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| Creator | Title | Description | Subject | Date | ||
|---|---|---|---|---|---|---|
| 1 |
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Gondolo, Paolo | Groups of galaxies in the local supercluster: some hypotheses on the evolutionary stage | We present a method capable of determining the evolutionary stage of bound, isolated systems of galaxies. In particular, we apply it to a sample of groups, belonging to the Local Supercluster, taken from the Geller and Huchra's (1983) catalogue. We find that most of them are still in the phase of c... | Evolution of galaxy clusters | 1988 |
| 2 |
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Mattis, Daniel C. | Mattis and Pan reply | After several independent calculations failed to confirm our published1 numbers on the ground-state energy of the s = 1/2 antiferromagnet in two dimensions, we checked our computer programs and found some deplorable errors introduced in proceeding from one dimension to two. | Ground-state energy; Antiferromagnets; Long-range order | 1988 |
| 3 |
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Williams, Clayton C. | Measurement of in-plane magnetization by force microscopy | We present data which show that the magnetic force microscope is capable of detecting the component of the magnetic field parallel to the surface of a sample under study. Images of bits in a Co-alloy thin-film disk and of laser-written bits in a TbFe film were taken with a magnetized tip tilted at ... | Co-alloy disc; Magnetization | 1988 |
| 4 |
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Ailion, David Charles | NMR lineshapes and order parameter determination in proton pseudo-spin glasses | The quadrupole-perturbed NMR line shape has been evaluated in the local approximation for an arbitrary static random-field distribution coexisting with Gaussian time-fluctuating random fields. The special case of a spin-glass-type static local random-field distribution is treated also. The results ... | NMR; Nuclear magnetic resonance; Line shape; Random fields; Proton pseudo-spin-glasses | 1988 |
| 5 |
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Williams, Clayton C. | Noise reduction technique for scanning tunneling microscopy | Noise stemming from mechanical vibration, electronic noise, or low frequency (l / f power spectrum) inherent in the tunneling process, often limits the resolution, speed, or range of application of scanning tunneling microscopy (STM). We demonstrate a technique for minimizing the effect of these noi... | Noise reduction; Dithering; Graphite | 1988 |
| 6 |
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Vardeny, Zeev Valentine; Ehrenfreund, Eitan A. | Optically detected magnetic resonance study of recombination mechanisms in polythiophene | From detailed optically detected magnetic resonance measurements in polythiophene, we show that the g=2.003 signal is luminescence enhancing, and that the signal comes from a broad photoluminescence band peaking near 1.65 eV. This band is tentatively assigned to the radiative recombination of polaro... | Recombination mechanisms | 1988 |
| 7 |
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Ailion, David Charles; Morris, Alan H. | Quantitative assessment of pulmonary edema by nuclear magnetic resonance methods | Considerable progress has been made in the application of nuclear magnetic resonance (NMR) imaging and nonimaging techniques to the quantitative assessment of pulmonary edema. NMR measurements offer the advantages of being noninvasive, relatively rapid, and easily repeatable. In addition, NMR imagin... | Quantitative assessment | 1988 |
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