Sökning: onr:"swepub:oai:DiVA.org:uu-494652" > Mesostructure and M...
Fältnamn | Indikatorer | Metadata |
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000 | 03586naa a2200433 4500 | |
001 | oai:DiVA.org:uu-494652 | |
003 | SwePub | |
008 | 230119s2022 | |||||||||||000 ||eng| | |
024 | 7 | a https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-4946522 URI |
024 | 7 | a https://doi.org/10.3390/magnetochemistry81201672 DOI |
040 | a (SwePub)uu | |
041 | a engb eng | |
042 | 9 SwePub | |
072 | 7 | a ref2 swepub-contenttype |
072 | 7 | a art2 swepub-publicationtype |
100 | 1 | a Grigoryeva, Natalia A.u St Petersburg State Univ, Dept Phys, St Petersburg 198504, Russia.4 aut |
245 | 1 0 | a Mesostructure and Magnetic Properties of SiO2-Co Granular Film on Silicon Substrate |
264 | c 2022-11-24 | |
264 | 1 | b MDPI,c 2022 |
338 | a electronic2 rdacarrier | |
520 | a Granular films SiO2(Co) exhibit unusual magnetic and magnetotransport properties which are strongly dependent on the composition of the film and material of a substrate. For example, the injection magnetoresistance (IMR) coefficient reaches a giant (GIMR) value of 10(5)% at room temperature in SiO2(Co) films on an n-GaAs substrate. However, the IMR effect is negligible in the case of a similar granular film deposited on the n-Si substrate. In this report, the structural and magnetic properties of granular film SiO2(Co) on Si substrate are studied with the aim to understand the cause of the difference in IMR coefficients for SiO2(Co) thin film deposited on n-GaAs and on n-Si substrates. Investigations were carried out using complementary methods of Polarized Neutron Reflectometry, Grazing Incidence Small-Angle X-ray Scattering, X-ray Reflectometry, Scanning Electron Microscope, and SQUID magnetometry. It is shown that the interface layer between the granular film and Si substrate exhibits metallic rather than magnetic properties and eliminates the GIMR effect. This interface layer is associated with the Si diffusion to Co nanoparticles and the formation of the metallic cobalt silicides. | |
650 | 7 | a NATURVETENSKAPx Fysikx Den kondenserade materiens fysik0 (SwePub)103042 hsv//swe |
650 | 7 | a NATURAL SCIENCESx Physical Sciencesx Condensed Matter Physics0 (SwePub)103042 hsv//eng |
653 | a granular film | |
653 | a nanoparticles | |
653 | a grazing-incidence small-angle X-ray scattering | |
653 | a polarized neutron reflectometry | |
700 | 1 | a Ukleev, Victoru Paul Scherrer Inst, Lab Neutron Scattering & Imaging, CH-5232 Villigen, Switzerland.4 aut |
700 | 1 | a Vorobiev, Alexeiu Uppsala universitet,Materialfysik4 aut0 (Swepub:uu)alevo690 |
700 | 1 | a Stognij, Alexander I.u Natl Acad Sci Belarus, Sci & Pract Mat Res Ctr, BY-220072 Minsk, BELARUS.4 aut |
700 | 1 | a Novitskii, Nikolay N.u Natl Acad Sci Belarus, Sci & Pract Mat Res Ctr, BY-220072 Minsk, BELARUS.4 aut |
700 | 1 | a Lutsev, Leonid V.u Russian Acad Sci, Ioffe Phys Tech Inst, St Petersburg 194021, Russia.4 aut |
700 | 1 | a Grigoriev, Sergey V.u Kurchatov Inst, Petersburg Nucl Phys Inst NRC, St Petersburg 188300, Russia.4 aut |
710 | 2 | a St Petersburg State Univ, Dept Phys, St Petersburg 198504, Russia.b Paul Scherrer Inst, Lab Neutron Scattering & Imaging, CH-5232 Villigen, Switzerland.4 org |
773 | 0 | t MAGNETOCHEMISTRYd : MDPIg 8:12q 8:12x 2312-7481 |
856 | 4 | u https://doi.org/10.3390/magnetochemistry8120167y Fulltext |
856 | 4 | u https://uu.diva-portal.org/smash/get/diva2:1728991/FULLTEXT01.pdfx primaryx Raw objecty fulltext:print |
856 | 4 8 | u https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-494652 |
856 | 4 8 | u https://doi.org/10.3390/magnetochemistry8120167 |
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