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| Creator | Title | Description | Subject | Date | ||
|---|---|---|---|---|---|---|
| 1 |
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Ailion, David Charles | 93Nb NMR in the imcommensurate and quasi-commensurate phases of barium sodium niobate | NMR spectra have been measured for the quadrupole perturbed 1/2 -1/2 transition of 9 3Nb in barium sodium niobate (BSN) between 300 and 650 K. The spectra are inhomogeneously broadened in the incommensurate (/) phase between T7 = 580 K and r c = 540 K as well as in the quasicommensurate (QC) phase ... | NMR; Spectra; Barium sodium niobate; Line shapes | 1994 |
| 2 |
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Williams, Clayton C.; Stringfellow, Gerald B. | Effect of substrate misorientation on ordering in Ga0.5In0.5P | Ordering produced in Gao.5Ino.5P epitaxial layers grown by OMVPE can be controlled by variations in the substrate misorientation as well as the growth temperature and the growth rate. The ordering produced at a growth temperature of 620°C and a relatively low growth rate of 0.5 /μm/hr is found to ... | Ga0.5In0.5P; Epitaxial layers; Epitaxial growth; OMVPE | 1994 |
| 3 |
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Symko, Orest George | Formation of AlCuFe quasicrystalline thin films by solid state diffusion | We show that thin films 3000 A in thickness of the icosahedral AlCuFe phase can be formed by solid state diffusion of sputtered Al, Cu, and Fe layers. As for bulk materials, we propose that the icosahedral phase grows by diffusion of the 0.1 in the A13Fe layer previously formed by interdiffusion of... | AlCuFe; Quasicrystalline thin films; Solid state diffusion; Icosahedral phase | 1994 |
| 4 |
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Vardeny, Zeev Valentine | Leng et al. reply | Conwell, Rothberg, and Mizes (CRM) claim [1] that, as a result of chain length distribution and vibronic sidebands of electronic levels in PPV films, there is little correlation between increase of pump photon energy (Hw) and increase of electronic energy, and therefore data from excitation spectros... | Chain length distribution; Vibronic sidebands; PPV films; Pump photon energy | 1994 |
| 5 |
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Ailion, David Charles | NMR in substitutionally disordered incommensurate (Rb1-xKx)2ZnCl4 | The impurity-concentration dependence of the 8 7Rb NMR line shapes and phason-induced spin-lattice relaxation rates has been studied over a wide temperature range in substitutional^ disordered incommensurate (Rb1_xKJ C)2ZnCl4 for x =0.00, 0.02, and 0.06. The results yield information on the impurity... | NMR; Line shapes; Phasons; Spin-lattice; Phase fluctuations | 1994 |
| 6 |
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Ailion, David Charles | Thermal fluctuations and NMR spectra of incommensurate insulators | The effects of thermal order-parameter fluctuations on the NMR line shape of incommensurate systems are evaluated within the mean-field Landau theory and the results are compared with the 8 7Rb and 3 9K 1/2 -1/2 NMR spectra of Rb2ZnCl4 and K2Se04 just below the paraelectric-incommensurate transition... | NMR spectra; Thermal fluctuations; Line shapes; Incommensurate insulators | 1994 |
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