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1.


   
    Anisotropy of optical absorption of alpha-MnS single crystal / I. S. Edelman [et al.] // Phys. Solid State. - 2001. - Vol. 43, Is. 8. - P. 1549-1551 ; Phys. Solid State. - 2001. - Vol. 43, Is. 8. - P. 1549-1551, DOI 10.1134/1.1395100. - Cited References: 11 . - ISSN 1063-7834. - Вариант Sopus
РУБ Physics, Condensed Matter

Аннотация: The optical absorption spectra of an alpha -MnS single crystal and their temperature behavior in the range from 86 to 300 K are investigated for the (100) plane in the energy range from 8 x 10(3) to 22 x 10(3) cm(-1) for the first time. Comparison of these spectra with those for the (111) plane reveals an essential absorption anisotropy in unpolarized light. The anisotropy is manifested in a much stronger splitting of the lowest energy band for the (100) plane in comparison with that for the (111) plane. With decreasing temperature, the splitting becomes smaller. Possible mechanisms for the anisotropy revealed are proposed. (C) 2001 MAIK "Nauka/ Interperiodica".

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Держатели документа:
Russian Acad Sci, Siberian Div, LV Kirensky Phys Inst, Krasnoyarsk 660036, Russia
ИФ СО РАН
Kirensky Institute of Physics, Siberian Division, Russian Academy of Sciences, Akademgorodok, Krasnoyarsk, 660036, Russian Federation
Kirensky Institute of Physics, Siberian Division, Russian Academy of Sciences, Akademgorodok, Krasnoyarsk, 660036, Russian Federation

Доп.точки доступа:
Edelman, I. S.; Эдельман, Ирина Самсоновна; Romanova, O. B.; Романова, Оксана Борисовна; Ryabinkina, L. I.; Рябинкина, Людмила Ивановна; Abramova, G. M.; Абрамова, Галина Михайловна; Markov, V. V.; Марков, Владимир Витальевич

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2.


    Aplesnin, S. S.
    Magnetoresistance effect in anion-substituted manganese chalcogenides / S. S. Aplesnin, O. B. Romanova, K. I. Yanushkevich // Phys. Status Solidi B. - 2015. - Vol. 252, Is. 8. - P. 1792-1798, DOI 10.1002/pssb.201451607. - Cited References: 35. - This study was supported by the official assignment no. 114090470016. . - ISSN 0370. - ISSN 1521-3951. -
РУБ Physics, Condensed Matter
Рубрики:
MAGNETIC-PROPERTIES
   ELECTRONIC-STRUCTURE

   SOLID-SOLUTIONS

   MnTe

   MnSe

   CONDUCTIVITY

   TRANSITION

Кл.слова (ненормированные):
Electron tunneling -- Magnetic properties -- Magnetoresistance -- Semiconductors
Аннотация: The electric and magnetic properties of anion-substituted antiferromagnetic MnSe1-xTex (0.1≤x≤0.4) semiconductors in the 77-700K temperature range and magnetic fields under 1T are studied. In the MnSe1-xTex solid solutions, negative magnetoresistance in the vicinity of the Néel temperature for x=0.1 and for composition with x=0.2 in the paramagnetic range below 270K is revealed. A dependence of the magnetic susceptibility versus the prehistory of the samples is found. The model of localized spin-polarized electrons with the localization radius depending on the magnetic field is proposed for x=0.1. In the paramagnetic range, the negative magnetoresistance and the behavior of magnetic moment are a result of orbital glass formation.

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Держатели документа:
Kirensky Institute of Physics SB RAS, Akademgorodok 50, Krasnoyarsk, Russian Federation
Siberian State Aerospace University M F Reshetnev, Krasnoyarsky Rabochy Av. 31, Krasnoyarsk, Russian Federation
Scientific-Practical Materials Research Center NAS, P. Brovski Str.19, Minsk, Belarus

Доп.точки доступа:
Romanova, O. B.; Романова, Оксана Борисовна; Янушкевич, Казимир Иосифович; Yanushkevich K. I.; Аплеснин, Сергей Степанович
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3.


   
    Cation-substituted TmXMn1-XS solid solutions with special magnetic and electrical properties / O. B. Romanova [et al.] // 20th Int. Conf. on Magnetism (ICM-2015) : book of abstracts. - 2015. - P. 241
Рубрики:
Semiconductor spintronics

Материалы конференции

Доп.точки доступа:
Romanova, O. B.; Романова, Оксана Борисовна; Aplesnin, S. S.; Аплеснин, Сергей Степанович; Galyas, A. I.; Галяс А. И.; Yanushkevich, K. I.; Янушкевич, Казимир Иосифович; Sokolov, V. V.; Соколов В. В.; International Conference on Magnetism(20 ; 2015 ; Jul ; 5-10 ; Barselona, Spain)
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4.


   
    Concentration dependences of the structural, magnetic and kinetic properties of manganese chalcogenides doped with tellurium / O. B. Romanova, M. N. Sitnikov, Yu. Yu. Loginov, H. Abdelbaki // IOP Conf. Ser.: Mater. Sci. Eng. - 2022. - Vol. 1230. - Ст. 012016, DOI 10.1088/1757-899X/1230/1/012016. - Cited References: 26. - The reported study was funded by RFBR according to the research project No 20-52-00005 Bel_a . - ISSN 1757-8981. - ISSN 1757-899X
Аннотация: The effect of anionic substitution on the structural, magnetic, and kinetic properties of chalcogenides of the MnSe1-XTeX system in the temperature range of 77-400K in magnetic fields up to 12 kOe was studied. With an increase in the substitution concentration, changes in the structural and magnetic characteristics, which correlate with changes in the electronic structure, were found. The type and mobility of the main current carriers were determined from the Hall effect measurements.

https://doi.org/10.1088/1757-899X/1230/1/012016
Держатели документа:
Reshetnev Siberian State University of Science and Technology, 31 Krasnoyarskii rabochii prospekt, Krasnoyarsk, 660037, Russia
Kirensky Institute of Physics SB RAS, 50/38 Akademgorodok St., Krasnoyarsk, 660036, Russia

Доп.точки доступа:
Romanova, O. B.; Романова, Оксана Борисовна; Sitnikov, M. N.; Loginov, Yu. Yu.; Abdelbaki, H.; Reshetnev Readings 2019(11-15 November 2019 ; Krasnoyarsk, Russian Federation)
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5.


   
    Conductivity, structural and magnetic properties of manganese chalcogenide films under anionic substitution by tellurium / O. B. Romanova [et al.] // Moscow International Symposium on Magnetism (MISM-2017) : 1-7 July 2017 : book of abstracts. - 2017. - Ст. 4PO-I1-30. - P. 885

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Доп.точки доступа:
Romanova, O. B.; Романова, Оксана Борисовна; Aplesnin, S. S.; Аплеснин, Сергей Степанович; Sitnikov, M. N.; Kharkov, A. M.; Харьков, Анатолий Михайлович; Demidenko, O. F.; Galyas, A. I.; Yanyshkevich, K. I.; Moscow International Symposium on Magnetism(7 ; 2017 ; Jul. ; Moscow); Московский государственный университет им. М.В. Ломоносова; Российский фонд фундаментальных исследований
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6.


   
    Conductivity, weak ferromagnetism, and charge instability in an alpha-MnS single crystal / S. S. Aplesnin [et al.] // Phys. Rev. B. - 2005. - Vol. 71, Is. 12. - Ст. 125204 ; Phys. Rev. B Condens. Matter Mater. Phys. - 2005. - Vol. 71, Is. 12. - Ст. 125204, DOI 10.1103/PhysRevB.71.125204. - Cited References: 11 . - ISSN 1098-0121. - Вариант Sopus
РУБ Physics, Condensed Matter
Рубрики:
MANGANITES
Кл.слова (ненормированные):
ferromagnetic material -- manganese derivative -- absorption spectroscopy -- article -- calculation -- conductance -- crystal -- electron spin resonance -- hybridization -- magnetic field -- magnetism -- measurement -- molecular interaction -- temperature dependence -- temperature measurement -- ferromagnetic material -- manganese derivative -- absorption spectroscopy -- article -- calculation -- conductance -- crystal -- electron spin resonance -- hybridization -- magnetic field -- magnetism -- measurement -- molecular interaction -- temperature dependence -- temperature measurement
Аннотация: The temperature dependence of resistivity, magnetization, and electron-spin resonance of the α-MnS single crystal were measured in temperature range of 5 K < T< 550 K. Magnetization hysteresis in an applied magnetic field up to 0.7 T at T=5, 77, and 300 K, irreversible temperature behavior of magnetization, and resistivity were found. The obtained data were explained in terms of a degenerate tight binding model using random phase. approximation. The contribution of holes in t(2g) and e(g) bands of manganese ions to the conductivity, optical absorbtion spectra, and charge instability in α-MnS were studied. Charge susceptibility maxima resulted from the competition of the on-site Coulomb interaction between the holes in different orbitals and small hybridization of subbands were calculated at T = 160, 250, and 475 K.

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Держатели документа:
Russian Acad Sci, LV Kirensky Phys Inst, Siberian Branch, Krasnoyarsk 660036, Russia
ИФ СО РАН
Kirensky Institute of Physics, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk, 660036, Russian Federation
Kirensky Institute of Physics, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk, 660036, Russian Federation

Доп.точки доступа:
Aplesnin, S. S.; Аплеснин, Сергей Степанович; Ryabinkina, L. I.; Рябинкина, Людмила Ивановна; Abramova, G. M.; Абрамова, Галина Михайловна; Romanova, O. B.; Романова, Оксана Борисовна; Vorotynov, A. M.; Воротынов, Александр Михайлович; Velikanov, D. A.; Великанов, Дмитрий Анатольевич; Kiselev, N. I.; Balaev, A. D.; Балаев, Александр Дмитриевич

}
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7.


   
    Crystal structure and electrical properties of Gd (x) Mn1-x S and Ti (x) Mn1-x Se solid solutions / A. I. Galyas [et al.] // Phys. Solid State. - 2010. - Vol. 52, Is. 4. - P. 687-690, DOI 10.1134/S1063783410040037. - Cited References: 10. - This study was supported by the Belarussian Republican Foundation for Fundamental Research (project no. F04-182), the Russian Foundation for Basic Research-Belarussian Republican Foundation for Fundamental Research (project no. 08-02-90031), the Russian Foundation for Basic Research (project nos. 09-02-00554-a and 09-02-92001-NNS-a), and the Federal Agency for Education of the Russian Federation (the State Program "Development of the Scientific Potential of the Higher School," project no. 2.1.1/401). . - ISSN 1063-7834
РУБ Physics, Condensed Matter
Рубрики:
MNSE
   SULFIDES

   CO

Аннотация: Regions of the existence of sulfide Gd (x) Mn1 - x S and selenide Ti (x) Mn1 - x Se solid solutions have been identified. Their electrical and thermoelectric properties have been studied in the temperature range 80-900 K. It has been established that the substitution of Gd2+ and Ti2+ ions for Mn2+ cations initiates reversal of the type of charge carrier with respect to the starting compounds MnS and MnSe. The cation substitution in solid solutions brings about a change from the hole conduction (alpha 0) characteristic of the manganese monosulfide and monoselenide to the electronic conduction (alpha 0).

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Держатели документа:
[Galyas, A. I.
Demidenko, O. F.
Makovetskii, G. I.
Yanushkevich, K. I.] Natl Acad Sci Belarus, Sci Pract Mat Res Ctr, Minsk 220072, Byelarus
[Ryabinkina, L. I.
Romanova, O. B.] Russian Acad Sci, Siberian Branch, LV Kirensky Phys Inst, Krasnoyarsk 660036, Russia
[Ryabinkina, L. I.
Romanova, O. B.] Reshetnev Siberian State Aerosp Univ, Krasnoyarsk 660014, Russia
ИФ СО РАН
Scientific-Practical Materials Research Centre, National Academy of Sciences of Belarus, ul. P. Brovki 19, Minsk, 220072, Belarus
Kirensky Institute of Physics, Siberian Branch, Russian Academy of Sciences, Akademgorodok 50, Krasnoyarsk, 660036, Russian Federation
Reshetnev Siberian State Aerospace University, pr. im. Gazety Krasnoyarskii Rabochii 31, Krasnoyarsk, 660014, Russian Federation

Доп.точки доступа:
Galyas, A. I.; Demidenko, O. F.; Makovetskii, G. I.; Yanushkevich, K. I.; Ryabinkina, L. I.; Рябинкина, Людмила Ивановна; Romanova, O. B.; Романова, Оксана Борисовна
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8.


   
    Cпин-стекольные эффекты в твердых растворах CoxMn1-xS / С. С. Аплеснин, Л. И. Рябинкина [и др.] // Изв. РАН. Сер. физ. - 2009. - 73. - С. 1021-1023

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

Доп.точки доступа:
Аплеснин, Сергей Степанович; Aplesnin, S. S.; Рябинкина, Людмила Ивановна; Ryabinkina, L. I.; Романова, Оксана Борисовна; Romanova, O. B.; Бандурина, Ольга Николаевна; Горев, Михаил Васильевич; Gorev, M. V.; Балаев, Александр Дмитриевич; Balaev, A.D.; Еремин, Евгений Владимирович; Eremin, E. V.
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9.


   
    Cульфидные соединения MeXMn1-XS (Me = Cr, Fe, V, Co): технология, транспортные свойства и магнитное упорядочение / Л. И. Рябинкина, О. Б. Романова, С. С. Аплеснин // Известия Российской академии наук. Серия физическая. - 2008. - Т. 72, Вып. 8. - С. 1115-1117

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

Доп.точки доступа:
Рябинкина, Людмила Ивановна; Ryabinkina, L. I.; Романова, Оксана Борисовна; Romanova, O. B.; Аплеснин, Сергей Степанович; Aplesnin, S. S.
}
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10.


   
    Dielectric and transport properties, electric polarization at the sequential structural phase transitions in iron-substituted bismuth pyrostannate / S. S. Aplesnin, L. V. Udod, M. N. Sitnikov, O. B. Romanova // Ceram. Int. - 2021. - Vol. 47, Is. 2. - P. 1704-1711, DOI 10.1016/j.ceramint.2020.08.287. - Cited References: 33. - The reported study was funded by Russian Foundation for Basic Research project № 20-52-00005 Bel_a . - ISSN 0272-8842
Кл.слова (ненормированные):
Dielectric properties -- Impedance -- Electrical conductivity -- Electric polarization -- Thermopower
Аннотация: The electrical characteristics including the electrical resistance, impedance, I–V characteristics, capacitance, dissipation factor, and thermoelectric power of the Bi2Sn2-хFeхO7 (х = 0.1, 0.2) stannates have been investigated in the temperature range of 100–600 K at frequencies of 102–106 Hz. The paramagnetic contribution of electrons to the dynamic magnetic susceptibility has been established. The conductivity mechanism of the compounds has been found from the I–V characteristics and the change in the carrier sign has been determined from the thermoelectric power. The hysteresis of the I–V curves, charge transfer currents and polarization current have been observed in the Bi2Sn1·8Fe0·2O7 compound. A nonlinear field dependence of the polarization in the orthorhombic phase has been found. The correlation between the obtained characteristics and the phase structure transitions has been established. Two relaxation channels and activation energy have been found using the Debye model. The hysteretic I–V characteristics have been explained using a model of the electronic structure and the dipole and migration polarization.

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

Доп.точки доступа:
Aplesnin, S. S.; Аплеснин, Сергей Степанович; Udod, L. V.; Удод, Любовь Викторовна; Sitnikov, M. N.; Romanova, O. B.; Романова, Оксана Борисовна
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