Nuances of multi-quantum excitation in solid state NMR of quadrupolar nuclei†
| dc.contributor.author | Srivastava, Deepansh | |
| dc.contributor.author | Ramachandran, Ramesh | |
| dc.date.accessioned | 2020-12-07T06:04:25Z | |
| dc.date.available | 2020-12-07T06:04:25Z | |
| dc.date.issued | 2013 | |
| dc.description.abstract | In this article, a simple heuristic approach that is in agreement with the density operator formalism is presented for understanding the mechanism of multi-quantum (MQ) excitation in half-integral quadrupolar systems. Employing the population level diagram of the nuclear spin states, the effect of radio-frequency (RF) pulses on multi-level systems is described. Based on this approach, alternate schemes that involve non-equilibrium spin states are proposed for improving the sensitivity of MQ experiments in spin 3/2 and 5/2 systems. Additionally, the utility of frequency sweep techniques in the excitation of MQ transitions is discussed. The results obtained from the analytic theory are substantiated through numerical simulations. | en_US |
| dc.identifier.citation | RSC Advances, 3(47),pp.25231-25236. | en_US |
| dc.identifier.other | https://doi.org/10.1039/C3RA45195J | |
| dc.identifier.uri | https://pubs.rsc.org/en/Content/ArticleLanding/RA/2013/C3RA45195J#!divAbstract | |
| dc.identifier.uri | http://hdl.handle.net/123456789/2717 | |
| dc.language.iso | en | en_US |
| dc.publisher | American Chemical Society | en_US |
| dc.subject | Heuristic approach | en_US |
| dc.subject | Multi-quantum | en_US |
| dc.subject | Agreement | en_US |
| dc.title | Nuances of multi-quantum excitation in solid state NMR of quadrupolar nuclei† | en_US |
| dc.type | Article | en_US |