Mitsui model with diagonal strains: A unified description of external pressure effect and thermal expansion of Rochelle salt NaKC₄H₄O₆·4H₂O
We elaborate a modification of the deformable two-sublattice Mitsui model of [Levitskii R.R. et al., Phys. Rev. B. 2003, 67, 174112] and [Levitskii R.R. et al., Condens. Matter Phys., 2005, 8, 881] that consistently takes into account diagonal components of the strain tensor, arising either due to e...
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| Дата: | 2011 |
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| Формат: | Стаття |
| Мова: | English |
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Інститут фізики конденсованих систем НАН України
2011
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| Назва видання: | Condensed Matter Physics |
| Онлайн доступ: | http://dspace.nbuv.gov.ua/handle/123456789/120027 |
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| Цитувати: | Mitsui model with diagonal strains: A unified description of external pressure effect and thermal expansion of Rochelle salt NaKC₄H₄O₆·4H₂O / A.P. Moina, R.R. Levitskii, I.R. Zachek // Condensed Matter Physics. — 2011. — Т. 14, № 4. — С. 43602:1-18. — Бібліогр.: 44 назв. — англ. |
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irk-123456789-1200272017-06-11T03:03:29Z Mitsui model with diagonal strains: A unified description of external pressure effect and thermal expansion of Rochelle salt NaKC₄H₄O₆·4H₂O Moina, A.P. Levitskii, R.R. Zachek, I.R. We elaborate a modification of the deformable two-sublattice Mitsui model of [Levitskii R.R. et al., Phys. Rev. B. 2003, 67, 174112] and [Levitskii R.R. et al., Condens. Matter Phys., 2005, 8, 881] that consistently takes into account diagonal components of the strain tensor, arising either due to external pressures or due to thermal expansion. We calculate the related to those strains thermal, piezoelectric, and elastic characteristics of the system. Using the developed fitting procedure, a set of the model parameters is found for the case of Rochelle salt crystals, providing a satisfactory agreement with the available experimental data for the hydrostatic and uniaxial pressure dependences of the Curie temperatures, temperature dependences of spontaneous diagonal strains, linear thermal expansion coefficients, elastic constants cijE and ci₄E, piezoelectric coefficients d₁i and g₁i (i=1,2,3). The hydrostatic pressure variation of dielectric permittivity is described using a derived expression for the permittivity of a partially clamped crystal. The dipole moments and the asymmetry parameter of Rochelle salt are found to increase with hydrostatic pressure. Запропоновано модифiкацiю деформiвної двопiдґраткової моделi Мiцуї робiт [Levitskii R.R. et al, Phys. Rev. B. 2003, 67, 174112] та [Levitskii R.R. et al., Condens. Matter Phys., 2005, 8, 881], яка послiдовно враховує дiагональнi компоненти тензора деформацiй, що виникають пiд дiєю зовнiшнiх тискiв чи внаслiдок теплового розширення. Розраховано пов’язанi з цими деформацiями тепловi, п’єзоелектричнi та пружнi характеристики системи. Використовуючи запропоновану схему, для кристалiв сеґнетової солi знайдено такий набiр параметрiв теорiї, що забезпечує задовiльне узгодження з експериментальними даними для залежностей температур Кюрi вiд гiдростатичного та одновiсних тискiв, а також температурних залежностей теплових деформацiй, лiнiйних коефiцiєнтiв теплового розширення, пружних сталих cEij i cEi₄, п’єзоелектричних коефiцiєнтiв d₁i i g₁i (i = 1, 2, 3). Залежностi дiелектричної проникностi вiд гiдростатичного тиску описано за допомогою отриманого в роботi виразу для проникностi частково затиснутого кристалу. Виявлено, що дипольнi моменти та параметр асиметрiї в сеґнетовiй солi зростають з гiдростатичним тиском. 2011 Article Mitsui model with diagonal strains: A unified description of external pressure effect and thermal expansion of Rochelle salt NaKC₄H₄O₆·4H₂O / A.P. Moina, R.R. Levitskii, I.R. Zachek // Condensed Matter Physics. — 2011. — Т. 14, № 4. — С. 43602:1-18. — Бібліогр.: 44 назв. — англ. 1607-324X PACS: 65.40.De, 77.80.B-, 77.65.Bn, 65.40.Ba, 77.22.Ch DOI:10.5488/CMP.14.43602 arXiv:1108.2160 http://dspace.nbuv.gov.ua/handle/123456789/120027 en Condensed Matter Physics Інститут фізики конденсованих систем НАН України |
| institution |
Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| collection |
DSpace DC |
| language |
English |
| description |
We elaborate a modification of the deformable two-sublattice Mitsui model of [Levitskii R.R. et al., Phys. Rev. B. 2003, 67, 174112] and [Levitskii R.R. et al., Condens. Matter Phys., 2005, 8, 881] that consistently takes into account diagonal components of the strain tensor, arising either due to external pressures or due to thermal expansion. We calculate the related to those strains thermal, piezoelectric, and elastic characteristics of the system. Using the developed fitting procedure, a set of the model parameters is found for the case of Rochelle salt crystals, providing a satisfactory agreement with the available experimental data for the hydrostatic and uniaxial pressure dependences of the Curie temperatures, temperature dependences of spontaneous diagonal strains, linear thermal expansion coefficients, elastic constants cijE and ci₄E, piezoelectric coefficients d₁i and g₁i (i=1,2,3). The hydrostatic pressure variation of dielectric permittivity is described using a derived expression for the permittivity of a partially clamped crystal. The dipole moments and the asymmetry parameter of Rochelle salt are found to increase with hydrostatic pressure. |
| format |
Article |
| author |
Moina, A.P. Levitskii, R.R. Zachek, I.R. |
| spellingShingle |
Moina, A.P. Levitskii, R.R. Zachek, I.R. Mitsui model with diagonal strains: A unified description of external pressure effect and thermal expansion of Rochelle salt NaKC₄H₄O₆·4H₂O Condensed Matter Physics |
| author_facet |
Moina, A.P. Levitskii, R.R. Zachek, I.R. |
| author_sort |
Moina, A.P. |
| title |
Mitsui model with diagonal strains: A unified description of external pressure effect and thermal expansion of Rochelle salt NaKC₄H₄O₆·4H₂O |
| title_short |
Mitsui model with diagonal strains: A unified description of external pressure effect and thermal expansion of Rochelle salt NaKC₄H₄O₆·4H₂O |
| title_full |
Mitsui model with diagonal strains: A unified description of external pressure effect and thermal expansion of Rochelle salt NaKC₄H₄O₆·4H₂O |
| title_fullStr |
Mitsui model with diagonal strains: A unified description of external pressure effect and thermal expansion of Rochelle salt NaKC₄H₄O₆·4H₂O |
| title_full_unstemmed |
Mitsui model with diagonal strains: A unified description of external pressure effect and thermal expansion of Rochelle salt NaKC₄H₄O₆·4H₂O |
| title_sort |
mitsui model with diagonal strains: a unified description of external pressure effect and thermal expansion of rochelle salt nakc₄h₄o₆·4h₂o |
| publisher |
Інститут фізики конденсованих систем НАН України |
| publishDate |
2011 |
| url |
http://dspace.nbuv.gov.ua/handle/123456789/120027 |
| citation_txt |
Mitsui model with diagonal strains: A unified description of external pressure effect and thermal expansion of Rochelle salt NaKC₄H₄O₆·4H₂O / A.P. Moina, R.R. Levitskii, I.R. Zachek // Condensed Matter Physics. — 2011. — Т. 14, № 4. — С. 43602:1-18. — Бібліогр.: 44 назв. — англ. |
| series |
Condensed Matter Physics |
| work_keys_str_mv |
AT moinaap mitsuimodelwithdiagonalstrainsaunifieddescriptionofexternalpressureeffectandthermalexpansionofrochellesaltnakc4h4o64h2o AT levitskiirr mitsuimodelwithdiagonalstrainsaunifieddescriptionofexternalpressureeffectandthermalexpansionofrochellesaltnakc4h4o64h2o AT zachekir mitsuimodelwithdiagonalstrainsaunifieddescriptionofexternalpressureeffectandthermalexpansionofrochellesaltnakc4h4o64h2o |
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2023-10-18T20:36:02Z |
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2023-10-18T20:36:02Z |
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