Communications. 96:645-648
Above the threshold for K 3p excitation, the conduction band photoemission spectrum of metallic potassium is dominated by core excitation coupled to autoionization. This accounts for the observation of a strong response in regions where k-conserving
Publikováno v:
All Physics Faculty Publications
The phonon widths of outermost core-electron photoemission spectra from (110)-oriented overlayers of Na, K, and Rb metals show the expected Debye behavior for the bulk atoms, but significant deviations for the surface atoms. The data indicate a softe
Autor:
A. J. Sievers, D. M. Riffe
Publikováno v:
Surface Science. 297:1-10
The internal stretch of on-top-bonded CO on W(100) is monitored as a function of exposure at 90 and 295 K. At both temperatures significant population of this state (α-CO) occurs after the local adsorption of another coexisting state. The inhomogene