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1.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Rashchenko, Sergey V., Likhacheva A. Y., Goryainov S. V., Krylov A. S., Litasov, Konstantin D.
Заглавие : In situ spectroscopic study of water intercalation into talc: New features of 10 Å phase formation
Коллективы : Russian Foundation for Basic Research [13-05-00185, 14-05-00616]; Russian Ministry of Education and Science [14.B25.31.0032]; Russian Science Foundation [14-13-00834]
Место публикации : Am. Miner. - 2016. - Vol. 100, Is. 1-2. - P.431-436. - ISSN 0003-004X, DOI 10.2138/am-2016-5356. - ISSN 1945-3027(eISSN)
Примечания : Cited References:32. - This research was supported by Russian Foundation for Basic Research [grants 13-05-00185 and 14-05-00616]. A partial support from Russian Ministry of Education and Science [grant 14.B25.31.0032] and Russian Science Foundation [grant 14-13-00834] is acknowledged. We also acknowledge Mark D. Welch and an anonymous reviewer for a helpful revision of the manuscript.
Предметные рубрики: SYSTEM MgO-SiO2-H2O
SUBDUCTION ZONES
10-ANGSTROM PHASE
HIGH-PRESSURES
H2O CONTENT
HP-HT
MANTLE
STABILITY
TEMPERATURES
GPA
Ключевые слова (''Своб.индексиров.''): 10 angstrom phase--talc--water transport--subduction
Аннотация: The synthesis of 10 angstrom phase via the reaction of talc plus water at 8 GPa and 500 degrees C was studied by in situ Raman spectroscopy using a diamond-anvil cell. The initial fast (2 h) incorporation of interlayer H2O molecules into the talc structure is traced by gradual growth of new OH stretching bands at 3592 and 3621 cm(-1) and the shift of several framework bands. Further monitoring at HP-HT conditions over 7 h reveals gradual weakening of the 3592 cm(-1) band, which can probably be related to the onset of the formation of "long-run" 10 angstrom phase through the appearance of silanol groups following the model proposed by Pawley et al. (2010), influencing the interlayer hydrogen bonding.
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2.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Kagan M. Y., Efremov D. V., Marienko M. S., Val'kov V. V.
Заглавие : Triplet p-Wave Superconductivity in the Low-Density Extended Hubbard Model with Coulomb Repulsion
Разночтения заглавия :авие SCOPUS: Triplet p-wave superconductivity in the low-density extended hubbard model with Coulomb repulsion
Место публикации : JETP Letters. - 2011. - Vol. 93, Is. 12. - P.725-730. - ISSN 0021-3640, DOI 10.1134/S0021364011120083
Примечания : Cited References: 42. - We acknowledge useful with A. V. Chubukov, A.S. Alexandrov, I.A. Fomin, K.I. Kugel, and V. V. Kabanov for stimulating discussions. This work was supported by the Russian Foundation for Basic Research (project nos. 11-02-00708 and 11-02-00741). M.S.M acknowledges the support of the US Department of Energy (award no. DE-FG02-08ER64623, Hofstra University Center for Condensed Matter).
Предметные рубрики: T-J MODEL
FERMI GAS
SUPERFLUID TRANSITION
PHASE-SEPARATION
SYSTEMS
TEMPERATURES
BEHAVIOR
LIQUID
POINT
STATE
Аннотация: We analyze superconducting instabilities in 3D and 2D extended Hubbard model with Coulomb repulsion between electrons on neighboring sites in the limit of low electron density (n(el) - 0) on simple cubic (square) lattice. We show that in a realistic strong-coupling case U V W (U and V are the onsite and the intersite Coulomb repulsions, respectively, and W the bandwidth) the main SC instability corresponds to the p-wave pairing and in the leading order is correctly described by the equations obtained earlier in the absence of the intersite Coulomb interaction V = 0.
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