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    Earth surface subsidence in the kuznetsk coal basin caused by manmade and natural seismic activity according to ALOS PALSAR interferometry / A. I. Zakharov [et al.] // IEEE J. Sel. Top. Appl. Earth Observ. Remote Sens. - 2013. - Vol. 6, Is. 3. - P. 1578-1583, DOI 10.1109/JSTARS.2013.2259220. - Cited References: 14 . - ISSN 1939-1404
   Перевод заглавия: Деформации земной поверхности в Кузнецком угольном бассейне, вызванные деятельностью человека и природной сейсмической активностью согласно данным интерферометрии

РУБ Geography, Physical + Remote Sensing + Imaging Science & Photographic Technology
Рубрики:
RADAR INTERFEROMETRY
   DEFORMATION
   DINSAR
   INSAR
Кл.слова (ненормированные):
Coal mine -- land surface subsidence -- seismic measurements -- spaceborne radar interferometry
Аннотация: This paper presents results of a spaceborne radar interferometry technique application for land subsidence observations in a coal mining area in Kuzbass, Russia. Joint analysis of radar interferometry measurements with simultaneous seismic observations shows that the land subsidence is triggered by seismic events, both natural and caused by human underground activity. Surface displacements are linked typically to the boundaries of block structures and correlate with the location of clusters of seismic events.

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Держатели документа:
RAS, Kotelnikov Inst Radioengn & Elect, Fryazino 141120, Russia
SB RAS, AA Trofimuk Inst Petr Geol & Geophys, Novosibirsk 630090, Russia
SB RAS, LV Kirensky Phys Inst, Krasnoyarsk 660036, Russia
SB RAS, Inst Phys Mat Sci, Ulan Ude 670047, Russia
SB RAS, Geophys Survey, Novosibirsk 670047, Russia
RAS, Kotelnikov Inst Radioengn & Elect, Moscow 125009, Russia

Доп.точки доступа:
Zakharov, A. I.; Epov, M. I.; Mironov, V. L.; Миронов, Валерий Леонидович; Chymitdorzhiev, T. N.; Seleznev, V. S.; Emanov, A. F.; Bykov, M. E.; Cherepenin, V. A.
}
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Synthesis, structural, magnetic, and electronic properties of cubic CsMnMoO3F3 oxyfluoride / V. V. Atuchin [et al.] // J. Phys. Chem. C. - 2012. - Vol. 116, Is. 18. - P. 10162-10170, DOI 10.1021/jp302020f. - Cited References: 64. - We thank Dr. A.M. Ziatdinov for the electron paramagnetic resonance measurements. This study was partly supported by SB RAS (Grant 28). . - ISSN 1932-7447

РУБ Chemistry, Physical + Nanoscience & Nanotechnology + Materials Science, Multidisciplinary
Рубрики:
RAY PHOTOELECTRON-SPECTROSCOPY
   PHASE-TRANSITIONS
   CORE LEVELS
   SURFACE CHARACTERIZATION
   CRYSTAL-STRUCTURE
   CLEAVED SURFACE
   MIXED-VALENCE
   OXIDES
   MN
   MOLYBDENUM
   Chemical bondings
   Cubic phase
   Energy differences
   Heat capacity measurements
   Oxyfluorides
   Powder samples
   Solid-state synthesis
   Space Groups
   Temperature range
   Valence electron
   Binding energy
   Chemical bonds
   Electronic structure
   Fluorine compounds
   Magnetic properties
   Metal ions
   Photoelectrons
   Rietveld method
   X ray photoelectron spectroscopy
   Electronic properties
Аннотация: A powder sample of CsMnMoO3F3 oxyfluoride has been prepared by solid state synthesis. The pyrochlore-related crystal structure of CsMnMoO3F3 has been refined by the Rietveld method at T = 298 K (space group Fd-3m, a = 10.59141(4) angstrom, V = 1188.123(8) angstrom(3); R-B = 3.44%). The stability of the cubic phase has been obtained over the temperature range T = 110-293 K by heat capacity measurements. Magnetic properties have been measured over the range of T = 2-300 K. The electronic structure of CsMnMoO3F3 has been evaluated by X-ray photoelectron spectroscopy. Chemical bonding effects have been discussed for all metal ions using binding energy difference parameters and wide comparison with related oxides and fluorides. The competition between O-2(-) and F- ions for metal valence electrons has been found.

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Держатели документа:
Atuchin, Victor V.
Gavrilova, Tatyana A.
Kesler, Valery G.] SB RAS, Inst Semicond Phys, Novosibirsk 630090, Russia
Molokeev, Maxim S.
Yurkin, Gleb Yu.
Flerov, Igor N.
Patrin, Gennadii S.] SB RAS, Inst Phys, Krasnoyarsk 660036, Russia
Laptash, Natalia M.] FEB RAS, Inst Chem, Vladivostok 690022, Russia
Flerov, Igor N.
Patrin, Gennadii S.] Siberian Fed Univ, Inst Engn Phys & Radio Elect, Krasnoyarsk 660074, Russia

Доп.точки доступа:
Atuchin, V. V.; Molokeev, M. S.; Молокеев, Максим Сергеевич; Yurkin, G. Yu.; Юркин, Глеб Юрьевич; Gavrilova, T. A.; Kesler, V. G.; Laptash, N. M.; Flerov, I. N.; Флёров, Игорь Николаевич; Patrin, G. S.; Патрин, Геннадий Семёнович
}
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    Фомин, Сергей Викторович.
    Восстановление засоленности влажных почв с использованием диэлектрических измерений в диапазоне частот от 0,2 до 14,8 ГГц / С. В. Фомин, А. Ю. Каравайский // Решетневские чтения : матер. XVI Междунар. науч. конф. : в 2 ч. - Красноярск, 2012. - Ч. 1. - С. 223-224 . - ISBN 1990-7702
   Перевод заглавия: Restoring a salinity wet soil using dielectric measurements in the frequency range from 0.2 ghz to 14.8 ghz
Аннотация: Предложена методика восстановления засоленности естественных почв из их диэлектрических спектров. Методика основывается на недавно предложенной многорелаксационной обобщенной рефракционной диэлектрической модели для частотных спектров влажных почв (ОРДМВП). Точность восстановления засоленности влажных почв оценивается по статистической погрешности расчетов восстанавливаемых спектров комплексной диэлектрической проницаемости через коэффициент Пирсона r и стандартное отклонение s.

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Держатели документа:
Институт физики им. Л.В. Киренского СО РАН

Доп.точки доступа:
Каравайский, Андрей Юрьевич; Karavaisky, A. Yu.; Fomin S.V.; "Решетневские чтения", международная научная конференция (16 ; 2012 ; нояб. ; 7-9 ; Красноярск)
}
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Lattice dynamics of oxyfluoride Rb2KMoO3F3 / A. S. Krylov [et al.] // Ferroelectrics. - 2012. - Vol. 441. - P. 52-60, DOI 10.1080/00150193.2012.743791. - Cited References: 23 . - ISSN 0015-0193

РУБ Materials Science, Multidisciplinary + Physics, Condensed Matter
Рубрики:
PHASE-TRANSITIONS
   RAMAN-SCATTERING
   ELPASOLITE
   CRYSTALS
   DISORDER
   SPECTRA
   CS
Кл.слова (ненормированные):
Oxyfluorides -- lattice dynamics -- Ramam measurements
Аннотация: The complete Raman spectra of oxyfluoride Rb2KMoO 3F3 were obtained. At T ≈ 185 K phase transitions were found. Lattice dynamics of disordered structures of the investigated compound was simulated, and "soft" vibrational modes were found in the calculated spectrum. Copyright © Taylor & Francis Group, LLC.

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Доп.точки доступа:
Krylov, A. S.; Крылов, Александр Сергеевич; Sofronova, S. N.; Софронова, Светлана Николаевна; Kolesnikova, E. M.; Колесникова, Евгения Михайловна; Vtyurin, A. N.; Втюрин, Александр Николаевич; Isaenko, L. I.; International Symposium on Ferroic Domains and Micro- to Nanoscopic Structures(11th ; 20-24 Aug. 2012 ; Ekaterinburg, Russia); Russia/CIS/Baltic/Japan Symposium on Ferroelectricity(11 ; 2012 ; Aug. ; 20-24 ; Ekaterinburg)
}
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Magnetic structure of iron borate DyFe3(BO3)4: A neutron diffraction study / C. Ritter [et al.] // J. Phys.: Conf. Ser. - 2012. - Vol. 340. - Ст. 012065, DOI 10.1088/1742-6596/340/1/012065. - Cited References: 22 . - ISSN 1742-6588

РУБ Physics, Condensed Matter + Physics, Particles & Fields

Кл.слова (ненормированные):
Antiferromagnetics -- Crystallographic structure -- Easy-axis anisotropy -- Iron borate -- Kramers doublet -- Low temperatures -- Magnetic propagation -- Neutron diffraction measurements -- Repopulation -- Room temperature -- Spin reorientation -- Sub-lattices -- Thermal dependences -- Unit cells
Аннотация: Neutron diffraction measurements were performed on the iron borate DyFe3(BO3)4 to investigate details of the crystallographic structure, the low temperature magnetic structure and its magnetic properties. DyFe3(BO3)4 adopts at room temperature the P3121 symmetry and becomes antiferromagnetic below TN = 39 K. Both, the rare earth and the iron sublattice, follow the same magnetic propagation vector τ = [0, 0, ½] which leads to a doubling of the crystallographic unit cell in the c-direction. The easy axis anisotropy of the rare earth determines the moment orientation to be mainly along c. No spin reorientation is found between TN and 1.5 K, however, a small anomaly in the thermal dependence of the unit cell a-parameter is found at about 27 K which could be connected to repopulation of low lying Kramers doublets of Dy3+. The magnetic moment value of the Fe-moment is at 1.5 K with μFe = 4.5 μB only slightly smaller than expected for an S = 5/2 ion while the Dy moment is strongly reduced and amounts only to μDy = 6.4 μB.

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Доп.точки доступа:
Ritter, C.; Pankrats, A. I.; Панкрац, Анатолий Иванович; Gudim, I. A.; Гудим, Ирина Анатольевна; Vorotynov, A. M.; Воротынов, Александр Михайлович; European Conference on Neutron Scattering(5 ; 2011 ; Jul. 17- 21 ; Prague, Czech Republic)
}
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    X-ray and magnetic measurements of TmFeTi2O7 / T. V. Drokina [et al.] // Solid State Phenom. : Selected, peer reviewed papers. - 2014. - Vol. 215: Trends in Magnetism: Nanomagnetism (EASTMAG-2013). - P. 470-473, DOI 10.4028/www.scientific.net/SSP.215.470. - Cited References: 8 . - ISSN 978-30383. - ISSN 1662-9779
   Перевод заглавия: Рентгеновские и магнитные измерения TmFeTi2O7
Кл.слова (ненормированные):
Crystal structures -- Magnetic properties -- Spin glass state -- Zirconolite
Аннотация: In this paper we are reported about a peculiarity of the crystal structure and the magnetic state of TmFeTi2O7. The compound TmFeTi2O7 has been synthesized by the solid-phase reaction method. Using X-ray diffraction method the disorder in the distribution of the iron ions over five nonequivalent crystal sites was observed, also the populations of the iron atoms positions were determined. We show that below Tf = 6 K the magnetization of TmFeTi2O7 depends on the magnetic history of the sample. There are indications for spin glass state. This results allow us to assume the state of spin glass is realized below freezing temperature Tf = 6 K in TmFeTi2O7. © (2014) Trans Tech Publications, Switzerland.

Доп.точки доступа:
Ovchinnikov, S. G. \ed.\; Овчинников, Сергей Геннадьевич; Samardak, A. \ed.\; Drokina, T. V.; Дрокина, Тамара Васильевна; Petrakovskii, G. A.; Петраковский, Герман Антонович; Velikanov, D. A.; Великанов, Дмитрий Анатольевич; Molokeev, M. S.; Молокеев, Максим Сергеевич; Euro-Asian Symposium "Trends in MAGnetism": Nanomagnetism(5 ; 2013 ; sept. ; 15-21 ; Vladivostok)
}
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Plotkin, V. V.
Detecting a magnesiowustite phase transition in the lower mantle by inversion of geomagnetic data / V. V. Plotkin, P. G. Dyad'kov, S. G. Ovchinnikov // Russ. Geol. Geophys. - 2014. - Vol. 55, Is. 9. - P. 1138-1145, DOI 10.1016/j.rgg.2014.08.009. - Cited References: 26. - The study was supported by the Siberian Branch of the Russian Academy of Sciences (interdisciplinary integration project no. 96). . - ISSN 1068-7971. - ISSN 1878-030X

РУБ Geosciences, Multidisciplinary
Рубрики:
ELECTRICAL-CONDUCTIVITY
   SATELLITE MEASUREMENTS
   EARTHS MANTLE
   GLOBAL MVS
   INDUCTION
   FIELD
   METALLIZATION
Кл.слова (ненормированные):
magnesiowustite -- metallic state -- phase transition -- lower mantle -- conductivity -- geomagnetic variations -- global network
Аннотация: Global geomagnetic data are inverted for detecting a high-conductivity layer at depths of 1500-2000 km to test the hypothesis of a magnesiowustite phase transition in the lower mantle. We present the results of processing of both synthetic and global data-average monthly values of the geomagnetic field from 1920 to 2009. The inverted global data are consistent with the possible existence of a high-conductivity layer at great depths in the lower mantle.

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Публикация на русском языке Плоткин, Валерий Викторович. Выявление фазового перехода магнезиовюстита в нижней мантии: инверсия геомагнитных данных [Текст] / В. В. Плоткин, П. Г. Дядьков, С. Г. Овчинников // Геол. и геофиз. - Новосибирск : Изд-во СО РАН, 2014. - Т. 55 № 9. - С. 1436-1445

Держатели документа:
Russian Acad Sci, AA Trofimuk Inst Petr Geol & Geophys, Siberian Branch, Novosibirsk 630090, Russia
Russian Acad Sci, LV Kirensky Phys Inst, Siberian Branch, Krasnoyarsk 660036, Russia

Доп.точки доступа:
Dyad'kov, P. G.; Дядьков, Петр Георгиевич; Ovchinnikov, S. G.; Овчинников, Сергей Геннадьевич; Плоткин, Валерий Викторович; Siberian Branch of the Russian Academy of Sciences [96]
}
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Ferromagnetism in single-valent manganites / I. O. Troyanchuk [et al.] // J. Alloys Compd. - 2015. - Vol. 619. - P. 719-725, DOI 10.1016/j.jallcom.2014.08.236. - Cited References: 46. - The authors would like to thank J.B. Goodenough for the fruitful discussion. This work has been supported by Belarusian Republican Foundation for Fundamental Research (Grant F14R-040). . - ISSN 0925-8388. - ISSN 1873-4669

РУБ Chemistry, Physical + Materials Science, Multidisciplinary + Metallurgy & Metallurgical Engineering
Рубрики:
PHASE-SEPARATION
   DOPED MANGANITES
   DOUBLE EXCHANGE
   DIFFRACTION
   OXIDES
   NMR
Кл.слова (ненормированные):
Magnetically ordered materials -- Solid state reactions -- Exchange and superexchange -- Magnetic measurements -- Neutron diffraction
Аннотация: Structural and magnetization measurements have been performed on the La0.7Sr0.3Mn0.85 Nb 0.15 - x 5 + Mg x 2 + O3 stoichiometric compounds. With rise of the Mg2+ content the formal oxidation state manganese increases from +3 ( x = 0 ) up to +3.55 ( x = 0.15 ) . The compositions with 0 ⩽ x ≤ 0.08 undergo a structural transition from rhombohedral to orthorhombic symmetry below room temperature whereas x = 0.1 and x = 0.15 compounds are rhombohedral down to 2 K. The structural parameters evidence that the orthorhombic phase is not long-range orbitally ordered and that the structural transition is associated with a steric effect. The Mg-free compound is ferromagnetic with the Curie point of around 150 K and a magnetic moment of 3.1 μ B /Mn. The substitution of Nb5+ with Mg2+ leads to a gradual weakening of the ferromagnetic component while in the x = 0.15 compound A-type antiferromagnetic short-range order is stabilized in spite of macroscopic R 3 ¯ c symmetry. All the compositions show insulating behavior. It is suggested that ferromagnetism is originated from superexchange interactions via oxygen. Covalence enhances the positive part of the superexchange interactions whereas structural disorder induced by Nb5+ and Mg2+ ions leads to suppression of ferromagnetism.

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Держатели документа:
Sci Pract Mat Res Ctr NAS Belarus, Minsk 220072, Byelarus
Helmholtz Zentrum Berlin, D-14109 Berlin, Germany
Joint Inst Nucl Res, Dubna 141980, Russia
LV Kirenskii Inst Phys, Krasnoyarsk 660036, Russia
Inst Max Von Laue Paul Langevin, F-38042 Grenoble 9, France
ISMRA Univ Caen, UMR Associee CNRS 6508, Lab CRISMAT, F-14050 Caen, France
Univ Caen, F-14050 Caen, France

Доп.точки доступа:
Troyanchuk, I. O.; Bushinsky, M. V.; Sikolenko, V.; Efimov, V.; Volkov, N. V.; Волков, Никита Валентинович; Tobbens, D. M.; Ritter, C.; Raveau, B.
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Aleksandrov, K. S.
Phase-transitions in CS2CDI4 from measurements of birefringence and dielectric-properties / K. S. Aleksandrov, S. V. Melnikova, I. T. Kokov // Fiz. Tverd. Tela. - 1987. - Vol. 29, Is. 8. - P. 2487-2490. - Cited References: 8 . - ISSN 0367-3294

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Доп.точки доступа:
Melnikova, S. V.; Мельникова, Светлана Владимировна; Kokov, I. T.; Коков, Иван Трофимович; Александров, Кирилл Сергеевич
}
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10.

Gorev, M. V.
Heat capacity study of PMN near fieldinduced phase transition / M. V. Gorev, V. S. Bondarev, K. S. Aleksandrov // Ferroelectrics. - 2007. - Vol. 360, Is. 1, Pt. 2. - P. 37-43, DOI 10.1080/00150190701515964. - Cited References: 11 . - ISSN 0015-0193
Кл.слова (ненормированные):
Field-induced phase transition -- Heat capacity -- PMN -- Field cooling -- Field model -- Field-induced phase transition -- Heat capacities -- Heat capacity measurements -- Single crystal wafers -- Temperature range -- Zero-field heating -- Electric fields -- Single crystals -- Specific heat -- Phase transitions
Аннотация: Heat capacity measurements were performed for a single crystal wafer of PMN in the temperature range of 170-250 K applying an electric field E = 3.0 kV/cm along the [111] direction. The heat capacity anomalies related to the phase transition at Tc = 210 K upon zero field heating after field cooling and at Tc = 223 K upon field cooling have been found. The results obtained are discussed together with the data of previous studies in the frame of the spherical random bondrandom field model.

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Доп.точки доступа:
Bondarev, V. S.; Бондарев, Виталий Сергеевич; Aleksandrov, K. S.; Александров, Кирилл Сергеевич; Горев, Михаил Васильевич; International Seminar on Ferroelactic Physics(5 ; 2006 ; Sept. ; 10-13 ; Voronezh)
}
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