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TL;DR: In this article, high resolution UV photoemission spectra of CO physisorbed on copper at 20 K have been obtained for the first time and the spectra exhibit systematic shifts and broadening of the 5σ, 1π and 4σ levels compared to the gas phase.
109 citations
TL;DR: The dynamic spin susceptibility, chi(")(omega), has been measured over the energy range of 2
Abstract: The dynamic spin susceptibility, chi(")(omega), has been measured over the energy range of 2
108 citations
TL;DR: It is shown that the magnetic interactions in LuFe(2)O(4) are three-dimensional in character, and the magnetic structure is refined as a ferrimagnetic spin configuration below the 240 K transition.
Abstract: We present single crystal neutron diffraction measurements on multiferroic LuFe{sub 2}O{sub 4}. Magnetic reflections are observed below transitions at 240 and 175 K indicating that the magnetic interactions in LuFe{sub 2}O{sub 4} are three-dimensional in character. The magnetic structure is refined as a ferrimagnetic spin configuration below the 240 K transition. Below 175 K a significant broadening of the magnetic peaks is observed along with the buildup of a diffuse component to the magnetic scattering.
107 citations
TL;DR: In this paper, the channeling characteristics of protons and helium ions in various diamond-type lattices (diamond, Si, Ge, GaP, GaAs, and GaSb) have been studied by means of Rutherford backscattering in the 0.5-2-MeV range.
Abstract: The channeling characteristics of protons and helium ions in various diamond-type lattices (diamond, Si, Ge, GaP, GaAs, and GaSb) have been studied by means of Rutherford backscattering in the 0.5-2-MeV range. Critical angles (${\ensuremath{\psi}}_{\frac{1}{2}}$) and minimum yields (${\ensuremath{\chi}}_{min}$) have been measured and compared to theory. The values of ${\ensuremath{\psi}}_{\frac{1}{2}}$ for axial channeling have a functional dependence which agrees well with calculations based on the average potential along the row---both for uniform and for nonuniform spacing and (in the case of the compound semiconductors) for mixed atomic composition. However, the measured values are \ensuremath{\approx} 25% lower in absolute magnitude. Planar critical angles show a faster attenuation with decreasing planar spacing than predicted, but in other aspects agree with theory. In the compound semiconductors, the orientation dependence of backscattering and of x-ray yields has been used to investigate simultaneously the interaction of the beam with both atomic species in the lattice. For those directions along which the different atomic species lie on separate rows (e.g., $〈110〉$), each row steers the incident particles in a manner described by the average potential of that row.
106 citations
TL;DR: A highly systematic, non-cloning method of distinguishing and isolating every fragment in a class-IIS or interrupted palindrome restriction digest has been developed in the laboratory and potential applications are indicated in DNA sequence tagged site and restriction mapping, sequencing, restriction-fragment-length polymorphism analysis and DNA diagnostics.
105 citations
Authors
Showing all 2298 results
| Name | H-index | Papers | Citations |
|---|---|---|---|
| Michael D. Guiver | 78 | 288 | 20540 |
| Robert J. Birgeneau | 78 | 587 | 22686 |
| Mike D. Flannigan | 71 | 211 | 21327 |
| Martin T. Dove | 61 | 396 | 14767 |
| Luis Rodrigo | 58 | 341 | 12963 |
| André Longtin | 56 | 260 | 16372 |
| David Mitlin | 56 | 196 | 15479 |
| John Katsaras | 55 | 220 | 9263 |
| John E. Greedan | 55 | 391 | 12171 |
| Gang Li | 48 | 406 | 7713 |
| Matthew G. Tucker | 45 | 224 | 7288 |
| Bruce D. Gaulin | 45 | 284 | 6698 |
| Erick J. Dufourc | 43 | 144 | 5882 |
| Norbert Kučerka | 43 | 119 | 7319 |
| Stephen J. Skinner | 42 | 194 | 8522 |