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The<sup>3</sup>He nuclear magnetic relaxation in nematically ordered Al<inf>2</inf>O<inf>3</inf>aerogels: Effects of <sup>4</sup>He and nitrogen pre-plating
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| dc.contributor.author | Stanislavovas A. | |
| dc.contributor.author | Kuzmin V. | |
| dc.contributor.author | Safiullin K. | |
| dc.contributor.author | Alakshin E. | |
| dc.contributor.author | Klochkov A. | |
| dc.contributor.author | Kutuzov M. | |
| dc.contributor.author | Tagirov M. | |
| dc.date.accessioned | 2022-02-09T20:34:43Z | |
| dc.date.available | 2022-02-09T20:34:43Z | |
| dc.date.issued | 2021 | |
| dc.identifier.issn | 0953-8984 | |
| dc.identifier.uri | https://dspace.kpfu.ru/xmlui/handle/net/169152 | |
| dc.description.abstract | The results of 3He gas pulsed NMR spin-lattice relaxation study in high-porosity (84.9%-97.9%) nematically ordered Al2O3 aerogels at 1.5 and 4.2 K are presented. The linear dependence of T 1 on gas pressure is observed in aerogels that are pre-plated by helium-4. Nitrogen pre-plating prior to helium-4 pre-plating weakly decreases the 3He gas spin-lattice relaxation rate. A few possible mechanisms plausibly involved in 3He nuclear magnetic relaxation in aerogels are considered. The suggested nuclear spin-lattice relaxation model due to some magnetically 'dirty' aerogel fibers allows to estimate the effective mean free path of 3He atoms in aerogel. | |
| dc.relation.ispartofseries | Journal of Physics Condensed Matter | |
| dc.subject | adsorption | |
| dc.subject | aerogel | |
| dc.subject | gas diffusion | |
| dc.subject | low temperature | |
| dc.subject | NMR, helium-3 | |
| dc.subject | relaxation | |
| dc.title | The<sup>3</sup>He nuclear magnetic relaxation in nematically ordered Al<inf>2</inf>O<inf>3</inf>aerogels: Effects of <sup>4</sup>He and nitrogen pre-plating | |
| dc.type | Article | |
| dc.relation.ispartofseries-issue | 19 | |
| dc.relation.ispartofseries-volume | 33 | |
| dc.collection | Публикации сотрудников КФУ | |
| dc.source.id | SCOPUS09538984-2021-33-19-SID85105469534 |
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Публикации сотрудников КФУ Scopus [24551]
Коллекция содержит публикации сотрудников Казанского федерального (до 2010 года Казанского государственного) университета, проиндексированные в БД Scopus, начиная с 1970г.