| | 1 | Author
| David Stephenson, JohnA S Smith, St Augustine, Tobago Trinidad | Requires cookie* | | | Title
| Low Frequency NQR using Double Contact Cross-relaxation  | | | | Abstract
| A cross-relaxation technique is described which involves two spin contacts per double reso-nance cycle. The result is an improvement in signal to noise ratio particularly at low frequencies. Experimental spectra and analyses are presented: 14 N in ammonium sulphate showing that the tech-nique gives essentially the same information as previous studies; 14 N in ammonium dichromate determining e 2 Qq/h as (76±3) kHz and r} = 0.84±.04; 7 Li in lithium acetylacetonate for which the spectrum (corrected for Zeeman distortion) yields e~Qq/h = (152 ±5) kHz and r\ -.5 ±.2. Calculated spectra are presented to demonstrate the r\ dependence of the line shapes for 7 Li. | | | |
Reference
| Z. Naturforsch. 55a, 37—10 (2000); received September 11 1999 | | | |
Published
| 2000 | | | |
Keywords
| NQR, l4 N, 7 Li, Low Frequency, Double Resonance | | | |
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| default:Reihe_A/55/ZNA-2000-55a-0037.pdf | | | | Identifier
| ZNA-2000-55a-0037 | | | | Volume
| 55 | |
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