ESR studies of nitrogen atoms stabilized in aggregates of krypton–nitrogen nanoclusters immersed in superfluid helium
Impurity–helium condensates (IHCs) containing nitrogen and krypton atoms immersed in superfluid ⁴He
 have been studied via a CW electron spin resonance (ESR) technique. The IHCs are gel-like aggregates of nanoclusters
 composed of impurity species. It was found that the addition of k...
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| Veröffentlicht in: | Физика низких температур |
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| Datum: | 2012 |
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Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України
2012
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| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Zitieren: | ESR studies of nitrogen atoms stabilized in aggregates
 of krypton–nitrogen nanoclusters immersed in superfluid helium / S. Mao, R.E. Boltnev, V.V. Khmelenko, D.M. Lee // Физика низких температур. — 2012. — Т. 38, № 11. — С. 1313–1319. — Бібліогр.: 45 назв. — англ. |
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Digital Library of Periodicals of National Academy of Sciences of Ukraine| _version_ | 1862614759889698816 |
|---|---|
| author | Mao, S. Boltnev, R.E. Khmelenko, V.V. Lee, D.M. |
| author_facet | Mao, S. Boltnev, R.E. Khmelenko, V.V. Lee, D.M. |
| citation_txt | ESR studies of nitrogen atoms stabilized in aggregates
 of krypton–nitrogen nanoclusters immersed in superfluid helium / S. Mao, R.E. Boltnev, V.V. Khmelenko, D.M. Lee // Физика низких температур. — 2012. — Т. 38, № 11. — С. 1313–1319. — Бібліогр.: 45 назв. — англ. |
| collection | DSpace DC |
| container_title | Физика низких температур |
| description | Impurity–helium condensates (IHCs) containing nitrogen and krypton atoms immersed in superfluid ⁴He
have been studied via a CW electron spin resonance (ESR) technique. The IHCs are gel-like aggregates of nanoclusters
composed of impurity species. It was found that the addition of krypton atoms to the nitrogen–helium
gas mixture used for preparation of IHCs increases efficiency of stabilization of nitrogen atoms. We have
achieved high average (5·10¹⁹ cm⁻³) and local (2·10²¹ cm⁻³) concentrations of nitrogen atoms in kryptonnitrogen–helium
condensates. The analysis of ESR lines shows that three different sites exist for stabilization of
nitrogen atoms in krypton-nitrogen nanoclusters. Nitrogen atoms are stabilized in the krypton core of nanoclusters,
in the nitrogen molecular layer which covers the Kr core and on the surface of the nanoclusters. High concentrations
of nitrogen atoms achieved in IHCs provide an important step in the search for magnetic ordering effects
at low temperatures.
|
| first_indexed | 2025-11-29T11:57:15Z |
| format | Article |
| fulltext | |
| id | nasplib_isofts_kiev_ua-123456789-117923 |
| institution | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| issn | 0132-6414 |
| language | English |
| last_indexed | 2025-11-29T11:57:15Z |
| publishDate | 2012 |
| publisher | Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України |
| record_format | dspace |
| spelling | Mao, S. Boltnev, R.E. Khmelenko, V.V. Lee, D.M. 2017-05-27T13:27:16Z 2017-05-27T13:27:16Z 2012 ESR studies of nitrogen atoms stabilized in aggregates
 of krypton–nitrogen nanoclusters immersed in superfluid helium / S. Mao, R.E. Boltnev, V.V. Khmelenko, D.M. Lee // Физика низких температур. — 2012. — Т. 38, № 11. — С. 1313–1319. — Бібліогр.: 45 назв. — англ. 0132-6414 PACS: 67.80.–s, 61.46–w, 76.30.Rn, 76.30.–v https://nasplib.isofts.kiev.ua/handle/123456789/117923 Impurity–helium condensates (IHCs) containing nitrogen and krypton atoms immersed in superfluid ⁴He
 have been studied via a CW electron spin resonance (ESR) technique. The IHCs are gel-like aggregates of nanoclusters
 composed of impurity species. It was found that the addition of krypton atoms to the nitrogen–helium
 gas mixture used for preparation of IHCs increases efficiency of stabilization of nitrogen atoms. We have
 achieved high average (5·10¹⁹ cm⁻³) and local (2·10²¹ cm⁻³) concentrations of nitrogen atoms in kryptonnitrogen–helium
 condensates. The analysis of ESR lines shows that three different sites exist for stabilization of
 nitrogen atoms in krypton-nitrogen nanoclusters. Nitrogen atoms are stabilized in the krypton core of nanoclusters,
 in the nitrogen molecular layer which covers the Kr core and on the surface of the nanoclusters. High concentrations
 of nitrogen atoms achieved in IHCs provide an important step in the search for magnetic ordering effects
 at low temperatures. We take this opportunity to thank Adil Meraki, Patrick
 McColgan and Trevor Dragon for assembling experimental
 setup and participation in the experiments.
 The work was supported by grant № 010366-0137-2009
 Norman Hackerman Advanced Research Program, CRDF
 grant RUP1-7025-CG-11, RFBR grant 11-02-92500-CRDFE_a,
 and federal contract 11.519.11.6021 with Russian
 Federation Ministry of Education and Science. en Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України Физика низких температур К 75-летию Л.П. Межова-Деглина ESR studies of nitrogen atoms stabilized in aggregates of krypton–nitrogen nanoclusters immersed in superfluid helium Article published earlier |
| spellingShingle | ESR studies of nitrogen atoms stabilized in aggregates of krypton–nitrogen nanoclusters immersed in superfluid helium Mao, S. Boltnev, R.E. Khmelenko, V.V. Lee, D.M. К 75-летию Л.П. Межова-Деглина |
| title | ESR studies of nitrogen atoms stabilized in aggregates of krypton–nitrogen nanoclusters immersed in superfluid helium |
| title_full | ESR studies of nitrogen atoms stabilized in aggregates of krypton–nitrogen nanoclusters immersed in superfluid helium |
| title_fullStr | ESR studies of nitrogen atoms stabilized in aggregates of krypton–nitrogen nanoclusters immersed in superfluid helium |
| title_full_unstemmed | ESR studies of nitrogen atoms stabilized in aggregates of krypton–nitrogen nanoclusters immersed in superfluid helium |
| title_short | ESR studies of nitrogen atoms stabilized in aggregates of krypton–nitrogen nanoclusters immersed in superfluid helium |
| title_sort | esr studies of nitrogen atoms stabilized in aggregates of krypton–nitrogen nanoclusters immersed in superfluid helium |
| topic | К 75-летию Л.П. Межова-Деглина |
| topic_facet | К 75-летию Л.П. Межова-Деглина |
| url | https://nasplib.isofts.kiev.ua/handle/123456789/117923 |
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