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1.
G. V. Loseva L. I. Ryabinkina S. S. Aplesnin A. D. Balaev A. F. Bovina A. M. Vorotynov K. I. Yanushkevich 《Physics of the Solid State》1997,39(8):1267-1270
A study of the structure and electrical and magnetic properties of the VxMn1−x
S disordered system is reported. The existence of a low-temperature metal-insulator transition for Fermi-glass 0.4<x<0.5 compositions in paramagnetic phase, which is accompanied by a change in the structure and magnetic properties, has been
established. An analysis of the magnetic properties permits a conjecture that current carriers become delocalized in these
solid solutions at the metal-insulator transition temperature to form small ferromagnetically ordered regions (ferrons).
Fiz. Tverd. Tela (St. Petersburg) 39, 1428–1431 (August 1997) 相似文献
2.
Aplesnin S. S. Udod L. V. Sitnikov M. N. Molokeev M. S. Tarasova L. S. Yanushkevich K. I. 《Physics of the Solid State》2017,59(11):2268-2273
Physics of the Solid State - The effect of replacing manganese ions on the structural, dielectric, transport, and magnetic properties of Bi2(Sn0.9Mn0.1)2O7 has been studied and the correlation... 相似文献
3.
G. I. Makovetskiĭ A. I. Galyas O. F. Demidenko K. I. Yanushkevich L. I. Ryabinkina O. B. Romanova 《Physics of the Solid State》2008,50(10):1826-1829
This paper reports on the results of investigations into the structural, electrical, and thermoelectrical properties of sulfides Co x Mn1 ? x S (0 ≤ x ≤ 0.4) in the temperature range 80–950 K. It is established that the thermopower coefficient α decreases significantly with an increase in the cobalt concentration in the lattice of the α-MnS compound. The Co x Mn1 ? x S compounds with cobalt concentrations in the range 0 ≤ x ≤ 0.3 are semiconductors with hole conduction (α > 0), whereas the compound with x = 0.4 exhibits metallic conduction (α < 0). It is found that the band gap E g of the compounds under investigation varies in the range from 1.46 eV for α-MnS (x = 0) to 0.26 eV for Co x Mn1 ? x S (x = 0.4). 相似文献
4.
S. S. Aplesnin L. I. Ryabinkina O. B. Romanova V. V. Sokolov A. Yu. Pichugin A. I. Galyas O. F. Demidenko G. I. Makovetski? K. I. Yanushkevich 《Physics of the Solid State》2009,51(4):698-701
The temperature dependences of the specific magnetization σ and the electrical resistivity ρ of Me
x
Mn1 − x
S single crystals (Me= Co, Gd; x= 0.05) have been studied in the temperature range 80 K < T < 1000 K. The samples under study have revealed the presence of a spontaneous magnetic moment below the Néel temperature
(T
N) and ferromagnetic clusters in Gd0.05Mn0.95S in the temperature range 146 K < T < 680 K. Substitution of gadolinium for manganese initiates a transition from p-type to n-type conduction. The change in the conduction type is accompanied by an increase in the electrical resistivity at 300 K by
approximately one order of magnitude and, accordingly, by a decrease in the activation energy. The magnetic and electrical
properties of the crystals under study have been interpreted in terms of the cluster model with temperature-dependent ferromagnetic
exchange and an electron localized in this cluster.
Original Russian Text ? S.S. Aplesnin, L.I. Ryabinkina, O.B. Romanova, V.V. Sokolov, A.Yu. Pichugin, A.I. Galyas, O.F. Demidenko,
G.I. Makovetskiĭ, K.I. Yanushkevich, 2009, published in Fizika Tverdogo Tela, 2009, Vol. 51, No. 4, pp. 661–664. 相似文献
5.
6.
7.
S. S. Aplesnin O. N. Bandurina L. I. Ryabinkina O. B. Romanova E. V. Eremin M. V. Gorev A. M. Vorotynov D. A. Balaev A. D. Vasil’ev A. I. Galyas O. F. Demidenko G. I. Makovetskii K. I. Yanushkevich 《Bulletin of the Russian Academy of Sciences: Physics》2010,74(5):708-710
The coefficients of thermal expansion, lattice constant, and magnetization of anion-substituted MnSe1 - xTex chalcogenides were measured upon cooling in zero and nonzero magnetic fields in the temperature range 4.2–600 K. Resistivity as a function of magnetic field up to 1 T was measured. The dynamic properties of the materials were studied by the ESR method. Magnetoresistance and temperature hysteresis were found in MnSe1 - xTex solid solutions. 相似文献
8.
O.B. Romanova L.I. Ryabinkina V.V. Sokolov A.Yu. Pichugin D.A. Velikanov D.A. Balaev A.I. Galyas O.F. Demidenko G.I. Makovetskii K.I. Yanushkevich 《Solid State Communications》2010,150(13-14):602-604
The structural, magnetic, electrical, and thermoelectric properties of GdXMn1?XS () solid solutions synthesized for the first time on the basis of -MnS have been studied experimentally in the temperature range 77–1000 K in magnetic fields up to 10 kOe. The synthesized samples are antiferromagnetic semiconductors with an NaCl-type cubic lattice typical of -MnS. Both concentration () and temperature () metal–insulator phase transitions have been observed. The concentration metal–insulator transition is accompanied by a decrease in resistivity and thermopower by twelve and two orders of magnitude, respectively, with the change in conductivity from p-type to n-type. 相似文献
9.
Aplesnin S. S. Udod L. V. Sitnikov M. N. Eremin E. V. Molokeev M. S. Tarasova L. S. Yanushkevich K. I. Galyas A. I. 《Physics of the Solid State》2015,57(8):1627-1632
Physics of the Solid State - The correlation of the electrical, magnetic, and structural properties of Bi2(Sn1 − x Cr x )2O7 solid solutions has been investigated for two compositions with x... 相似文献
10.
O. B. Romanova S. S. Aplesnin K. I. Yanushkevich V. V. Sokolov 《Bulletin of the Russian Academy of Sciences: Physics》2016,80(6):679-681
New antiferromagnetic semiconductor compounds TmxMn1–xS (0 ≤ x ≤ 0.15) with an NaCl-type FCC lattice are synthesized, and their structural, magnetic, and electrical properties are investigated at temperatures of 80–1100 K in magnetic fields of up to 10 kOe. Anomalies in the temperature dependence of resistivity in the region of magnetic transition are observed. The activation energy of the synthesized compounds is found and shown to grow along with the concentration of a substitute. 相似文献