Open Access. Powered by Scholars. Published by Universities.®
Physical Sciences and Mathematics Commons™
Open Access. Powered by Scholars. Published by Universities.®
- Discipline
Articles 1 - 9 of 9
Full-Text Articles in Physical Sciences and Mathematics
Impurity Photomagnetoelectric Effect: Application To Semi-Insulating Gaas, David C. Look
Impurity Photomagnetoelectric Effect: Application To Semi-Insulating Gaas, David C. Look
Physics Faculty Publications
The theories of the photomagnetoelectric (PME) and photoconductivity (PC) effects in semiconductors are extended to include unequal excitation rates of holes and electrons, as might be expected from impurity photo-excitation. The results are applied to two semi-insulating Cr-doped GaAs crystals, which exhibit mixed conductivity. It is seen that the PC and PME effects give complementary information on the holes and electrons. In the impurity excitation region the PME current responds strongly to changes in the absorption coefficient, and provides a convenient way to study this quantity.
The Electrical Characterization Of Semi‐Insulating Gaas: A Correlation With Mass‐Spectrographic Analysis, David C. Look
The Electrical Characterization Of Semi‐Insulating Gaas: A Correlation With Mass‐Spectrographic Analysis, David C. Look
Physics Faculty Publications
The room‐temperature electrical properties of 28 semi‐insulating GaAs crystals have been determined by using a mixed‐conductivity analysis. It is shown that for most of these samples, such an analysis gives good accuracy for the electron mobility μn and electron concentration n, but poorer accuracy for the hole mobility μp, hole concentration p, and intrinsic concentration ni. The intrinsic concentration is determined at 296 °K to be ni ≈ (1.7±0.4) ×106 cm−3, which compares favorably with the theoretical value deduced from the band gap and the effective masses. From a …
Astronomy And The Bible: Joshua's Long Day, Joel W. Block
Astronomy And The Bible: Joshua's Long Day, Joel W. Block
Physics Faculty Publications
The Bible has served as a multipurpose text for thousands of years. However, the Bible has been ignored in the area of astronomy. Several teaching points can be demonstrated using the Bible stories and modern astronomical principles.
Fermi-Surface Topology Of 2h-Tase2 At 4.2k, Paul D. Hambourger
Fermi-Surface Topology Of 2h-Tase2 At 4.2k, Paul D. Hambourger
Physics Faculty Publications
The magnetoresistance of single-crystal 2H-TaSe2 in the commensurate charge-density-wave state has been measured at 4.2 K in magnetic fields up to 48 kG. The results indicate that the Fermi surface supports open orbits parallel to the [0001] direction for all orientations of magnetic field in the (0001) plane. No evidence of open orbits in other directions was observed.
The Nitrogen Dayglow On Mars, Jane L. Fox, Alexander Dalgarno, E. R. Constantinides, G. A. Victor
The Nitrogen Dayglow On Mars, Jane L. Fox, Alexander Dalgarno, E. R. Constantinides, G. A. Victor
Physics Faculty Publications
The ultraviolet dayglow spectrum arising from emission of N2 in the Mars atmosphere is predicted. The intensities are such that a high-resolution spectrum should readily reveal the presence of N2 at the abundances suggested by the Viking experiments.
A Geomagnetic Survey Of Greene County, Ohio, V. E. D. Obot, Paul J. Wolfe
A Geomagnetic Survey Of Greene County, Ohio, V. E. D. Obot, Paul J. Wolfe
Physics Faculty Publications
No abstract provided.
Positron Annihilation In Copper, K. White, W. H. Rickles, Thomas Listerman
Positron Annihilation In Copper, K. White, W. H. Rickles, Thomas Listerman
Physics Faculty Publications
No abstract provided.
Radiative Transition Probabilities Of The 1S2P22P And 1S2P22D States Of The Lithium Isoelectronic Sequence, Jane L. Fox, Alexander Dalgarno
Radiative Transition Probabilities Of The 1S2P22P And 1S2P22D States Of The Lithium Isoelectronic Sequence, Jane L. Fox, Alexander Dalgarno
Physics Faculty Publications
A Z-expansion procedure is used to obtain eigenvalues and eigenfunctions for the 1s22p2Po, 1s2p22P, and 1s2p22D states of the lithium sequence. Expansions in inverse powers of the nuclear charge Z are obtained also for the dipole-matrix elements and oscillator strengths of the 1s22p2Po-1s2p22P and 1s22p2Po-1s2p22D transitions, valid for Z > 3. …
Search For Volume Anomaly In Paramagnetic Zrzn2, Paul D. Hambourger
Search For Volume Anomaly In Paramagnetic Zrzn2, Paul D. Hambourger
Physics Faculty Publications
No abstract provided.