Morphology and magnetic properties of nanocomposite magnetic multilayers [(Co(4)oFe(40)B(2)O)(34)(SiO2)(66)]/[C](47)

Ukleev, V.BP Konstantinov Petersburg Nucl Phys Inst, Natl Res Ctr, Kurchatov Inst, Gatchina 188300, Russia.;Russian Acad Sci, St Petersburg Acad Univ Nanotechnol Res & Educ, St Petersburg 194021, Russia. (författare)

We report on the investigation of morphology, magnetic and conductive properties of the mutilayered nanostructures [(Co40Fe40B20)(34)(SiO2)(66)]/[C](47) consisting of the contacting magnetic (Co Fe-40 (40) B (20)) (34)(SiO2)(66) nanocomposite and amorphous semiconductor carbon C layers. It is shown by Grazing-Incidence Small-Angle X-ray Scattering method that the ordering and the size of nanoparticles in the magnetic layers do not change profoundly with increasing of carbon layer thickness. Meanwhile, the electrical conductance and the magnetic properties are significantly varied: resistance of the samples changes by four orders of magnitude and superparamagnetic blocking temperature changes from 15 K to 7 K with the increment of carbon layer thickness h(c) from 0.4 nm to 1.8 nm. We assume that the formation of the homogeneous semiconductor interlayer leads to modification of the metal-insulator growth process that drives the changes in the magnetic and conductive properties.

Dyadkina, E.BP Konstantinov Petersburg Nucl Phys Inst, Natl Res Ctr, Kurchatov Inst, Gatchina 188300, Russia. (författare)
Vorobiev, AlexeyUppsala universitet,Materialfysik(Swepub:uu)alevo690 (författare)
Gerashchenko, O. V.BP Konstantinov Petersburg Nucl Phys Inst, Natl Res Ctr, Kurchatov Inst, Gatchina 188300, Russia. (författare)
Caron, L.Delft Univ Technol, NL-2628 CN Delft, Netherlands.;Max Planck Inst Chem Phys Solids, D-01187 Dresden, Germany. (författare)
Sitnikov, A. V.Voronezh State Tech Univ, Voronezh 394026, Russia. (författare)
Kalinin, Yu. E.Voronezh State Tech Univ, Voronezh 394026, Russia. (författare)
Grigoriev, S. V.BP Konstantinov Petersburg Nucl Phys Inst, Natl Res Ctr, Kurchatov Inst, Gatchina 188300, Russia.;St Petersburg State Univ, St Petersburg 198904, Russia. (författare)
BP Konstantinov Petersburg Nucl Phys Inst, Natl Res Ctr, Kurchatov Inst, Gatchina 188300, Russia.;Russian Acad Sci, St Petersburg Acad Univ Nanotechnol Res & Educ, St Petersburg 194021, Russia.BP Konstantinov Petersburg Nucl Phys Inst, Natl Res Ctr, Kurchatov Inst, Gatchina 188300, Russia. (creator_code:org_t)

Ingår i:Journal of Non-Crystalline Solids: Elsevier BV432, s. 499-5040022-30931873-4812

Av författaren/redakt...: Ukleev, V.; Dyadkina, E.; Vorobiev, Alexey; Gerashchenko, O. ...; Caron, L.; Sitnikov, A. V.; visa fler...; Kalinin, Yu. E.; Grigoriev, S. V.; visa färre...

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