Главная
Авторизация
Фамилия
Пароль
Регистрация
Библиотека института физики им. Л.В. Киренского СО РАН
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
Ключевые слова
Автор
Заглавие
Год издания
Место работы автора
в найденном
Формат представления найденных документов:
полный
информационный
краткий
Отсортировать найденные документы по:
автору
заглавию
году издания
типу документа
Поисковый запрос:
(<.>S=Phase-diagram<.>)
Общее количество найденных документов
:
5
Показаны документы
с 1 по 5
1.
MAGNETIC-PROPERTIES OF THE
VXMN1-XS SYSTEM / G. A. PETRAKOVSKII [и др.]> // Fiz. Tverd. Tela. - 1993. -
Vol. 35
,
Is. 8
. - P. 2225-2230. - Cited References: 7 . - ISSN 0367-3294
РУБ
Physics, Condensed Matter
Рубрики:
PHASE
-
DIAGRAM
WOS
Доп.точки доступа:
PETRAKOVSKII, G. A.; APLESNIN, S. S.; LOSEVA, G. V.; RYABINKINA, L. I.; YANUSHKEVICH, K. I.; BARANOV, A. V.
}
Найти похожие
2.
Is There Any
Hidden Symmetry in the Stripe Structure of Perovskite High-Temperature Superconductors? / V. A. Gavrichkov [et al.]> // J. Phys. Chem. Lett. - 2019. -
Vol. 10
,
Is. 8
. - P. 1840-1844,
DOI
10.1021/acs.jpclett.9b00513. - Cited References: 68. - One of the authors (V.A.G.) is grateful to RFBR, the Government of the Krasnoyarsk Region and Krasnoyarsk Regional Fund of Science for the research Grant No. 18-42-240017 . - ISSN 1948-7185
РУБ
Chemistry, Physical + Nanoscience & Nanotechnology + Materials Science, Multidisciplinary + Physics, Atomic, Molecular & Chemical
Рубрики:
T-C
CUO2 PLANE
INHOMOGENEOUS SUPERCONDUCTIVITY
PHASE
-
DIAGRAM
Аннотация:
Local and fast structural probes using synchrotron radiation have shown nanoscale striped puddles and nanoscale
phase
separation in doped perovskites. It is known that the striped phases in doped perovskites are due to competing interactions involving charge, spin, and lattice degrees of freedom. In this work, we show that two different stripes can be represented as a superposition of a pair of stripes, U(θn) or D(θn), characterized by perovskite tilts where one of the pair is rotated in relation to the other partner by an angle Δθn = π/2. The spatial distribution of the U and D stripes is reduced to all possible maps in the well-known mathematical four-color theorem. Both the periodic striped puddles and random structures can be represented by using planar graphs with a chromatic number χ ≤ 4. To observe the colors in mapping experiments, it is necessary to recover variously oriented tilting effects from the replica. It is established that there is an interplay between the annihilation/creation of new stripes and ordering/disordering tilts in relation to the θn angle in the CuO2 plane, where the characteristic shape of the stripes coincides with the tilting-ordered regions.
Смотреть статью
,
Scopus
,
WOS
,
Читать в сети ИФ
Держатели документа:
Russian Acad Sci, Kirensky Inst Phys, KSC Siberian Branch, Fed Res Ctr, Krasnoyarsk 660036, Russia.
Russian Acad Sci, Siberian Branch, Inst Computat Modeling, Krasnoyarsk 660036, Russia.
Rome Int Ctr Mat Sci Superstripes RICMASS, Via Sabelli 119A, I-00185 Rome, Italy.
CNR, Inst Cristallog, I-00015 Monterotondo, Italy.
Natl Res Nucl Univ MEPhI, Moscow Engn Phys Inst, Moscow 115409, Russia.
Доп.точки доступа:
Gavrichkov, V. A.; Гавричков, Владимир Александрович; Shan'ko, Yury; Zamkova, N. G.; Замкова, Наталья Геннадьевна; Bianconi, A.; RFBR [18-42-240017]; Government of the Krasnoyarsk Region [18-42-240017]; Krasnoyarsk Regional Fund of Science [18-42-240017]
}
Найти похожие
3.
Electronic transitions and
genuine crystal-field parameters in copper metaborate CuB2O4 / R. V. Pisarev [et al.]> // Phys. Rev. B. - 2011. -
Vol. 84
,
Is. 7
. - Ст. 75160,
DOI
10.1103/PhysRevB.84.075160. - Cited References: 65. - Useful discussions with W. Weber on crystal-field splitting of 3d states in cuprates are appreciated. We thank H.-J. Weber for the help in using Cary 2300 spectrophotometer. This work is supported by the Russian Foundation for Basic Research (project No. 09-02-00070) and Federal Agency for Science and Innovations (Grant No. 02.740.11.0384). A. M. K. acknowledges the financial support from the Committee for Science and Higher Education of the Government of Saint Petersburg. . - ISSN 1098-0121
РУБ
Physics, Condensed Matter
Рубрики:
OPTICAL-ABSORPTION
PHASE
-
DIAGRAM
CUGEO3
SPECTRUM
SUPERCONDUCTORS
EXCITATIONS
SR2CUO2CL2
SCATTERING
LA2CUO4
CUPRATE
Аннотация:
We present and analyze high-resolution alpha-, sigma-, and pi-polarized absorption spectra related to d-d electronic transitions in tetragonal metaborate CuB2O4 where copper Cu2+ ions occupy two crystallographically distinct 4b and 8d positions. The spectra are characterized by exceptionally rich fine structure in the spectral range of 1.4-2.4 eV. Six zero-phonon (ZP) lines originating from the electronic transitions within the Cu2+ ions in both positions are distinguished and identified. Symmetry analysis explains polarization properties of the ZP lines in the 8d positions but only partially explains them in the 4b positions. Reliable assignment of all six ZP lines to specific transitions allowed us to calculate genuine cubic Dq and tetragonal Ds and Dt crystal-field parameters for both positions. We show that the (3r(2) - z(2)) state, the energy of which is the measure of the Jahn-Teller splitting, is the highest 3d state for both types of Cu2+ ion positions. Using the obtained crystal-field parameters as the reference values, we estimated Dq, Ds, and Dt for several other cuprates with different Cu-O bond lengths. In particular, the 3d level splitting in La2CuO4, Nd2CuO4, CuGeO3, Sr2CuO2Cl2, and Cu3B7O13Cl was analyzed. Our estimates suggest that the Jahn-Teller splitting in some of these cuprates is larger than it was assumed previously.
WOS
,
Scopus
,
Читать в сети ИФ
Держатели документа:
[Pisarev, R. V.
Kalashnikova, A. M.] Russian Acad Sci, AF Ioffe Phys Tech Inst, St Petersburg 194021, Russia
[Schoeps, O.] Dortmund Tech Univ, Inst Phys, D-44221 Dortmund, Germany
[Bezmaternykh, L. N.] Russian Acad Sci, Siberian Branch, Inst Phys, Krasnoyarsk 660036, Russia
ИФ СО РАН
Ioffe Physical-Technical Institute, Russian Academy of Sciences, 194021 St. Petersburg, Russian Federation
Institute of Physics, Dortmund Technical University, 44221 Dortmund, Germany
Institute of Physics, Siberian Branch, Russian Academy of Sciences, 660036 Krasnoyarsk, Russian Federation
Доп.точки доступа:
Pisarev, R. V.; Kalashnikova, A. M.; Schops, O.; Bezmaternykh, L. N.; Безматерных, Леонард Николаевич
}
Найти похожие
4.
The Kohn-Luttinger effect
and anomalous pairing in new superconducting systems and graphene / M. Y. Kagan [et al.]> // J. Exp. Theor. Phys. - 2014. -
Vol. 118
,
Is. 6
. - P. 995-1011,
DOI
10.1134/S1063776114060132. - Cited References: 114. - This study was supported by the Program of the Physics Department of the Russian Academy of Sciences (project no. P.3.1) and the Russian Foundation for Basic Research (project nos. 14-02-00058 and 14-02-31237). The work of two coauthors (M. M. K. and V.A.M) was supported financially by grant no. MK-526.2013.2 of the President of the Russian Federation and the Dynasty Foundation. . - ISSN 1063-7761. - ISSN 1090-6509
РУБ
Physics, Multidisciplinary
Рубрики:
P-WAVE SUPERCONDUCTIVITY
EXTENDED HUBBARD-MODEL
NARROW ENERGY-BANDS
2D KONDO-LATTICE
FERMI GAS
REPULSIVE INTERACTIONS
ELECTRON CORRELATIONS
COOPER INSTABILITY
PHASE
-
DIAGRAM
SPECTRUM
Аннотация:
We present a review of theoretical investigations into the Kohn-Luttinger nonphonon superconductivity mechanism in various 3D and 2D repulsive electron systems described by the Fermi-gas, Hubbard, and Shubin-Vonsovsky models.
Phase
diagrams of the superconducting state are considered, including regions of anomalous s-, p-, and d-wave pairing. The possibility of a strong increase in the superconducting transition temperature T c even for a low electron density is demonstrated by analyzing the spin-polarized case or the two-band situation. The Kohn-Luttinger theory explains or predicts superconductivity in various materials such as heterostructures and semimetals, superlattices and dichalcogenides, high-T c superconductors and heavy-fermion systems, layered organic superconductors, and ultracold Fermi gases in magnetic traps. This theory also describes the anomalous electron transport and peculiar polaron effects in the normal state of these systems. The theory can be useful for explaining the origin of superconductivity and orbital currents (chiral anomaly) in systems with the Dirac spectrum of electrons, including superfluid 3He-A, doped graphene, and topological superconductors.
Смотреть статью
,
Scopus
,
WoS
,
Читать в сети ИФ
Публикация на русском языке
Эффект Кона-Латтинжера и аномальное спаривание в новых сверхпроводящих системах и графене [Текст] / М. Ю. Каган [и др.] // Журн. эксперим. и теор. физ. : Наука, 2014. - Т. 118 Вып. 6. - С. 1127-1146
Держатели документа:
Russian Acad Sci, Kapitza Inst Phys Problems, Moscow 119334, Russia
Natl Res Univ, Higher Sch Econ, Moscow State Inst Elect & Math, Moscow 109028, Russia
Russian Acad Sci, LV Kirensky Phys Inst, Siberian Branch, Krasnoyarsk 660036, Russia
Reshetnev Siberian State Aerosp Univ, Krasnoyarsk 660014, Russia
Доп.точки доступа:
Kagan, M. Y.; Val'kov, V. V.; Вальков, Валерий Владимирович; Mitskan, V. A.; Мицкан, Виталий Александрович; Korovushkin, M. M.; Коровушкин, Максим Михайлович; Physics Department of the Russian Academy of Sciences [P.3.1]; Russian Foundation for Basic Research [14-02-00058, 14-02-31237]; Russian Federation [MK-526.2013.2]; Dynasty Foundation
}
Найти похожие
5.
Kagan, M. Y.
High-Tc and Low-Tc superconductivity in electron systems with repulsion / M. Y. Kagan, V. A. Mitskan, M. M. Korovushkin> // J. Supercond. Nov. Magn. - 2016. -
Vol. 29
,
Is. 4
. - P. 1043-1048,
DOI
10.1007/s10948-016-3384-7. - Cited References:31. - The authors are grateful to V. V. Val'kov, I. S. Burmistrov, M. V. Feigel'man, and A. Ya. Tzalenchuk for valuable remarks. This work is supported by the Russian Foundation for Basic Research (nos. 14-02-00058 and 14-02-31237). One of the authors (M. Yu. K.) gratefully acknowledges support from the Basic Research Program of the National Research University Higher School of Economics. Another one (M. M. K.) thanks the scholarship SP-1361.2015.1 of the President of Russia and the Dynasty foundation. . - ISSN 1557-1939. - ISSN 1557-1947
РУБ
Physics, Applied + Physics, Condensed Matter
Рубрики:
Fermion systems
Doped graphene
Hubbard-model
Phase
-
diagram
Superfluidity
Density
Кл.слова (ненормированные):
Unconventional superconductivity
--
Kohn-Luttinger mechanism
--
Graphene
Аннотация:
We demonstrate the instability of the normal state of purely repulsive fermionic systems towards the transition to the Kohn-Luttinger superconducting state. We construct the superconducting
phase
diagrams of these systems in the framework of the Hubbard and Shubin-Vonsovsky models on the square and hexagonal lattices. We show that an account for the long-range Coulomb interactions, as well as the Kohn- Luttinger renormalizations, lead to an increase in the critical superconducting temperatures in various materials, such as high-temperature superconductors, idealized monolayer, and bilayer of doped graphene. Additionally, we discuss the role of the structural disorder and the nonmagnetic impurities in superconducting properties of real graphene systems.
Смотреть статью
,
WOS
,
Читать в сети ИФ
Держатели документа:
PL Kapitsa Phys Problems Inst, Moscow 119334, Russia.
Natl Res Univ, Higher Sch Econ, Moscow 109028, Russia.
SB RAS, LV Kirensky Phys Inst, Krasnoyarsk 660036, Russia.
Siberian State Aerosp Univ, Krasnoyarsk 660014, Russia.
KTH Royal Inst Technol, NORDITA, Roslagstullsbacken 23, SE-10691 Stockholm, Sweden.
Stockholm Univ, Roslagstullsbacken 23, SE-10691 Stockholm, Sweden.
Доп.точки доступа:
Mitskan, V. A.; Мицкан, Виталий Александрович; Korovushkin, M. M.; Коровушкин, Максим Михайлович; Russian Foundation for Basic Research [14-02-00058, 14-02-31237]; Basic Research Program of the National Research University Higher School of Economics; Dynasty foundation; [SP-1361.2015.1]
}
Найти похожие
полный формат
краткий формат
все найденные
отмеченные
кроме отмеченных
Стандартный
Расширенный
Профессиональный
Распределенный
По словарю
ГРНТИ-навигатор
УДК-навигатор
Тематический навигатор
Другие библиотеки
Центральная Научная Библиотека КНЦ СО РАН
Библиотека института биофизики
Библиотека института химии и химический технологии
Библиотека института вычислительного моделирования
Библиотека института леса
Библиотека СФУ
Краевая научная библиотека
© Международная Ассоциация пользователей и разработчиков электронных библиотек и новых информационных технологий
(Ассоциация ЭБНИТ)