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Creator | Title | Description | Subject | Date |
1 |
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Symko, Orest George | Effect of RKKY interactions on the magnetization of dilute magnetic alloys with hcp hosts | The magnetization due to the presence of magnetic impurities dissolved dilutely in nonmagnetic H.C.P. host metals has been calculated assuming a fine structure splitting by an axially symmetric crystal field and an RKKY interaction between the impurities. To compute the RKKY contribution, the inte... | RKKY interactions; Dilute magnetic alloys; HCP hosts; MgMn; ZnMn | 1981 |
2 |
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Ailion, David Charles | Evidence for elastic disorder in the elastically ordered phase of KCN | We have obtained evidence from 1 3C NMR measurements that the CN~ ion in the elastically ordered phase of KCN is misoriented slightly with respect to the orthorhombic b axis. This misorientation varies randomly over the lattice, averaging to zero on a macroscopic scale. The misorientations are mani... | Potassium cyanide; Anisotropy; Orthorhombic crystal; NMR; Nuclear magnetic resonance | 1981 |
3 |
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Ailion, David Charles | Nature of Ag+ self-diffusion in AgF | Measurements of the nuclear magnetic resonance (NMR) dipolar relaxation times T w and T i (51°) have been made on the 1 9 F resonance in AgF powder over the temperature range 60-300 K. Also the technique of Stokes and Ailion for detecting the diffusion of weakly magnetic spins has been verified f... | NMR; Nuclear magnetic resonance; Diffusion; Ionic conductivity | 1981 |
4 |
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Vardeny, Zeev Valentine | Optical picosecond studies of carrier thermalization in amorphous silicon | Thermalization of photogenerated hot carriers in a-Si, a-Si:H and a-Si:H:F was studied using the pump and probe method with subpicosecond resolution. The process is optically observable because the absorption cross-section of the hot carriers depends on their excess energy. It was found that the en... | Carrier thermalization; Amorphous silicon; Frohlich interaction | 1981 |
5 |
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Vardeny, Zeev Valentine | Recombination kinetics in ?-Si:H | Mort et al.1 reinterpreted our data on the relaxation of photoinduced absorption (PA) in a-Si:H. 2 We want to show that the proposed interpretation contradicts one basic feature of the data while our original interpretation is in good agreement with experiment. | Hydrogenated amorphous silicon; a-Si:H; Recombination kinetics; Photoinduced absorption; Decay; Relaxation | 1981 |
6 |
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Vardeny, Zeev Valentine | Relaxation of photoinduced sub-bandgap absorption in a-Si:H | The decay of photoinduced sub-bandgap absorption (PA) following pulsed excitation was studied in the temperature range 80 - 305K, in a-Si:H samples prepared by glow discharge and sputtering. The decay was interpreted in terms of bimolecular diffusion limited recombination involving dispersive trans... | Photoinduced absorption; Sub-bandgap absorption; Glow discharge; Sputtering; Decay | 1981 |
7 |
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Mattis, Daniel C.; Sutherland, Bill | Strange solutions to field theories in one spatial dimension | Many models of interacting particles rely heavily for their solution on restriction to one-dimensional motion and a linearized kinetic energy. We examine this in detail, and find that the linearization can lead to patently strange and possible spurious solutions in first quantization. The usual, co... | Eigenstates; Field theories | 1981 |