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1.


   
    THE SEQUENCE OF STRUCTURAL PHASE-TRANSITIONS IN THE 3-LAYER PEROVSKIT-TYPE RB4CD3CL10 / A. F. BOVINA [и др.] // Fiz. Tverd. Tela. - 1990. - Vol. 32, Is. 9. - P. 2677-2683. - Cited References: 18 . - ISSN 0367-3294
РУБ Physics, Condensed Matter
Рубрики:
CRYSTALS
   (CH3NH3)2CDCL4

   RB2CDCL4


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Доп.точки доступа:
BOVINA, A. F.; KOKOV, I. T.; MELNIKOVA, S. V.; MISYUL, S. V.
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2.


    Makarova, I. P.
    X-ray diffraction study of RbLiCrO4 / I. P. Makarova, I. A. Verin, K. S. Aleksandrov // Ferroelectrics. - 1991. - Vol. 124, Is. 1. - P. 91-96, DOI 10.1080/00150199108209420. - Cited References: 12 . - ISSN 0015-0193
РУБ Materials Science, Multidisciplinary + Physics, Condensed Matter
Рубрики:
LITHIUM POTASSIUM-SULFATE
   THERMAL VIBRATIONS

   CRYSTALS

   PROGRAM

   KLISO4

   LIKSO4

Аннотация: Crystal structure of RbLiCrO4 was determined in G3 phase (sp. gr. P31c) at 293, 428, 493, 523 K and in G2 phase (sp. gr. P63) at 553, 583 K applying X-ray diffraction data. The investigated crystals exhibit ‘twinning by merohedry’. The analysis of intensities and influence of anomalous scattering on them allowed us to choose twin elements and atomic configurations of twin domains for all the investigated specimens.

WOS,
Смотреть статью

Доп.точки доступа:
Verin, I. A.; Aleksandrov, K. S.; Александров, Кирилл Сергеевич; European meeting on ferroelectricity(7 ; 1991 ; Jul ; 08-12 ; Dijon, France)
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3.


    ALEKSEEV, K. N.
    CHAOTIC DYNAMICS IN LIGHT IMPURITY CENTER INTERACTION / K. N. ALEKSEEV, N. V. ALEKSEEVA // Phys. Lett. A. - 1992. - Vol. 162, Is. 1. - P. 82-85, DOI 10.1016/0375-9601(92)90965-O. - Cited References: 26 . - ISSN 0375-9601
РУБ Physics, Multidisciplinary
Рубрики:
QUANTUM OPTICS
   CRYSTALS

Аннотация: Interaction of an impurity center in crystal with light and crystal lattice vibrations is considered. Conditions of the transition to Hamiltonian chaos have been obtained for the case of strong and resonant electron-phonon coupling.

WOS,
Scopus
Держатели документа:
Kirensky Institute of Physics, 660036 Krasnoyarsk, Russia, Russian Federation
ИФ СО РАН

Доп.точки доступа:
ALEKSEEVA, N. V.
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4.


    BAGAUTDINOV, B. S.
    X-RAY-INVESTIGATIONS OF MODULATIONS IN CS2ZNI4 / B. S. BAGAUTDINOV, I. P. ALEKSANDROVA // Solid State Commun. - 1994. - Vol. 90, Is. 12. - P. 817-820, DOI 10.1016/0038-1098(94)90251-8. - Cited References: 8 . - ISSN 0038-1098
РУБ Physics, Condensed Matter
Рубрики:
INCOMMENSURATE PHASES
   CRYSTALS

   CS2CDI4

Аннотация: The X-ray diffractometer patterns of a reciprocal space have been analyzed in the modulated phases of Cs2ZnI4 crystals. The character of the atomic displacements in the modulation wave has been established. The temperature behaviour of both a modulation wave vector and amplitude has been determined from the position and intensity of satellite reflections.

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Scopus
Держатели документа:
LV KIRENSKII INST PHYS,660036 KRASNOYARSK,RUSSIA
ИФ СО РАН

Доп.точки доступа:
ALEKSANDROVA, I. P.; Александрова, Инга Петровна
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5.


   
    HEAT-CAPACITY MEASUREMENT OF THE SUCCESSIVE PHASE-TRANSITIONS IN CS2ZNI4 / J. J. MELERO [et al.] // Solid State Commun. - 1995. - Vol. 95, Is. 4. - P. 201-206, DOI 10.1016/0038-1098(95)00261-8. - Cited References: 20 . - ISSN 0038-1098
РУБ Physics, Condensed Matter
Рубрики:
INCOMMENSURATE PHASE
   SEQUENCE

   CRYSTALS

   CS2CDI4

Кл.слова (ненормированные):
FERROELECTRICS -- HEAT CAPACITY -- PHASE TRANSITIONS -- INCOMMENSURATE PHASES
Аннотация: The heat capacity of a Cs2ZnI4 single crystal has been measured by means of AC calorimetry. Three anomalies have been detected corresponding to a normal to inconmensurate phase transition at T-I = 116.9+/-0.1 K, an incommensurate to commensurate lock-in transition at T-L = 107.58+/-0.05 K, and a structural transition from a commensurate orthorhombic to a monoclinic phase at T-C = 93.77+/-0.05 K with thermal hysteresis. The lock-in transition has the peculiarity of being discontinuous but not showing any measurable hysteresis. After comparison with the Landau model predictions for the heat capacity, derived for the k(Delta) = (1/2 + Delta)a* case, it is concluded that Cs2ZnI4 lies close to the Lifschitz point of coexistence of the normal, incommensurate and commensurate phases.

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Scopus
Держатели документа:
RUSSIAN ACAD SCI,LV KIRENSKY PHYS INST,SIBERIAN BRANCH,KRASNOYARSK 660036,RUSSIA
Instituto de Ciencia de Materiales de Aragon. C.S.I.C. - Universidad de Zaragoza, 50009 Zaragoza. Spain.
ИФ СО РАН

Доп.точки доступа:
MELERO, J. J.; BARTOLOME, J.; BURRIEL, R.; ALEKSANDROVA, I. P.; Александрова, Инга Петровна; PRIMAK, S.
}
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6.


    Flerov, I. N.
    Thermodynamic properties and phase-transitions in halide perovskitelike ferroelastics / I. N. Flerov, M. V. Gorev // Izv. Akad. Nauk Ser. Fiz. - 1995. - Vol. 59, Is. 9. - P. 48-53. - Cited References: 28 . - ISSN 1026-3489
РУБ Physics, Multidisciplinary
Рубрики:
HYDROSTATIC-PRESSURE
   CRYSTALS

   RB3CD2CL7

   RBALF4

   CSSCF4


WOS

Доп.точки доступа:
Gorev, M. V.; Горев, Михаил Васильевич; Флёров, Игорь Николаевич
}
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7.


    Patrin, G. S.
    Light-induced transition between states in a bistable regime at nonlinear magnetic resonance in (CH3NH3)(2)CuCl4 / G. S. Patrin, N. V. Volkov // JETP Letters. - 1996. - Vol. 64, Is. 12. - P. 898-902, DOI 10.1134/1.567241. - Cited References: 7 . - ISSN 0021-3640
РУБ Physics, Multidisciplinary
Рубрики:
CRYSTALS
Аннотация: It is found that in (CH3NH3)(2)CuCl4 crystals under nonlinear magnetic resonance conditions in the magnetic-field range in which hysteresis is observed, pulsed laser irradiation induces a transition between different branches of the resonance curve. The effect exhibits a threshold with respect to the optical radiation power. (C) 1996 American Institute of Physics.

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Доп.точки доступа:
Volkov, N. V.; Волков, Никита Валентинович; Патрин, Геннадий Семёнович
}
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8.


   
    T-x phase diagram of solid solutions RbxK1-xLiSO4 / S. V. Melnikova [и др.] // Izv. Akad. Nauk Ser. Fiz. - 1998. - Vol. 62, Is. 8. - P. 1537-1540. - Cited References: 4 . - ISSN 1026-3489
РУБ Physics, Multidisciplinary
Рубрики:
TRANSITIONS
   CRYSTALS


WOS

Доп.точки доступа:
Melnikova, S. V.; Grankina, V. A.; Bandarenko, G. V.; Gorev, M. V.; International Seminar on Physics of Ferroelastics(2 ; 1997 ; Jun 25-27 ; Kazan, Russia)
}
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9.


    Flerov, I. N.
    Calorimetric investigations of phase transitions in the cryolites (NH4)(3)Ga1-xScxF6 (x = 1.0, 0.1, 0) / I. N. Flerov, M. V. Gorev, T. V. Ushakova // Phys. Solid State. - 1999. - Vol. 41, Is. 3. - P. 468-473, DOI 10.1134/1.1130805. - Cited References: 19 . - ISSN 1063-7834
РУБ Physics, Condensed Matter
Рубрики:
FERROELASTICS
   ELPASOLITES

   CRYSTALS

   PRESSURE

Аннотация: The specific heat of the cryolites (NH4)(3)Ga1-xScxF6 with x=1.0, 0.1, and 0 was measured. The thermodynamic parameters of the phase transitions were determined. A previously unknown phase transition was found in the scandium compound at T=243 K. (C) 1999 American Institute of Physics. [S1063-7834(99)03003-8].

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Публикация на русском языке Флеров, Игорь Николаевич. Калориметрические исследования фазовых переходов в криолитах (NH4)3Ga1-xScxF6 (x=1.0, 0.1, 0) [Текст] / И. Н. Флеров, М. В. Горев, Т. В. Ушакова // Физ. тверд. тела. - Санкт-Петербург, 1999. - Т. 41 Вып. 3. - С. 523-528

Держатели документа:
Russian Acad Sci, LV Kirensky Phys Inst, Siberian Branch, Krasnoyarsk 660036, Russia
ИФ СО РАН

Доп.точки доступа:
Gorev, M. V.; Горев, Михаил Васильевич; Ushakova, T. V.; Флёров, Игорь Николаевич
}
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10.


    Gorev, M. V.
    Thermodynamic properties and p-T phase diagrams of (NH4)(3)M3+F6 cryolites (M3+: Ga, Sc) / M. V. Gorev, I. N. Flerov, A. . Tressaud // J. Phys.: Condens. Matter. - 1999. - Vol. 11, Is. 39. - P. 7493-7500, DOI 10.1088/0953-8984/11/39/306. - Cited References: 19 . - ISSN 0953-8984
РУБ Physics, Condensed Matter
Рубрики:
TRANSITIONS
   CRYSTALS

Аннотация: Calorimetric and high pressure experiments are used to establish thermodynamic features of (NH4)(3)M3+F6 cryolites with M3+: Ga, Sc as they undergo one and three structural phase transitions, respectively. The heat capacity measurements performed between 80 K and 370 K, using an adiabatic calorimeter, have shown that all phase transitions under study are first order with different closeness to the tricritical point. The total entropy change in the Sc compound connected with the successive transformations is almost equal to the entropy change in the Ga cryolite. The effect of hydrostatic pressure has been studied up to 0.6 GPa, using differential thermographic analysis. The p-T phase diagrams of both cryolites were found to be rather complicated, including triple points. The experimental results are considered as connected with order-disorder phase transitions.

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Держатели документа:
LV Kirensky Phys Inst, Krasnoyarsk 660036, Russia
Univ Bordeaux 1, CNRS, Inst Chim Mat Condensee, F-33608 Pessac, France
ИФ СО РАН
L V Kirensky Institute of Physics, 660036 Krasnoyarsk, Russian Federation
Inst. Chim. Matiere Cond. Bordeaux, CNRS, Universite Bordeaux I, 33608 Pessac Cedex, France

Доп.точки доступа:
Flerov, I. N.; Флёров, Игорь Николаевич; Tressaud, A.; Горев, Михаил Васильевич
}
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