Перегляд за автором "Sirenko, V.A."

Результати 1-12 з 12

Antiferromagnet–ferromagnet phase transition in lightly doped manganites

Troyanchuk, I.O.; Khomchenko, V.A.; Eremenko, V.V.; Sirenko, V.A.; Szymczak, H. (Физика низких температур, 2005)

Magnetic and structural phase diagrams of the La₀.₈₈MnOx, La₁₋xSrx(Mn₁₋x/₂Nbx/₂)O₃, Nd₁₋xCaxMnO₃, and Bi₁₋xCaxMnO₃ series constructed on the basis of x-ray, neutron powder diffraction, Young’s modulus, magnetization and ...
Antiferromagnet-ferromagnet transition in La₁–xSrxMn₀.₅Ni₀.₅O₃ (0 ≤ x ≤ 0.2) ceramics

Troyanchuk, I.O.; Karpinsky, D.V.; Bushinsky, M.V.; Sirenko, V.A.; Sikolenko, V.V.; Franz, A. (Физика низких температур, 2017)

Ceramics samples of La₁–xSrxMn₀.₅Ni₀.₅O₃ (0 ≤ x ≤ 0.2) with perovskite structure have been studied by neutron diffraction method, magnetometry and magnetoresistance measurements. Structural data testify a partial order of ...
Antiferromagnet–ferromagnet transition in the cobaltites

Troyanchuk, I.O.; Bushinsky, M.V.; Karpinsky, D.V.; Sirenko, V.A. (Физика низких температур, 2012)

The three series oxygen-deficient cobaltites La₀.₅Ba₀.₅CoO₃₋δ, LnBaCo₂O₅.₅ and Sr₂YCo₄O₁₀.₅ have been studied. It has been shown that La₀.₅Ba₀.₅CoO₃ is an insulating ferromagnet whereas La₀.₅Ba₀.₅CoO₂.₇₅ is a pure anti ...
Effect of oxygen content on magnetization and magnetoresistance properties of CMR manganites

Trukhanov, S.V.; Troyanchuk, I.O.; Korshunov, F.P.; Sirenko, V.A.; Szymczak, H.; Baerner, K. (Физика низких температур, 2001)

The influence of oxygen content on the magnetization and electrical resistivity of Ln₀.₅A₀.₅MnO₃ (Ln=La,Pr,Nd; A=Ca,Ba) manganites with the perovskite structure is investigated. It is shown that the La₀.₅Ca₀.₅MnO₃₋γ compound ...
Effect of step-edge on spectral properties and planar stability of metallic bigraphene

Eremenko, V.V.; Sirenko, V.A.; Gospodarev, I.A.; Syrkin, E.S.; Feodosyev, S.B.; Bondar, I.S.; Saxena, S.S.; Feher, A.; Minakova, K.A. (Физика низких температур, 2016)

Phonon and electron spectra of metallic bigraphene are analyzed in the presence of step-edge crystal imperfection. Different geometries of step-edge are considered. The dynamic planar stability of the considered structure ...
Investigation of magnetic flux gradients in hard superconductors

Bruk, V.V.; Eremenko, V.V.; Makedonskaya, N.I.; Shabakayeva, Yu.A.; Sirenko, V.A. (Физика низких температур, 2001)

Analytical calculations of the transverse magnetostriction in a thin hard superconductor are presented in relation to the distributions of currents and fields within a superconducting specimen in a varied magnetic field. ...
Irreversible magnetostriction and magnetization of the superconduting 2H-NbSe₂ single crystals in a peak-effect regime

Eremenko, V.V.; Sirenko, V.A.; Shabakayeva, Yu.A.; Gammel, P.L. (Физика низких температур, 2002)

Magnetostriction mea sure ments in the mixed state of superconducting 2H-NbSe₂ single crystals under in-plane magnetic fields 0-12 T have revealed a peak on the magnetostriction versus magnetic field dependences in the ...
Magnetostriction in the mixed state of superconducting 2H-NbSe₂ single crystals

Eremenko, V.V.; Sirenko, V.A.; Schleser, R.; Gammel, P.L. (Физика низких температур, 2001)

Magnetostriction measurements on 2H-NbSe₂ single crystals in the temperature range 1.5-8 K in a magnetic field up to 14 T are reported. Peak and oscillations in the measured field dependences of magnetostriction were ...
NATO advanced study institute "Modern Trends in Magnetostriction Study and Application"

Eremenko, V.V.; Sirenko, V.A.; Gibbs, M.R.J.; Szymczak, H. (Физика низких температур, 2000)
Negative thermal expansion of HTSC-type structures: low temperature structure measurements on Eu₁₊x(Ba₁₋yRy) ₂₋xCu₃O₇₋d compounds and theoretical treatment

Eremenko, V.V.; Feodosyev, S.B.; Gospodarev, I.A.; Sirenko, V.A.; Shvedun, M.Yu.; McCallum, W.; Tovar, M. (Физика низких температур, 2005)

The temperature dependences of the lattice parameters were investigated on the perovskite-like structures Eu₁₊x(Ba₁₋yRy) ₂₋xCu₃O₇₋d with Ba substitution by light rare earth, using x-ray diffraction techniques. A negative ...
On the transverse magnetization of the anisotropic superconductor 2H-NbSe₂

Sirenko, V.A.; Makedonska, N.I.; Shabakayeva, Yu. A. (Физика низких температур, 2002)

Torque measurements were performed on a high-quality single crystal of the uniaxial superconductor 2H-NbSe₂ in a tilted magnetic field 0–200 kG, in the temperature range 1.5–4.2 K. The transverse component of the absolute ...
The influence of point defects on the temperature dependence of quasi-two-dimensional 2H-NbSe₂ resistivity

Mamalui, A.A.; Shelest, T.N.; Fatyanova, N.B.; Sirenko, V.A. (Functional Materials, 2005)

The processes of point defects forming in quasi-two-dimensional 2H-NbSe₂ crystals were studied experimentally by measuring the temperature-time resistivity dependencies in the temperature range 300-500 K. It is found out ...

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Перегляд за автором "Sirenko, V.A."

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