Библиотека института физики им. Л.В. Киренского СО РАН

Главная

Базы данных

Труды сотрудников ИФ СО РАН - результаты поиска

Вид поиска

Каталог книг и брошюр библиотеки ИФ СО РАН

Каталог журналов библиотеки ИФ СО РАН

Труды сотрудников ИФ СО РАН

Область поиска

Формат представления найденных документов:
полный	информационный	краткий

Отсортировать найденные документы по:
автору	заглавию	году издания	типу документа

Поисковый запрос: (<.>S=COMPOUND<.>)

Общее количество найденных документов : 3
Показаны документы с 1 по 3

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Aver'yanov E. M.
Заглавие : Structural and thermodynamic consequencies of the interaction of conformational degrees of freedom of azomethines in the nematic phase
Место публикации : J. Struct. Chem.: Springer, 2014. - Vol. 55, Is. 4. - P.605-611. - ISSN 0022-4766, DOI 10.1134/S0022476614040039. - ISSN 1573-8779
Примечания : Cited References: 21
Предметные рубрики: CONJUGATED POLY(AZOMETHINE)S
TERMINAL SUBSTITUENTS
ELECTRONIC-STRUCTURES
FLUORINATED ANALOGS
INTERNAL-ROTATION
MOLECULES
COMPOUND
ANGLES
STATE
NMR
Ключевые слова (''Своб.индексиров.''): azomethines--benzylideneaniline--conformation--steric effects of substituents--nematic-isotropic liquid transition--conformational polymorphism
Аннотация: The interaction of the conformational degrees of freedom of azomethines in the nematic phase, which is induced by electronic donor-acceptor properties of the terminal substituents of the benzylideneaniline core is studied. These degrees of freedom related to the rotation angles phi (k) around the bonds between the substituent and the aniline ring (phi(1)) and also between the CH=N bridge and the aniline ring (omega(2)) are characterized by the parameters Q (k) = aOE (c) cos(2)phi (k) . It is found that the interaction of these degrees of freedom is manifested in the linear dependence Q (2)(Q (1)). Within the phenomenological theory the effect of this interaction on changes delta (k) in the Q (k) values during the nematic liquid crystal-isotropic liquid phase transition is revealed along with the temperature T (NI) and character of this transition. The derivation of previously established empirical dependences T (NI)(Q (k) ) is presented in the presence of direct and indirect steric effects of side substituents affecting the Q (k) values. A diverse combination of delta (k) signs in the nematic phase, which is a prerequisite for the conformational polymorphism of the nematic phases of azomethines, is shown.
Смотреть статью,
Scopus,
WOS,
Читать в сети ИФ
Найти похожие

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Myagkov V. G., Bykova L. E., Yakovchuk V. Yu., Zhigalov V. S., Volochaev M. N., Matsynin A. A., Tambasov I. A., Seredkin V. A., Patrin G. S., Bondarenko G. N.
Заглавие : Structural and magnetic features of solid-phase transformations in Mn/Bi and Bi/Mn films
Место публикации : JETP Letters. - 2016. - Vol. 103, Is. 4. - P.254-259. - ISSN 00213640 (ISSN), DOI 10.1134/S0021364016040111
Примечания : Cited References: 47. - This work was supported by the Russian Foundation for Basic Research (project nos. 15-02-00948 and 16-03-00069), by the Council of the President of the Russian Federation for Support of Young Scientists and Leading Scientific Schools (project no. SP-317.2015.1), and by the Foundation for Promotion of the Development of Small Scientific and Engineering Enterprises (project nos. 0011727 and 6662GU2015, program Umnik). The electron microscopy studies were performed on the equipment of the Shared Usage Center, Krasnoyarsk Research Center, Siberian Branch, Russian Academy of Sciences.
Предметные рубрики: High-temperature synthesis
Epitaxial thin-films
State synthesis
Martensitic transformations
Vacuum depositions
MnBi filmsd
Bi
System
Anisotropy
Compound
Аннотация: Solid-phase transformations at different annealing temperatures in Mn/Bi (Mn on Bi) and Bi/Mn (Bi on Mn) films have been studied using X-ray diffraction, electron microscopy, and magnetic measurements. It has been shown that the synthesis of the α-MnBi phase in polycrystalline Mn/Bi films begins at a temperature of ~120°C and the Mn and Bi layers react completely at 300°C. The resulting α-MnBi(001) samples have a large perpendicular magnetic anisotropy (Ku ≃ 1.5 × 107 erg/cm3) and a coercive force H HC ~ 3 kOe. In contrast to Mn/Bi, the ferromagnetic α-MnBi phase in Bi/Mn films is not formed even at annealing processes up to 400°C and Mn clusters are formed in a Bi melt. This asymmetry in phase transformations occurs because chemosorbed oxygen existing on the surface of the Mn film in Bi/Mn films suppresses a solid-phase reaction between Mn and Bi. The analysis of the results obtained implies the existence of new low-temperature (~120°C) structural transformation in the Mn–Bi system. © 2016, Pleiades Publishing, Inc.
Смотреть статью,
Scopus,
WOS,
Читать в сети ИФ
Найти похожие

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Drokina T. V., Petrakovskii G. A., Bayukov O. A., Molokeev M. S., Bartolome J., Arauzo A.
Заглавие : Role of Fe magnetic subsystems to form a magnetic spin glass state in RFeTi2O7
Коллективы : Euro-Asian Symposium "Trends in MAGnetism", "Trends in MAGnetism", Euro-Asian Symposium, Институт физики им. Л.В. Киренского Сибирского отделения РАН , project MECOM [MAT2014-53921-R]; project DGA [IMANA E34]
Место публикации : J. Magn. Magn. Mater.: Elsevier Science, 2017. - Vol. 440. - P.41-43. - ISSN 0304-8853, DOI 10.1016/j.jmmm.2016.12.088. - ISSN 1873-4766(eISSN)
Примечания : Cited References:6. - This work has been partially financed by projects MECOM (MAT2014-53921-R) and DGA (IMANA E34)
Предметные рубрики: COMPOUND
Ключевые слова (''Своб.индексиров.''): oxide materials--solid state reaction--cation substitution--spin glasses
Аннотация: The experimental studies on R3+Fe3+Ti2O7 (R=Sm, Gd, Tb, Tm, Dy) magnetic properties evidence the low temperature spin glass state in all compounds. The possibility of rare-earth cation substitution allows the investigation of the role of magnetic iron Fe3+ ions and rare earth R3+ ions subsystems in a ground state formation in these oxide compounds.
Смотреть статью,
WOS,
Читать в сети ИФ
Найти похожие