Shift of close-packed basal planes as an order parameter of transitions between antiferromangetic phases in solid oxygen: II. Temperature/pressure dependence of sound velocities and lattice parameters
In the present paper we generalize a phenomenological model developed by Gomonay and Loktev (Fiz. Nizk. Temp. 31, 1002 (2005)) for the description of magnetostructural phase transitions and related peculiarities of elastic properties in solid oxygen under high pressure and/or temperature below 40 K....
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| Published in: | Физика низких температур |
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| Date: | 2007 |
| Main Authors: | , |
| Format: | Article |
| Language: | English |
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Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України
2007
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| Online Access: | https://nasplib.isofts.kiev.ua/handle/123456789/121772 |
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| Journal Title: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Cite this: | Shift of close-packed basal planes as an order parameter
 of transitions between antiferromangetic phases in solid
 oxygen: II. Temperature/pressure dependence of sound
 velocities and lattice parameters / E.V. Gomonay, V.M. Loktev // Физика низких температур. — 2007. — Т. 33, № 6-7. — С. 711-718. — Бібліогр.: 16 назв. — англ. |
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Digital Library of Periodicals of National Academy of Sciences of Ukraine| _version_ | 1862549578732011520 |
|---|---|
| author | Gomonay, E.V. Loktev, V.M. |
| author_facet | Gomonay, E.V. Loktev, V.M. |
| citation_txt | Shift of close-packed basal planes as an order parameter
 of transitions between antiferromangetic phases in solid
 oxygen: II. Temperature/pressure dependence of sound
 velocities and lattice parameters / E.V. Gomonay, V.M. Loktev // Физика низких температур. — 2007. — Т. 33, № 6-7. — С. 711-718. — Бібліогр.: 16 назв. — англ. |
| collection | DSpace DC |
| container_title | Физика низких температур |
| description | In the present paper we generalize a phenomenological model developed by Gomonay and Loktev (Fiz. Nizk. Temp. 31, 1002 (2005)) for the description of magnetostructural phase transitions and related peculiarities of elastic properties in solid oxygen under high pressure and/or temperature below 40 K. We show that variation of all the lattice parameters in the vicinity of a–b phase transition is due to both the shift of basal closed-packed planes and appearance of the long-range magnetic order. Competition between these two factors from one side and lattice compression below Tab from another produces nonmonotonic temperature dependence of lattice parameter b (along monoclinic axis). Steep decrease of the sound velocities in the vicinity of Tab can be explained by the softening of the lattice with respect to shift of the close-packed planes (described by the constant K₂) prior to phase transition point. We anticipate an analogous softening of sound velocities in the vicinity of a–d phase transition and nonmonotonic pressure dependence of sound velocities in a phase.
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| first_indexed | 2025-11-25T20:35:29Z |
| format | Article |
| fulltext | |
| id | nasplib_isofts_kiev_ua-123456789-121772 |
| institution | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| issn | 0132-6414 |
| language | English |
| last_indexed | 2025-11-25T20:35:29Z |
| publishDate | 2007 |
| publisher | Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України |
| record_format | dspace |
| spelling | Gomonay, E.V. Loktev, V.M. 2017-06-16T07:13:37Z 2017-06-16T07:13:37Z 2007 Shift of close-packed basal planes as an order parameter
 of transitions between antiferromangetic phases in solid
 oxygen: II. Temperature/pressure dependence of sound
 velocities and lattice parameters / E.V. Gomonay, V.M. Loktev // Физика низких температур. — 2007. — Т. 33, № 6-7. — С. 711-718. — Бібліогр.: 16 назв. — англ. 0132-6414 PACS: 75.50.Ee; 61.50.Ks; 81.40.Vw https://nasplib.isofts.kiev.ua/handle/123456789/121772 In the present paper we generalize a phenomenological model developed by Gomonay and Loktev (Fiz. Nizk. Temp. 31, 1002 (2005)) for the description of magnetostructural phase transitions and related peculiarities of elastic properties in solid oxygen under high pressure and/or temperature below 40 K. We show that variation of all the lattice parameters in the vicinity of a–b phase transition is due to both the shift of basal closed-packed planes and appearance of the long-range magnetic order. Competition between these two factors from one side and lattice compression below Tab from another produces nonmonotonic temperature dependence of lattice parameter b (along monoclinic axis). Steep decrease of the sound velocities in the vicinity of Tab can be explained by the softening of the lattice with respect to shift of the close-packed planes (described by the constant K₂) prior to phase transition point. We anticipate an analogous softening of sound velocities in the vicinity of a–d phase transition and nonmonotonic pressure dependence of sound velocities in a phase. We would like to acknowledge all the participants of
 CC-2006 Conference for keen interest to our presentations
 and fruitful discussions. en Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України Физика низких температур Classical Cryocrystals Shift of close-packed basal planes as an order parameter of transitions between antiferromangetic phases in solid oxygen: II. Temperature/pressure dependence of sound velocities and lattice parameters Article published earlier |
| spellingShingle | Shift of close-packed basal planes as an order parameter of transitions between antiferromangetic phases in solid oxygen: II. Temperature/pressure dependence of sound velocities and lattice parameters Gomonay, E.V. Loktev, V.M. Classical Cryocrystals |
| title | Shift of close-packed basal planes as an order parameter of transitions between antiferromangetic phases in solid oxygen: II. Temperature/pressure dependence of sound velocities and lattice parameters |
| title_full | Shift of close-packed basal planes as an order parameter of transitions between antiferromangetic phases in solid oxygen: II. Temperature/pressure dependence of sound velocities and lattice parameters |
| title_fullStr | Shift of close-packed basal planes as an order parameter of transitions between antiferromangetic phases in solid oxygen: II. Temperature/pressure dependence of sound velocities and lattice parameters |
| title_full_unstemmed | Shift of close-packed basal planes as an order parameter of transitions between antiferromangetic phases in solid oxygen: II. Temperature/pressure dependence of sound velocities and lattice parameters |
| title_short | Shift of close-packed basal planes as an order parameter of transitions between antiferromangetic phases in solid oxygen: II. Temperature/pressure dependence of sound velocities and lattice parameters |
| title_sort | shift of close-packed basal planes as an order parameter of transitions between antiferromangetic phases in solid oxygen: ii. temperature/pressure dependence of sound velocities and lattice parameters |
| topic | Classical Cryocrystals |
| topic_facet | Classical Cryocrystals |
| url | https://nasplib.isofts.kiev.ua/handle/123456789/121772 |
| work_keys_str_mv | AT gomonayev shiftofclosepackedbasalplanesasanorderparameteroftransitionsbetweenantiferromangeticphasesinsolidoxygeniitemperaturepressuredependenceofsoundvelocitiesandlatticeparameters AT loktevvm shiftofclosepackedbasalplanesasanorderparameteroftransitionsbetweenantiferromangeticphasesinsolidoxygeniitemperaturepressuredependenceofsoundvelocitiesandlatticeparameters |