67 Result(s)

Article

Role of the Cluster Structure of Amorphous Fe₆₇Cr₁₈B₁₅ Alloy in Magnetism and in the Changing of Electron Scattering Mechanisms under the Influence of Ion (Ar⁺) Irradiation

The contribution of clusters of different sizes to magnetism and the switching of electron scattering mechanisms in amorphous Fe₆₇Cr₁₈B₁₅ alloy during ion Ar⁺ irradiation is studied. The cluster magnetism is foun...

V. D. Okunev, Z. A. Samoilenko, R. Szymczak… in Journal of Experimental and Theoretical Ph… (2018)

Chapter and Conference Paper

Magnetic Interactions and Magnetotransport in Ge_1-X TM _x Te Diluted Magnetic Semiconductors

Diluted magnetic semiconductors (DMS) allows an independent control of electrical and magnetic properties by many orders of magnitude via changes in the technological parameters of the growth or post growth tr...

L. Kilanski, R. Szymczak, E. Dynowska… in Proceedings of the III Advanced Ceramics a… (2016)

Article

Effect of gas–liquid–crystal transitions in oxygen clusters on electric and magnetic activity of localized states in In₂O₃–SrO ceramic

It has been shown that the overlap of tails of the density of states of the valence and conduction bands leads to the formation of a “negative” gap in the In₂O₃–SrO ceramic with disordered structure and oxygen cl...

V. D. Okunev, R. Szymczak, H. Szymczak, P. Aleshkevych, A. B. Glot… in JETP Letters (2015)

Article

Study of magnetic properties of two samples from FeVO₄-Co₃V₂O₈ system

Two samples containing phases formed in the FeVO₄-Co₃V₂O₈ system were prepared by a conventional sintering method. The sample designated as H5 was one-phase with the howardevansite-type structure, while the sampl...

N. Guskos, G. Zolnierkiewicz, J. Typek, R. Szymczak, A. Guskos… in Materials Science-Poland (2013)

Article

Magnetocaloric effect in manganites

The magnetocaloric effect (MCE) in La_{1 − x} Sr _x MnO₃, Sm_0.55Sr_0.45MnO₃, and PrBaMn₂O₆ compounds is studied. The maximum values of MCE (ΔT _max) det...

L. I. Koroleva, D. M. Zashchirinskii… in Journal of Experimental and Theoretical Ph… (2012)

Article

Study of magnetic inhomogeneity in β-Cu₃Fe₄V₆O₂₄

The temperature dependence of dc magnetization and electron paramagnetic resonance (EPR) spectra of the β-Cu₃Fe₄V₆O₂₄ multicomponent vanadate were investigated. Dc magnetic measurements showed the presence of str...

N. Guskos, G. Zolnierkiewicz, J. Typek, R. Szymczak… in Materials Science-Poland (2012)

Article

Effect of flux clusterization on the thickness of films deposited by magnetron and pulsed laser sputtering of metal oxides

We have studied the relation between clusterization in the flux of a substance and the thickness of deposited films obtained by the magnetron and pulsed laser sputtering of La_0.7Sr_0.3MnO₃ and YBa₂Cu₃O_{7 − δ} target...

V. D. Okunev, S. J. Lewandowski, R. Szymczak, H. Szymczak… in Technical Physics Letters (2012)

Article

Magnetic and EPR studies of the EuFe₃(BO₃)₄ single crystal

Magnetic and electron paramagnetic resonance (EPR) properties of EuFe₃(BO₃)₄ single crystals have been studied over the temperature range of 300–4.2 K and in a magnetic field up to 5 T. The temperature, field an...

V. P. Dyakonov, R. Szymczak, A. D. Prokhorov, E. Zubov… in The European Physical Journal B (2010)

Article

Ion-Implantation Control of Ferromagnetism in (Ga,Mn)As Epitaxial Layers

Epitaxial layers of (Ga,Mn)As ferromagnetic semiconductor have been subjected to low-energy ion implantation by applying a very low fluence of either chemically active, oxygen ions or inactive ions of neon nob...

O. Yastrubchak, J. Z. Domagala, J. Sadowski, M. Kulik… in Journal of Electronic Materials (2010)

Article

Magnetic, electrical, magnetoelectrical, and magnetoelastic properties of La_0.9Sr_0.1MnO_{3 − y} manganites

This paper reports on a study of the influence of oxygen deficiency on the magnetization, paramagnetic susceptibility, electrical resistivity, magnetoresistance, and volume magnetostriction of the La_0.9Sr_0.1MnO_{3 ...}

L. I. Koroleva, D. M. Zashchirinskiĭ, T. M. Khapaeva… in Physics of the Solid State (2010)

Article

Crystal and magnetic structures of the Bi_{1 − x} Sr _x FeO_{3 − δ} and Bi_{1 − x} A _x Fe_{1 − x} Mn _x O₃ (A = Sr, Ca) solid solutions

Bi_{1 − x} Sr _x FeO_{3 − x/2} (I), Bi_{1 − x} Sr _x Fe_{1 − x} MnxO₃ (II), and Bi_{1 −}

I. O. Troyanchuk, D. V. Karpinskiĭ, M. V. Bushinskiĭ… in Crystallography Reports (2009)

Article

Magnetic and electric properties of manganese-doped ZnSiAs₂

A new p-type dilute magnetic semiconductor was synthesized on the basis of manganese-doped ZnSiAs₂ chalcopyrite. As the manganese percentage in ZnSiAs₂ increased, the Curie temperature increased from 325 to 337 K...

V. M. Novotortsev, S. F. Marenkin, L. I. Koroleva… in Russian Journal of Inorganic Chemistry (2009)

Article

Manganese-doped ZnSiAs₂ chalcopyrite: A new advanced material for spintronics

A new spintronics material with the Curie temperature above room temperature, the ZnSiAs₂ chalcopyrite doped with 1 and 2 wt % Mn, is synthesized. The magnetization, electrical resistivity, magnetoresistance, and...

L. I. Koroleva, D. M. Zashchirinskiĭ, T. M. Khapaeva… in Physics of the Solid State (2009)

Article

Effect of oxygen deficiency on the magnetic, electrical, magnetoelectric, and magnetoelastic properties of La_{1 − x} Sr _x MnO_{3 − δ} manganites

This paper reports on a study of the effect of oxygen deficiency on the magnetic and electrical properties of the La_{1 − x} Sr _x MnO_{3 − δ} manganites (x = 0,...

L. I. Koroleva, D. M. Zashchirinskiĭ, T. M. Khapaeva… in Physics of the Solid State (2008)

Article

Single-crystal growth of trigonal DyFe₃(BO₃)₄ and study of magnetic properties

Fluxes with a wide stability range of trigonal DyFe₃(BO₃)₄ were selected by the successive-approximation method using direct phase probing in the Bi₂Mo₃O₁₂-B₂O₃-Dy₂O₃-Fe₂O₃ system. Crystallization parameters of t...

I. A. Gudim, A. I. Pankrats, E. I. Durnaĭkin, G. A. Petrakovskiĭ… in Crystallography Reports (2008)

Article

Effect of the self-organized cluster structure in LaSrMnO films on the slope of the temperature dependence of resistivity

We have studied the effect of atomic ordering in a nanodimensional clustered structure of amorphous LaSrMnO films on the slope of the temperature dependence of resistivity ρ(T) in the regions where dρ/dT > 0. It ...

Z. A. Samoilenko, V. D. Okunev, E. I. Pushenko, N. N. Pafomov… in Technical Physics Letters (2008)

Article

Crystal-structure and magnetic phase transformations in solid solutions of BiFeO₃-AFe_0.5Nb_0.5O₃ (A = Ca, Sr, Ba, Pb)

Solid solutions of Bi_{1 − x} A _x (Fe_{1 − x/2}Nb _x/2)O₃, where A = Ca, Ba, and Pb, are obtained and their crystal structure and magn...

I. O. Troyanchuk, M. V. Bushinsky… in Journal of Experimental and Theoretical Ph… (2008)

Article

Negative magnetization in La_0.75Nd_0.25CrO₃ perovskite

V. A. Khomchenko, I. O. Troyanchuk, R. Szymczak… in Journal of Materials Science (2008)