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Growth and thermoelectric properties of composite thin films based on higher iron and manganese silicides / I. A. Tarasov, I. A. Yakovlev, M. N. Volochaev [et al.] // The Fifth Asian School-Conference on Physics and Technology of Nanostructured Materials : Proceedings. - VLadivostok : Dalnauka Publishing, 2020. - Ст. III.30.04p. - P. 90 . - ISBN 978-5-8044-1698-1

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Доп.точки доступа:
Tarasov, I. A.; Тарасов, Иван Анатольевич; Yakovlev, I. A.; Яковлев, Иван Александрович; Volochaev, M. N.; Волочаев, Михаил Николаевич; Nazarova, Z.I.; Nazarov, A.; Fedorov, A. S.; Федоров, Александр Семенович; Varnakov, S. N.; Варнаков, Сергей Николаевич; Ovchinnikov, S. G.; Овчинников, Сергей Геннадьевич; Asian School-Conference on Physics and Technology of Nanostructured Materials(5 ; 2020 ; 30 Jul - 3 Aug ; Vladivostok); Азиатская школа-конференция по физике и технологии наноструктурированных материалов(5 ; 2013 ; 30 июля - 3 авг. ; Владивосток)
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Zhandun, V. S.
Ab initio comparative study of the magnetic, electronic and optical properties of AB2O4 (A, B= Mn, Fe) spinels / V. S. Zhandun, A. V. Nemtsev // Mater. Chem. Phys. - 2021. - Vol. 259. - Ст. 124065, DOI 10.1016/j.matchemphys.2020.124065. - Cited References: 32. - The reported study was funded by Russian Foundation for Basic Research, Government of Krasnoyarsk Territory, Krasnoyarsk Regional Fund of Science to the research project № 19-42-240016: «Control of structural, magnetic, electronic, and optical properties by pressure and intercalation into functional compounds with a spinel structure containing 3d and 4f ions » The calculations were performed with the computer resources of “Complex modeling and data processing research installations of mega-class” SRC “Kurchatovsky Institute” (http://ckp.urcki.ru) . - ISSN 0254-0584. - ISSN 1879-3312
Кл.слова (ненормированные):
Ab initio calculations -- Spinel -- Magnetic and electronic properties -- Optical properties -- Inverse structure -- Manganese and iron oxides
Аннотация: The comparison of the magnetic, electronic, and optical properties of the spinel transition-metal oxides AB2O4 (A, B = Fe, Mn) and their relationship with the structure and composition were studied within DFT-GGA + U approximation. The spinels were considered both in the normal and inverse structure. We have found that regardless of composition and structure, the studied spinels are ferrimagnetic with antiparallel magnetic moments on A- and B-site cations. Electronic and structural properties of spinels depend on the composition: FeMn2O4 has a tetragonal structure and half-metallic properties; however, in the inverse FeMn2O4, the bandgap opens for the spin-up channel. MnFe2O4 is a cubic insulator with a bandgap of about 1.5 eV, which decreases in the inverse structure. The superexchange constants estimate within the simple indirect coupling model and have values close to the experimental ones. The total magnetization of FeMn2O4 is drop-down to zero under hydrostatic pressure above 60 GPa due to the strong dependence of the magnetic moment of octahedral manganese ion on the pressure. The microscopic mechanisms of the relationship between the structure, composition and properties are studied.

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Держатели документа:
Kirensky Institute of Physics, Federal Research Center, Krasnoyarsk Science Centre, Siberian Branch of the Russian Academy of Sciences, 660036, Krasnoyarsk, Russia

Доп.точки доступа:
Nemtsev, A. V.; Немцев, А. В.; Жандун, Вячеслав Сергеевич
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Solvatochromic Photoluminescent Effects in All-Inorganic Manganese(II)-Based Perovskites by Highly Selective Solvent-Induced Crystal-to-Crystal Phase Transformations / H. Xiao, P. P. Dang, X. H. Yun [et al.] // Angew. Chem. Int. Edit. - 2021. - Vol. 60, Is. 7. - P. 3699-3707, DOI 10.1002/anie.202012383. - Cited References: 85. - This work was supported by National Natural Science Foundation of China (NSFC 51932009, 51772288, 52072349, 51672259) and the Joint Fund Project to Promote Science and Technology Cooperation Across the Taiwan Straits (U2005212), the Science and Technology Cooperation Fund between Chinese and Australian Governments (2017YFE0132300), CAS-Croucher Funding Scheme for Joint Laboratories (CAS18204), Chinese Academy of Sciences (YZDY-SSWJSC018) . - ISSN 1433-7851. - ISSN 1521-3773

РУБ Chemistry, Multidisciplinary
Рубрики:
LEAD-FREE
   HALIDE PEROVSKITE
   NANOCRYSTALS
   MN2+
   LUMINESCENCE
Кл.слова (ненормированные):
lead-free materials -- low-dimensional perovskites -- luminescence -- manganese -- phase transitions
Аннотация: The development of lead‐free perovskite photoelectric materials has been an extensive focus in the recent years. Herein, a novel one‐dimensional (1D) lead‐free CsMnCl3(H2O)2 single crystal is reported with solvatochromic photoluminescence properties. Interestingly, after contact with N,N‐dimethylacetamide (DMAC) or N,N‐dimethylformamide (DMF), the crystal structure can transform from 1D CsMnCl3(H2O)2 to 0D Cs3MnCl5 and finally transform into 0D Cs2MnCl4(H2O)2. The solvent‐induced crystal‐to‐crystal phase transformations are accompanied by loss and regaining of water of crystallization, leading to the change of the coordination number of Mn2+. Correspondingly, the luminescence changes from red to bright green and finally back to red emission. By fabricating a test‐paper containing CsMnCl3(H2O)2, DMAC and DMF can be detected quickly with a response time of less than one minute. These results can expand potential applications for low‐dimensional lead‐free perovskites.

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Держатели документа:
Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Rare Earth Resource Utilizat, 5625 Renmin St, Changchun 130022, Peoples R China.
Univ Sci & Technol China, Hefei 230026, Peoples R China.
China Univ Geosci, Fac Mat Sci & Chem, Minist Educ, Engn Res Ctr Nanogeomat, Wuhan 430074, Peoples R China.
RAS, SB, Lab Crystal Phys, Kirensky Inst Phys,Fed Res Ctr,KSC, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Krasnoyarsk 660041, Russia.
Far Eastern State Transport Univ, Dept Phys, Khabarovsk 680021, Russia.

Доп.точки доступа:
Xiao, Hui; Dang, Peipei; Yun, Xiaohan; Li, Guogang; Wei, Y.i.; Xiao, Xiao; Zhao, Yajie; Molokeev, M. S.; Молокеев, Максим Сергеевич; Cheng, Ziyong; Lin, Jun
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    Solvatochromic photoluminescent effects in all-inorganic manganese(II)-based perovskites by highly selective solvent-induced crystal-to-crystal phase transformations / H. Xiao, P. Dang, X. Yun [et al.] // Angew. Chem. - 2021. - Vol. 133, Is. 7. - P. 3743-3751, DOI 10.1002/ange.202012383. - Cited References: 73. - This work was supported by National Natural Science Foundation of China (NSFC 51932009, 51772288, 52072349, 51672259) and the Joint Fund Project to Promote Science and Technology Cooperation Across the Taiwan Straits (U2005212), the Science and Technology Cooperation Fund between Chinese and Australian Governments (2017YFE0132300), CAS-Croucher Funding Scheme for Joint Laboratories (CAS18204), Chinese Academy of Sciences (YZDY-SSWJSC018) . - ISSN 1521-3757
   Перевод заглавия: Сольватохромные фотолюминесцентные эффекты в полностью неорганическом перовските на основе марганца (II), вызванные высокоселективными фазовыми превращениями кристалла-кристалл, индуцированными растворителем
Кл.слова (ненормированные):
lead-free materials -- low-dimensional perovskites -- luminescence -- manganese -- phase transitions
Аннотация: The development of lead‐free perovskite photoelectric materials has been an extensive focus in the recent years. Herein, a novel one‐dimensional (1D) lead‐free CsMnCl3(H2O)2 single crystal is reported with solvatochromic photoluminescence properties. Interestingly, after contact with N,N‐dimethylacetamide (DMAC) or N,N‐dimethylformamide (DMF), the crystal structure can transform from 1D CsMnCl3(H2O)2 to 0D Cs3MnCl5 and finally transform into 0D Cs2MnCl4(H2O)2. The solvent‐induced crystal‐to‐crystal phase transformations are accompanied by loss and regaining of water of crystallization, leading to the change of the coordination number of Mn2+. Correspondingly, the luminescence changes from red to bright green and finally back to red emission. By fabricating a test‐paper containing CsMnCl3(H2O)2, DMAC and DMF can be detected quickly with a response time of less than one minute. These results can expand potential applications for low‐dimensional lead‐free perovskites.

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Держатели документа:
State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun, 130022 China
University of Science and Technology of China, Hefei, 230026 China
Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan, 430074 China
Laboratory of Crystal Physics, Kirensky Institute of Physics, Federal Research Center KSC SB RAS, 660036 Krasnoyarsk, Russia
Siberian Federal University, 660041 Krasnoyarsk, Russia
Department of Physics, Far Eastern State Transport University, 680021 Khabarovsk, Russia

Доп.точки доступа:
Xiao, Hui; Dang, Peipei; Yun, Xiaohan; Li, Guogang; Wei, Yi; Xiao, Xiao; Zhao, Yajie; Molokeev, M. S.; Молокеев, Максим Сергеевич; Cheng, Ziyong; Lin, Jun
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Aplesnin, S. S.
Magnetic capacitance in variable-valence manganese sulfides / S. S. Aplesnin, A. M. Kharkov, G. Y. Filipson // Phys. Status Solidi B. - 2020. - Vol. 257, Is. 5. - Ст. 1900637, DOI 10.1002/pssb.201900637. - Cited References: 12. - This study was supported by the Russian Foundation for Basic Research No. 18-32-00079 mol_a. The reported study was funded by Russian Foundation for Basic Research, Government of Krasnoyarsk Territory, Krasnoyarsk Regional Fund of Science No. 18-42-240001 r_a . - ISSN 0370-1972
Кл.слова (ненормированные):
Debye model -- infrared spectroscopy -- magnetocapacitance -- permittivity -- relaxation time
Аннотация: The permittivity of TmxMn1–xS (0 < x < 0.15) solid solutions is measured in the frequency range of 102–106 Hz at temperatures of 300–500 K in magnetic fields of up to 12 kOe. The migration and relaxation conductivity contributions to the electric polarization are established. The relaxation time and activation energy are calculated using the Debye model. A decrease in the capacitance and relaxation time in a magnetic field is observed. The electron polarization relaxation channel provided by recombination of the electron–hole pairs is found using the infrared spectroscopy investigations.

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Держатели документа:
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Akademgorodok 50 bld. 38, Krasnoyarsk, 660036, Russian Federation
Institute of Space Technology, Reshetnev Siberian State University of Science and Technology, Krasnoyarskiy rabochiy Ave., 31, Krasnoyarsk, 660037, Russian Federation

Доп.точки доступа:
Kharkov, A. M.; Filipson, G. Y.; Аплеснин, Сергей Степанович
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    Реакции фенилацетиленидных комплексов золота (i) и фенилвинилиденов марганца и рения / В. В. Верпекин [и др.] // Полифункциональные химические материалы и технологии : матер. междунар. науч. конф. : в 2-х т. - 2019. - Т. 1. - С. 172-173. - Исследование выполнено при финансовой поддержке Российского фонда фундаментальных исследований, Правительства Красноярского края, Красноярского краевого фонда науки в рамках научного проекта «Новые соединения на основе золота и благородных металлов: синтез, физико-химические свойства, каталитическая способность» (грант №18-43-240010) . - ISBN 978-5-6042143-9-8
   Перевод заглавия: Reactions of gold (i) phenylacetylide complexes with manganese and rhenium phenylvinyidene complexes
Аннотация: A reactivity of gold phenylacetylides (L)Au-C=C-Ph (L = SMe2, C4H8S, C5H5N) towards the vinylidene complexes of rhenium and manganese containing a metallaallene system M=C=C are studied for the first time.

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

Доп.точки доступа:
Верпекин, Виктор Васильевич; Васильев, Александр Дмитриевич; Vasiliev, A. D.; Павленко, Нина Ивановна; Зимонин, Дмитрий Валерьевич; Бурмакина, Галина Вениаминовна; Полифункциональные химические материалы и технологии(2019 ; май. ; 22-25 ; Томск); Томский государственный университет
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Romanova, O. B.
Structural properties of sulfides chalcogenides manganese substituted by elements with variable valency / O. B. Romanova, L. V. Udod, O. F. Demidenko // IOP Conf. Ser.: Mater. Sci. Eng. - 2020. - Vol. 918, Is. 1. - Ст. 012101DOI 10.1088/1757-899X/918/1/012101. - Cited References: 33. - The reported study was funded by RFBR according to the research project №20-52-00005 Bel_a
Аннотация: The structure and transport of YbXMn1-XS and TmXMn1-XS sulfides (0.05=X=0.2) was studied in the temperature range 80-500K. The temperature ranges of local deformations and a decrease of the thermal expansion coefficient with increasing concentration X caused of anomalous compressibility in the magnetically ordered region are determined for a system doped with ytterbium. Pinning temperatures of lattice polarons are established, which are accompanied by lattice deformation and IR mode condensation for a system doped with thulium.

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Держатели документа:
Kirensky Institute of Physics, Federal Research Center Ksc Sb Ras, Krasnoyarsk, 660036, Russian Federation
Reshetnev Siberian State University of Science and Technology, Krasnoyarsk, 660037, Russian Federation
Scientific-Practical Materials Research Center Nas, Minsk, 220072, Belarus

Доп.точки доступа:
Udod, L. V.; Удод, Любовь Викторовна; Demidenko, O. F.; Романова, Оксана Борисовна; International Scientific Conference Transport of Siberia 2020(8th ; (22-27 May 2020 ; Novosibirsk, Russia)
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Magnetoimpedance, Jahn-Teller transitions upon electron doping of manganese sulfide / S. S. Aplesnin, M. N. Sitnikov, A. M. Kharkov [et al.] // J. Magn. Magn. Mater. - 2020. - Vol. 513. - Ст. 167104, DOI 10.1016/j.jmmm.2020.167104. - Cited References: 42. - This study was supported by youth project_Reshetnev Siberian State University of Science and Technology . - ISSN 0304-8853
Кл.слова (ненормированные):
Impedance -- Prehistory of magnetic susceptibility -- Magnetoimpedance -- Fermi glass -- Orbital magnetic moment -- Electron paramagnetic resonance -- IR spectra -- JT transitions -- Conductivity
Аннотация: The effect of a magnetic field on the electrical and magnetic properties of manganese sulfide upon electron doping in the YbxMn1−xS (0.05 ˂ x ˂ 0.2) compound has been investigated. The change in the conductivity type from the Poole–Frenkel to Mott law have been established using the I–V characteristics and the change in the carrier type upon temperature and concentration variations has been observed. The effect of the sample prehistory on the conductivity, impedance, and magnetic susceptibility under the action of a magnetic field in a wide temperature range has been found. The trivalent state of ytterbium ions has been determined using the electron paramagnetic resonance study. The dynamic JT transitions temperature are found by IR method and by the electron paramagnetic resonance. Anomalies of carrier mobility and magneto-impedance were found in the vicinity of the Jahn-Teller transitions. The experimental data are explained by the localization of electrons with the formation of the interstitial orbital momenta and an orbital momentum into the site. The sample prehistory is related to the lifting of the orbital angular moments degeneracy and the direction of the axis of distortion of the octahedrons in a magnetic field.

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Держатели документа:
Reshetnev Siberian State University of Science and Technology, Krasnoyarsk, 660037, Russian Federation
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Akademgorodok, 50, Krasnoyarsk, 660036, Russian Federation

Доп.точки доступа:
Aplesnin, S. S.; Аплеснин, Сергей Степанович; Sitnikov, M. N.; Kharkov, A. M.; Konovalov, S. O.; Vorotinov, A. M.; Воротынов, Александр Михайлович
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    Photoluminescence of pefloxacindi-ium manganese(II) and zinc(II) tetrahalides / N. N. Golovnev, M. A. Gerasimova, M. S. Molokeev [et al.] // J. Mol. Struct. - 2022. - Vol. 1248. - Ст. 131468, DOI 10.1016/j.molstruc.2021.131468. - Cited References: 42. - The research was funded by RFBR, Krasnoyarsk Territory and Krasnoyarsk Regional Fund of Science, project number 20-43-240007. Authors thank the Centre for Equipment Joint User of School of Petroleum and Natural Gas Engineering of Siberian Federal University, Institute of Chemistry and Chemical Technology SB RAS for their technical support . - ISSN 0022-2860
   Перевод заглавия: Фотолюминесценция тетрагалогенидов марганца(II) и цинка(II) пефлоксацина
Кл.слова (ненормированные):
Manganese and zinc halides -- Pefloxacin -- Ionic compounds -- Photoluminescence -- X-ray diffraction -- Thermal decomposition
Аннотация: Mn2+-based hybrid materials have become the hotspot of current research studies owing to their high photoluminescence quantum yield (PLQY), low-cost, environmental friendliness and stability. For the first time, we report the hydrothermal synthesis of two lead-free zero-dimensional luminescent organic-inorganic hybrid compounds, PefH2[MnBr4] (1) and PefH2[MnCl4] (2) (Pef = pefloxacin). They were characterized by elemental analysis, TG-DSC, single-crystal and powder XRD. Compounds 1–2 exhibit a distorted tetrahedral geometry around the manganese(II) metal center, which is isolated from the same centers by bulky pefloxacindi-ium (PefH22+) ions with a Mn···Mn distance of 7.3 Å. Their structures are stabilized by N—H···O, O—H···X (X = Br, Cl), C—H···O and C—H···X hydrogen bands and π–π stacking interaction. Thermal decomposition starts at T › 230°С for 1 and T › 210°С for 2 and proceeds for several stages. Upon UV excitation compounds exhibit a bright green emission with a moderate PLQY of 45% for 1 and 30% for 2. The influence of the halide ion and metal ion on the photoluminescence properties of isostructural compounds PefH2[MX4] (M = Mn, Zn and X = Br, Cl) is discussed.

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Держатели документа:
Siberian Federal University, 79 Svobodny Prospect, Krasnoyarsk, 660041, Russian Federation
Laboratory of Crystal Physics, Kirensky Institute of Physics, Federal Research Center KSC SB RAS, bld. 38 Akademgorodok 50, Krasnoyarsk, 660036, Russian Federation
Department of Physics, Far Eastern State Transport University, 47 Seryshev Str., Khabarovsk, 680021, Russian Federation
Research and Development Department, Kemerovo State University, 6 Krasnaya Str., Kemerovo, 650000, Russian Federation

Доп.точки доступа:
Golovnev, N. N.; Gerasimova, M. A.; Molokeev, M. S.; Молокеев, Максим Сергеевич; Plyaskin, M. E.; Baronin, M. E.
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10.

    Романова, Оксана Борисовна.
    Кинетические эффекты в сульфидах марганца замещенных тулием и иттербием / О. Б. Романова, С. С. Аплеснин, Л. В. Удод // Новое в магнетизме и магнитных материалах : сборник трудов XXIV международной конференции / прогр. ком.: Р. С. Исхаков, С. Г. Овчинников. - 2021. - Секция 7: Кинетические эффекты в магнетиках. - С. 17-20. - Библиогр.: 9. - Исследование выполнено при финансовой поддержке РФФИ и БРФФИ в рамках научного проекта No 20-52-00005
   Перевод заглавия: Kinetic effects in manganese sulfides substituted by thulium and ytterbium
Аннотация: Данная работа посвящена изучению кинетических эффектов в сульфидах марганца допированных элементами с переменной валентностью (Yb и Tm с Х≤0.05) измеренных в диапазоне температур (77-400 K) и магнитных полей до 12 кЭ. Из ВАХ определены механизмы проводимости, для системы Yb0.05Mn0.99S преобладает Пула– Френкеля, а для Tm0.01Mn0.99S описывается законом Ома. Обнаружен эффект магнитосопротивления в этих системах. Наблюдаются аномалии на температурной зависимости термоЭДС.
This work is to the study of kinetic effects in manganese sulfides doped with elements with variable valence (Yb and Tm with X≤0.05) measured in the temperature range (77-400 K) and magnetic fields up to 12 kOe. The conduction mechanisms are determined by I – V characteristics: for the Yb0.05Mn0.99S is Poole – Frenkel, and for Tm0.01Mn0.99S it is described by Ohm's law. The effect of magnetoresistance is found in these systems. Anomalies are observed in the temperature dependence of the thermoEMF.

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Институт физики им. Л.В. Киренского СО РАН

Доп.точки доступа:
Исхаков, Рауф Садыкович \прогр. ком.\; Iskhakov, R. S.; Овчинников, Сергей Геннадьевич \прогр. ком.\; Ovchinnikov, S. G.; Аплеснин, Сергей Степанович; Aplesnin, S. S.; Удод, Любовь Викторовна; Udod, L. V.; Romanova, O. B.; "Новое в магнетизме и магнитных материалах", международная конференция(24 ; 2021 ; 1-8 июля ; Москва); Научный совет по физике конденсированных сред РАН; МИРЭА - Российский технологический университет; Московский государственный университет им. М.В. Ломоносова; Магнитное общество России
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