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Electron paramagnetic resonance studies of a viscous nematic liquid crystal: evidence counter to a second-order phase change
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Gelerinter, E. Sheley, C. F. Fryburg, G. C. Shutt, W. E. |
| Copyright Year | 1972 |
| Description | The ordering in a viscous, nematic, liquid crystal was studied using vanadyl acetyl acetonate and several nitroxides as paramagnetic probes. The ordering curve for VAAC at both K-band and X-band shows a slope discontinuity at a reduced temperature of 0.85. This discontinuity is caused by the tumbling time of the VAAC becoming comparable with the hyperfine splitting. The slope discontinuity is not present in the ordering curves of the nitroxides. The results are taken as evidence counter to the presence of a second-order phase transition. |
| File Size | 550610 |
| Page Count | 13 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19730004837 |
| Archival Resource Key | ark:/13960/t5x688760 |
| Language | English |
| Publisher Date | 1972-12-01 |
| Access Restriction | Open |
| Subject Keyword | Materials, Nonmetallic Vanadyl Compounds Acetyl Compounds Electron Paramagnetic Resonance Amines Liquid Crystals Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
