Low-temperature phase segregation in La₂/₃Ba₁/₃MnO₃: Manifestation of nonequilibrium thermodynamics
Thermodynamic characteristics of the perovskite-like compound La₂/₃Ba₁/₃MnO₃ exhibiting structural phase transformation of the martensitic type with characteristic temperature Ts = 200 K have been studied in the temperature range 2–340 K. Step-like hysteretic temperature behavior of the effective...
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| Дата: | 2009 |
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| Автори: | , , , , , , |
| Формат: | Стаття |
| Мова: | English |
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Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України
2009
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| Назва видання: | Физика низких температур |
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| Онлайн доступ: | http://dspace.nbuv.gov.ua/handle/123456789/118970 |
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| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Цитувати: | Low-temperature phase segregation in La₂/₃Ba₁/₃MnO₃: Manifestation of nonequilibrium thermodynamics / A.B. Beznosov, E.L. Fertman, V.A. Desnenko, A. Feher,M. Kajòaková, C. Ritter, D. Khalyavin // Физика низких температур. — 2009. — Т. 35, № 6. — С. 571–577. — Бібліогр.: 31 назв. — англ. |
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irk-123456789-1189702017-06-03T03:02:47Z Low-temperature phase segregation in La₂/₃Ba₁/₃MnO₃: Manifestation of nonequilibrium thermodynamics Beznosov, A.B. Fertman, E.L. Desnenko, V.A. Feher, A. Kajòaková, M. Ritter, C. Khalyavin, D. Низкотемпеpатуpный магнетизм Thermodynamic characteristics of the perovskite-like compound La₂/₃Ba₁/₃MnO₃ exhibiting structural phase transformation of the martensitic type with characteristic temperature Ts = 200 K have been studied in the temperature range 2–340 K. Step-like hysteretic temperature behavior of the effective heat capacity has been revealed at 150–250 K and attributed to the discrete kinetics and a latent heat of the martensitic transformation. Magnetic subsystem was found exhibiting magnetic glass state below 220 K and temperature hysteresis of the magnetic susceptibility brightly pronounced in the 40–100 K and 180–230 K regions. The Debye and Einstein temperatures, Ѳ D = 230 K and Ѳ E = 500 K, respectively, derived from the experimental Debye–Waller factors for La/Ba, Mn and O sublattices, have been used to refine contributions from the structural and magnetic transformations to the heat capacity and to reveal thermodynamically nonequilibrium states. 2009 Article Low-temperature phase segregation in La₂/₃Ba₁/₃MnO₃: Manifestation of nonequilibrium thermodynamics / A.B. Beznosov, E.L. Fertman, V.A. Desnenko, A. Feher,M. Kajòaková, C. Ritter, D. Khalyavin // Физика низких температур. — 2009. — Т. 35, № 6. — С. 571–577. — Бібліогр.: 31 назв. — англ. 0132-6414 PACS: 75.30.–m, 65.40.Ba, 81.30.Kf, 65.40.gd http://dspace.nbuv.gov.ua/handle/123456789/118970 en Физика низких температур Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України |
| institution |
Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| collection |
DSpace DC |
| language |
English |
| topic |
Низкотемпеpатуpный магнетизм Низкотемпеpатуpный магнетизм |
| spellingShingle |
Низкотемпеpатуpный магнетизм Низкотемпеpатуpный магнетизм Beznosov, A.B. Fertman, E.L. Desnenko, V.A. Feher, A. Kajòaková, M. Ritter, C. Khalyavin, D. Low-temperature phase segregation in La₂/₃Ba₁/₃MnO₃: Manifestation of nonequilibrium thermodynamics Физика низких температур |
| description |
Thermodynamic characteristics of the perovskite-like compound La₂/₃Ba₁/₃MnO₃ exhibiting structural
phase transformation of the martensitic type with characteristic temperature Ts = 200 K have been studied in the
temperature range 2–340 K. Step-like hysteretic temperature behavior of the effective heat capacity has been revealed
at 150–250 K and attributed to the discrete kinetics and a latent heat of the martensitic transformation.
Magnetic subsystem was found exhibiting magnetic glass state below 220 K and temperature hysteresis of the
magnetic susceptibility brightly pronounced in the 40–100 K and 180–230 K regions. The Debye and Einstein
temperatures, Ѳ D = 230 K and Ѳ E = 500 K, respectively, derived from the experimental Debye–Waller factors for
La/Ba, Mn and O sublattices, have been used to refine contributions from the structural and magnetic transformations
to the heat capacity and to reveal thermodynamically nonequilibrium states. |
| format |
Article |
| author |
Beznosov, A.B. Fertman, E.L. Desnenko, V.A. Feher, A. Kajòaková, M. Ritter, C. Khalyavin, D. |
| author_facet |
Beznosov, A.B. Fertman, E.L. Desnenko, V.A. Feher, A. Kajòaková, M. Ritter, C. Khalyavin, D. |
| author_sort |
Beznosov, A.B. |
| title |
Low-temperature phase segregation in La₂/₃Ba₁/₃MnO₃: Manifestation of nonequilibrium thermodynamics |
| title_short |
Low-temperature phase segregation in La₂/₃Ba₁/₃MnO₃: Manifestation of nonequilibrium thermodynamics |
| title_full |
Low-temperature phase segregation in La₂/₃Ba₁/₃MnO₃: Manifestation of nonequilibrium thermodynamics |
| title_fullStr |
Low-temperature phase segregation in La₂/₃Ba₁/₃MnO₃: Manifestation of nonequilibrium thermodynamics |
| title_full_unstemmed |
Low-temperature phase segregation in La₂/₃Ba₁/₃MnO₃: Manifestation of nonequilibrium thermodynamics |
| title_sort |
low-temperature phase segregation in la₂/₃ba₁/₃mno₃: manifestation of nonequilibrium thermodynamics |
| publisher |
Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України |
| publishDate |
2009 |
| topic_facet |
Низкотемпеpатуpный магнетизм |
| url |
http://dspace.nbuv.gov.ua/handle/123456789/118970 |
| citation_txt |
Low-temperature phase segregation in La₂/₃Ba₁/₃MnO₃: Manifestation of nonequilibrium thermodynamics / A.B. Beznosov, E.L. Fertman, V.A. Desnenko, A. Feher,M. Kajòaková, C. Ritter, D. Khalyavin // Физика низких температур. — 2009. — Т. 35, № 6. — С. 571–577. — Бібліогр.: 31 назв. — англ. |
| series |
Физика низких температур |
| work_keys_str_mv |
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2025-07-08T15:00:27Z |
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2025-07-08T15:00:27Z |
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