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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Babkin E. V., Kiselev N. I., Pyn'ko V. G.
Заглавие : Characteristics of magnetite magnetoresistance
Место публикации : Fiz. Tverd. Tela: MEZHDUNARODNAYA KNIGA, 1995. - Vol. 37, Is. 11. - P.3547-3549. - ISSN 0367-3294
Примечания : Cited References: 5
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Petrakovskii G. A., Ryabinkina L. I., Kiselev N. I., Velikanov D. A., Bovina A. F., Abramova G. M.
Заглавие : Colossal magnetoresistance of FexMn1-xS magnetic semiconductors
Место публикации : JETP Letters. - 1999. - Vol. 69, Is. 12. - P.949-953. - ISSN 0021-3640, DOI 10.1134/1.568118
Примечания : Cited References: 8
Предметные рубрики: MANGANITES
Аннотация: The magnetic, electric, magnetoresistive, and structural properties are investigated in the sulfide solid solutions FexMn1-xS, which are based on the antiferromagnetic semiconductor alpha-MnS (the fcc NaCl lattice). Colossal negative magnetoresistance (delta(H)similar to-83% at 160 K for x similar to 0.29), comparable to that observed in La-Ca-Mn-O polycrystals and films (delta(H)similar to-90% at 100 K and 40 kOe), is observed in compounds with intermediate concentrations 0.26 x 0.4, corresponding to the region of incipient ferromagnetism. (C) 1999 American Institute of Physics. [S0021-3640(99)01212-8].
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Aplesnin S. S., Ryabinkina L. I., Abramova G. M., Romanova O. B., Vorotynov A. M., Velikanov D. A., Kiselev N. I., Balaev A. D.
Заглавие : Conductivity, weak ferromagnetism, and charge instability in an alpha-MnS single crystal
Разночтения заглавия :авие SCOPUS: Conductivity, weak ferromagnetism, and charge instability in an α-MnS single crystal; авие SCOPUS: Conductivity, weak ferromagnetism, and charge instability in an ?-MnS single crystal
Место публикации : Phys. Rev. B: AMERICAN PHYSICAL SOC, 2005. - Vol. 71, Is. 12. - Ст.125204. - ISSN 1098-0121, DOI 10.1103/PhysRevB.71.125204; Phys. Rev. B Condens. Matter Mater. Phys. - 2005. - Vol. 71, Is. 12. - Ст.125204. - Вариант Sopus
Примечания : Cited References: 11
Предметные рубрики: MANGANITES
Ключевые слова (''Своб.индексиров.''): 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
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Loseva G. V., Ovchinnikov S. G., Chernov V. K., Ivanova N. B., Kiselev N. I., Bovina A. V.
Заглавие : Correlation between the magnetic and electrical properties of the (VS)(x)(Fe2O3)(2-x) oxysulfide system
Разночтения заглавия :us: Correlation between the magnetic and electrical properties of the (VS)x(Fe2O3)2-x oxysulfide system
Место публикации : Phys. Solid State: AMER INST PHYSICS, 2000. - Vol. 42, Is. 4. - P730-733. - ISSN 1063-7834, DOI 10.1134/1.1131281
Примечания : Cited References: 7
Аннотация: The correlation between the magnetic and electrical properties of the (VS)(x)(Fe2O3)(2-x) (0.9 x 1.25) oxysulfide solid solutions has been studied. The crossover of conductivity from the semimetallic to semiconducting type is accompanied by changes in the magnetic susceptibility, which are characteristic of the transition from delocalized to localized electrons. For x
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Kiselev N. I., Velikanov D. A., Korchagina S. B., Petrakovskaya E. A., Vasil'ev A. D., Solov'ev L. A., Balaev D. A., Bayukov O. A., Denisov I. A., Tsegel'Nik S. S., Eremin E. V., Znak D. A., Shaikhutdinov K. A., Shubin A. A., Shestakov N. P., Volkov N. V., Gordeev S. K., Belobrov P. I.
Заглавие : Electrical and magnetic properties of nanodiamond and pyrocarbon composites
Место публикации : Russ. J. Gen. Chem. - 2013. - Vol. 83, Is. 11. - P.2173-2181. - ISSN 1070-3632, DOI 10.1134/S1070363213110376
Аннотация: The electrical and magnetic properties of the nanodiamond composites comprising nanodiamond, pyrolytic carbon, and nanosized pores were studied. The composites are p-type semiconductors and their resistance decreases by 12 orders of magnitude as the pyrocarbon-to-diamond ratio γ increases from 0 to 80 wt %. Evidence for paramagnetic properties of the nanodiamond composites was obtained. The observed properties are explained by increased concentration of surface Tamm states. The paramagnetic properties are explained in terms of the electron spins localized on the nanodiamond surface in the composite.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Abramova G. M., Patrin G. S., Kiselev N. I., Petrakovskii G. A.
Заглавие : Electrical properties of chromium films
Место публикации : Phys. Solid State. - 1999. - Vol. 41, Is. 3. - P.341-343. - ISSN 1063-7834, DOI 10.1134/1.1130779
Примечания : Cited References: 11
Предметные рубрики:
Аннотация: We have investigated experimentally the influence of a constant electric current on the magnitude and temperature dependence of the resistance of chromium films prepared by vacuum-thermal condensation. The results are interpreted in terms of the Frohlich conductivity model. (C) 1999 American Institute of Physics. [S1063-7834(99)00303-2].
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Abramova G. M., Vorotynov A. M., Petrakovskii G. A., Kiselev N. I., Velikanov D. A., Bovina A. F., Al'mukhametov R. F., Yakshibaev R. A., Gabitov E. V.
Заглавие : Electron transition in intercalated disulfide CuCrS2
Место публикации : Phys. Solid State: MAIK NAUKA/INTERPERIODICA/SPRINGER, 2004. - Vol. 46, Is. 12. - P2225-2228. - ISSN 1063-7834, DOI 10.1134/1.1841385
Примечания : Cited References: 12
Предметные рубрики: METAL DICHALCOGENIDES
MAGNETIC-PROPERTIES
Аннотация: Electrical, resonant, and magnetic properties of intercalated copper chromium disulfide CuCrS2 are studied. It is established that CuCrS2 is an antiferromagnetic semiconductor with Neel temperature T-N = 40.7 K and an effective magnetic moment of 4.3mu(B). Anomalies in the electrical, magnetic, and resonant properties of CuCrS2 are found at T-c = 110 K, which suggest an electron transition accompanied by alteration of the valences of the 3d-metal ions. (C) 2004 MAIK "Nauka/Interperiodica".
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Petrakovskii G. A., Ryabinkina L. I., Abramova G. M., Balaev D. A., Kiselev N. I., Romanova O. B., Yanyshkevich K. I.
Заглавие : FexMn1-xS solid solutions with colossal magnetoresistance effect
Коллективы : OMA-2001/ODPO-2001 Conference
Место публикации : Izv. Akad. Nauk Ser. Fiz. - 2002. - Vol. 66, Is. 6. - P.857-860. - ISSN 1026-3489
Примечания : Cited References: 9
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Ryabinkina L. I., Abramova G. M., Romanova O. B., Kiselev N. I.
Заглавие : Hall effect in the FexMn1-xS magnetic semiconductors
Место публикации : Phys. Solid State: AMER INST PHYSICS, 2004. - Vol. 46, Is. 6. - P1068-1072. - ISSN 1063-7834, DOI 10.1134/1.1767246
Примечания : Cited References: 17
Предметные рубрики: MAGNETORESISTANCE
FIELDS
MNS
Аннотация: The electrical properties and the Hall effect in the FexMn1-xS magnetic semiconductors (0less than or equal toxless than or equal to0.5) have been experimentally studied in the range 77-300 K in magnetic fields of up to 15 kOe. The cation-substituted sulfides with 0.25less than or equal toxless than or equal to0.3 possessing colossal magnetoresistance (CMR) were established to be narrow-gap semiconductors with carrier concentrations nsimilar to10(11)-10(15) cm(-3) and high carrier mobilities musimilar to 10(2)-10(4) cm(2) V-1 s(-1). It is believed that the CMR effect in these sulfides can be explained in terms of the model of magnetic and electron phase separation, which is analogous to the percolation theory in the case of heavily doped semiconductors. (C) 2004 MAIK "Nauka/Interperiodica".
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10.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Petrakovskii G. A., Loseva G. V., Kiselev N. I., Ovchinnikov S. G., Ivanova N. B., Chernov V. K.
Заглавие : High-tc superconducting phase in the fe1-xs system
Место публикации : JETP Letters. - 1991. - Vol. 54, Is. 4. - P.220-223. - ISSN 0021-3640
Примечания : Cited References: 9
Аннотация: A decrease in the resistivity of Fe1-xS has been observed at a temperature of 110 K. Decreases in the magnetic moment and susceptibility have been observed at 128 K. These decreases indicate the appearance of a superconducting phase with T(c) = 128 K.
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11.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Aplesnin S. S., Petrakovskii G. A., Ryabinkina L. I., Abramova G. M., Kiselev N. I., Romanova O. B.
Заглавие : Influence of magnetic ordering on the resistivity anisotropy of alpha-MnS single crystal
Разночтения заглавия :авие SCOPUS: Influence of magnetic ordering on the resistivity anisotropy of α-MnS single crystal; авие SCOPUS: Influence of magnetic ordering on the resistivity anisotropy of ?-MnS single crystal
Место публикации : Solid State Commun.: PERGAMON-ELSEVIER SCIENCE LTD, 2004. - Vol. 129, Is. 3. - P195-197. - ISSN 0038-1098, DOI 10.1016/j.ssc.2003.09.028; Solid State Commun. - 2004. - Vol. 129, Is. 3. - P195-197. - Вариант Sopus
Примечания : Cited References: 7
Ключевые слова (''Своб.индексиров.''): anisotropy of resistivity--optical gap--d. anisotropy of resistivity--d. optical gap--antiferromagnetism--band structure--bandwidth--diffractometers--electron transitions--fermi level--hamiltonians--light absorption--magnetic anisotropy--magnetization--single crystals--spectroscopic analysis--x ray diffraction analysis--coulomb repulsion--resistivity anisotropy--semiconducting manganese compounds--d. anisotropy of resistivity--d. optical gap--antiferromagnetism--band structure--bandwidth--diffractometers--electron transitions--fermi level--hamiltonians--light absorption--magnetic anisotropy--magnetization--single crystals--spectroscopic analysis--x ray diffraction analysis--coulomb repulsion--resistivity anisotropy--semiconducting manganese compounds
Аннотация: The resistivity and the optical absorbtion spectra of single crystal alpha-MnS are studied in the temperature range 80-300 K along two directions [100] and [111]. Strong anisotropy of the resistivity, and the shift of absorbtion spectra band edge below T 160 K are explained in terms of model involving delocalized holes in 3d-band manganese ions interacting with localized spins by using the sd-model. (C) 2003 Elsevier Ltd. All rights reserved.
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12.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Kiselev N. I., Mankov Yu. I., Pynko V. G.
Заглавие : Transverse magnetoresistance of single-crystal Ni films
Место публикации : Fiz. Tverd. Tela. - 1989. - Vol. 31, Is. 4. - P.243-246. - ISSN 0367-3294
Примечания : Cited References: 7
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13.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : LOSEVA G. V., MUKOED G. M., KLIMENKO A. G., KISELEV N. I.
Заглавие : LOW-TEMPERATURE ANOMALIES OF ELECTRIC AND MAGNETIC-PROPERTIES OF VANADIUM MONOSULFIDE
Место публикации : Fiz. Tverd. Tela: MEZHDUNARODNAYA KNIGA, 1989. - Vol. 31, Is. 8. - P288-289. - ISSN 0367-3294
Примечания : Cited References: 7
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14.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Petrakovskii G. A., Loseva G. V., Mukoed G. M., Kiselev N. I., Baranov A. V.
Заглавие : Low-temperature electrical properties of Me(x)V(1-x)S
Место публикации : Fiz. Tverd. Tela: MEZHDUNARODNAYA KNIGA, 1996. - Vol. 38, Is. 4. - P1012-1016. - ISSN 0367-3294
Примечания : Cited References: 9
Предметные рубрики: DENSITY WAVES
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15.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Petrakovskii G. A., Ryabinkina L. I., Velikanov D. A., Aplesnin S. S., Abramova G. M., Kiselev N. I., Bovina A. F.
Заглавие : Low-temperature electronic and magnetic transitions in the antiferromagnetic semiconductor Cr0.5Mn0.5S
Место публикации : Phys. Solid State: AMER INST PHYSICS, 1999. - Vol. 41, Is. 9. - P1520-1524. - ISSN 1063-7834, DOI 10.1134/1.1131014
Примечания : Cited References: 13
Предметные рубрики:
Аннотация: Experimental-theoretical studies were carried out of the electrical and magnetic properties of the antiferromagnetic semiconductor Cr0.5Mn0.5S in the temperature range 4.2-300 K. A magnetic antiferromagnetic-ferrimagnetic phase transition was observed along with a semimetal- semiconductor electronic transition. Monte Carlo calculations indicate that the changes in the type of magnetic ordering and conductivity are due to the cooperative Jahn-Teller effect caused by the Cr2+ ions. (C) 1999 American Institute of Physics. [S1063-7834(99)02609-X].
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16.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Loseva G. V., Ovchinnikov S. G., Yakubailik E. K., Kiselev N. I., Gaidalova T. A.
Заглавие : Magnetic phases of FexV1-xS and their electronic structure
Место публикации : Phys. Solid State: AMER INST PHYSICS, 1998. - Vol. 40, Is. 10. - P1715-1717. - ISSN 1063-7834, DOI 10.1134/1.1130641
Примечания : Cited References: 10
Аннотация: A study has been made of the FexV1-xS solid solutions with 0 x 0.5. For the compounds with x. 0.1, x-ray diffraction analysis discloses a V5S8 superstructure. Samples with x 0.1 are magnetically ordered at room temperature. The concentration dependences of resistivity and magnetization exhibit sharp peaks for x = 0.1 and x = 0.2, respectively. The main features of the structure and electronic properties have been qualitatively explained in terms of the three-band exciton-insulator model, and the maxima in resistivity and magnetization are assigned to the formation of localized magnetic moments with S = 1, which become delocalized with increasing x. (C) 1998 American Institute of Physics. [S1063-7834(98)02510-6].
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17.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Petrakovskii G. A., Sablina K. A., Vorotinov A. M., Vasiliev V. N., Kruglik A. I., Balaev A. D., Velikanov D. A., Kiselev N. I.
Заглавие : Magnetic, resonance, and electrical-properties of single-crystal and amorphous BI2CuO4
Место публикации : Solid State Commun. - 1991. - Vol. 79, Is. 4. - P.317-320. - ISSN 0038-1098, DOI 10.1016/0038-1098(91)90554-9
Примечания : Cited References: 7
Предметные рубрики: RANGE
Аннотация: Single crystal and amorphous samples Bi2CuO4 were prepared. The magnetic susceptibility, magnetization, magnetic resonance and electrical resistivity measurements for wide range of temperatures and magnetic fields are presented. The anisotropic exchange interactions and 3-d antiferromagnetic behaviour were revealed for single crystal Bi2CuO4. The effective magnetic moments per copper ion were determined. The sharp differences between single crystal and amorphous samples properties were shown.
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18.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Petrakovskii G. A., Loseva G. V., Ryabinkina L. I., Kiselev N. I., Yanushkevich K. I.
Заглавие : Metal-dielectric transition in the system of antiferromagnetic VxMn1-xS semiconductors
Место публикации : Fiz. Tverd. Tela: MEZHDUNARODNAYA KNIGA, 1996. - Vol. 38, Is. 7. - P2131-2134. - ISSN 0367-3294
Примечания : Cited References: 5
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19.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Loseva G. V., Ovchinnikov S. G., Balaev A. D., Kiselev N. I.
Заглавие : Metal-dielectric transitions, magnetism, and electronic structure in a system of manganese-doped vanadium sulfides
Место публикации : Phys. Solid State: AMER INST PHYSICS, 2000. - Vol. 42, Is. 3. - P539-543. - ISSN 1063-7834, DOI 10.1134/1.1131245
Примечания : Cited References: 12
Предметные рубрики: TRANSPORT
Аннотация: The effect of the manganese doping of vanadium monosulfide in a system of the V1-xMnxS (0 x less than or equal to 0.3) solid solutions on their structure and thermal, electrical, and magnetic properties has been investigated. The metal-dielectric transitions are revealed in the studied ranges of concentrations and temperatures. These transitions are accompanied by a change in the magnetic properties. It is demonstrated that the correlation in changes of the electrical and magnetic properties of the sulfides under investigation is characteristic of the metal-dielectric transitions in strongly correlated systems. (C) 2000 MAIK "Nauka/Interperiodica".
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20.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Abramova G. M., Petrakovskii G. A., Vorotynov A. M., Velikanov A. A., Kiselev N. I., Bovina A. F., Szymczak R., Al'mukhametov R. F.
Заглавие : Phase transitions and colossal magnetoresistance in CuVxCr1-xS2 layered disulfides
Разночтения заглавия :авие SCOPUS: Phase transitions and colossal magnetoresistance in CuVxCr 1-x S2 layered disulfides
Место публикации : JETP Letters. - 2006. - Vol. 83, Is. 3. - P.118-121. - ISSN 0021-3640, DOI 10.1134/S0021364006030088
Примечания : Cited References: 10
Предметные рубрики: SULFIDES
Аннотация: New substances CuVxCr1-xS2 are synthesized in which colossal magnetoresistance (T-C = 95 K, delta(H) = -60%, H = 7 kOe), as well as the sequence of phase transitions with change in the conduction type and magnetic order, is observed as temperature is varied. The change found in the magnetic and electric properties of the CuVxCr1-xS2 compounds may be a consequence of a specific disintegration into Cu+Cr+S2 and CU2+Cr2+S2 and a change in the concentration relation between these electronic phases in the substance bulk.
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