Structural formation and thermal relaxation of quench-condensed Kr films: effect on EPR spectrum of trapped hydrogen atoms
Hydrogen atoms were trapped in a quench condensed Kr matrix and investigated by EPR. Each hyperfine component is a superposition of broad and narrow line. The spectrum of narrow lines shows an axial anisotropy of the hyperfine structure constant. The extent of the anisotropy is found to depend on...
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| Опубліковано в: : | Физика низких температур |
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| Дата: | 2007 |
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| Формат: | Стаття |
| Мова: | English |
| Опубліковано: |
Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України
2007
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| Онлайн доступ: | https://nasplib.isofts.kiev.ua/handle/123456789/121782 |
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| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Цитувати: | Structural formation and thermal relaxation of quench-condensed Kr films: effect on EPR spectrum of trapped hydrogen atoms / Yu.A. Dmitriev // Физика низких температур. — 2007. — Т. 33, № 6-7. — С. 661-667. — Бібліогр.: 21 назв. — англ. |
Репозитарії
Digital Library of Periodicals of National Academy of Sciences of Ukraine| id |
nasplib_isofts_kiev_ua-123456789-121782 |
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Dmitriev, Yu.A. 2017-06-16T07:45:35Z 2017-06-16T07:45:35Z 2007 Structural formation and thermal relaxation of quench-condensed Kr films: effect on EPR spectrum of trapped hydrogen atoms / Yu.A. Dmitriev // Физика низких температур. — 2007. — Т. 33, № 6-7. — С. 661-667. — Бібліогр.: 21 назв. — англ. 0132-6414 PACS: 68.55.–a; 68.55.Ln; 76.30.–v; 61.72.Nn https://nasplib.isofts.kiev.ua/handle/123456789/121782 Hydrogen atoms were trapped in a quench condensed Kr matrix and investigated by EPR. Each hyperfine component is a superposition of broad and narrow line. The spectrum of narrow lines shows an axial anisotropy of the hyperfine structure constant. The extent of the anisotropy is found to depend on both the deposition temperature, Tdep, and the temperature of the solid sample, Tsample. As Tdep increases, the broad lines diminish while the anisotropy of the spectrum of narrow lines becomes less pronounced. The spectrum of narrow lines originate from H atoms in well defined environments and is attributed to a superposition of two spectra given by the atoms in substitutional fcc and hcp sites. The spectrum of broad lines is assumed to originate from the atoms trapped in highly disordered regions in the lattice. These regions are found to start relaxing at Tsample as low as 12 K. Thanks are due to M.E. Kaimakov for active participation in part of these investigations and for reading the manuscript. en Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України Физика низких температур Quantum Crystals Structural formation and thermal relaxation of quench-condensed Kr films: effect on EPR spectrum of trapped hydrogen atoms Article published earlier |
| institution |
Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| collection |
DSpace DC |
| title |
Structural formation and thermal relaxation of quench-condensed Kr films: effect on EPR spectrum of trapped hydrogen atoms |
| spellingShingle |
Structural formation and thermal relaxation of quench-condensed Kr films: effect on EPR spectrum of trapped hydrogen atoms Dmitriev, Yu.A. Quantum Crystals |
| title_short |
Structural formation and thermal relaxation of quench-condensed Kr films: effect on EPR spectrum of trapped hydrogen atoms |
| title_full |
Structural formation and thermal relaxation of quench-condensed Kr films: effect on EPR spectrum of trapped hydrogen atoms |
| title_fullStr |
Structural formation and thermal relaxation of quench-condensed Kr films: effect on EPR spectrum of trapped hydrogen atoms |
| title_full_unstemmed |
Structural formation and thermal relaxation of quench-condensed Kr films: effect on EPR spectrum of trapped hydrogen atoms |
| title_sort |
structural formation and thermal relaxation of quench-condensed kr films: effect on epr spectrum of trapped hydrogen atoms |
| author |
Dmitriev, Yu.A. |
| author_facet |
Dmitriev, Yu.A. |
| topic |
Quantum Crystals |
| topic_facet |
Quantum Crystals |
| publishDate |
2007 |
| language |
English |
| container_title |
Физика низких температур |
| publisher |
Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України |
| format |
Article |
| description |
Hydrogen atoms were trapped in a quench condensed Kr matrix and investigated by EPR. Each hyperfine
component is a superposition of broad and narrow line. The spectrum of narrow lines shows an axial anisotropy
of the hyperfine structure constant. The extent of the anisotropy is found to depend on both the deposition
temperature, Tdep, and the temperature of the solid sample, Tsample. As Tdep increases, the broad lines diminish
while the anisotropy of the spectrum of narrow lines becomes less pronounced. The spectrum of
narrow lines originate from H atoms in well defined environments and is attributed to a superposition of two
spectra given by the atoms in substitutional fcc and hcp sites. The spectrum of broad lines is assumed to originate
from the atoms trapped in highly disordered regions in the lattice. These regions are found to start relaxing
at Tsample as low as 12 K.
|
| issn |
0132-6414 |
| url |
https://nasplib.isofts.kiev.ua/handle/123456789/121782 |
| citation_txt |
Structural formation and thermal relaxation of quench-condensed Kr films: effect on EPR spectrum of trapped hydrogen atoms / Yu.A. Dmitriev // Физика низких температур. — 2007. — Т. 33, № 6-7. — С. 661-667. — Бібліогр.: 21 назв. — англ. |
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AT dmitrievyua structuralformationandthermalrelaxationofquenchcondensedkrfilmseffectoneprspectrumoftrappedhydrogenatoms |
| first_indexed |
2025-12-07T17:59:11Z |
| last_indexed |
2025-12-07T17:59:11Z |
| _version_ |
1850873322995187712 |