Low-temperature phase segregation in La₂/₃Ba₁/₃MnO₃: Manifestation of nonequilibrium thermodynamics
Vernadsky National Library of Ukraine
Переглянути архів Інформація| Поле | Співвідношення | |
| Title |
Low-temperature phase segregation in La₂/₃Ba₁/₃MnO₃: Manifestation of nonequilibrium thermodynamics
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| Creator |
Beznosov, A.B.
Fertman, E.L. Desnenko, V.A. Feher, A. Kajòaková, M. Ritter, C. Khalyavin, D. |
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| Subject |
Низкотемпеpатуpный магнетизм
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| 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. |
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| Date |
2017-06-02T11:30:05Z
2017-06-02T11:30:05Z 2009 |
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| Type |
Article
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| Identifier |
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 |
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| Language |
en
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| Relation |
Физика низких температур
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| Publisher |
Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України
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