The initial oxidation behaviour of a Co–20%Ni alloy exposed to air and the longer term oxidation of a metalevaporated magnetic recording tape MET of the same composition have been studied using XPS and AES. Air exposure of the alloy for 24 h showed the formation of a mixed hydroxide/carbonate layer over a relatively small amount of oxide. All issues of MRS Online Proceedings Library OPL. Synthesis and Magnetic Properties of Oxide Nanocomposites and Heterostructures Archive content. 2014. Volume 1516 - Symposium JJ – Intermetallic-Based Alloys—Science, Technology and Applications Archive content. 2013.
Using a unique combination of template-based synthesis methods involving anodization, electroplating, and selective oxidation, we have synthesized engineered metal–oxide–metal MOM heterojunction nanowires in the Au–SnO 2 –Au and Au–NiO–Au systems for possible use in nanoelectronics. The template-based synthesis method used here is generic, and it has the potential to provide. Jan 01, 2019 · Diluted magnetic semiconductor based on Ni-doped TiO 2 has been synthesized by hydrothermal process and effect of Ni doping on structure, morphology and magnetic studies were investigated. X-ray Rietveld analysis confirmed that all the samples were TiO 2 anatase structure without having any impurity phase. The lattice parameter and cell volume increased in Ni-doped TiO 2. MRS, the Materials Research Society, offers materials science journals, materials science meetings, and materials science outreach to an international, interdisciplinary science community.
Gallium oxide belongs to the group III oxides and has a bandgap E g of about 4.8 eV and intermediate free carrier concentration of ∼10 14 –15 × 10 18 cm 3 see Table 14.1. It is the widest bandgap transparent semiconducting oxide. Volume 82 April - June 2017. June 2017, issue 3; May 2017, issue 2; April 2017, issue 1; Volume 81 January - March 2017. March 2017, issue 3; February 2017, issue 2. Special Issue: E-MRS Spring Meeting 2016, Symposium AA: Solution Processing and Properties of Functional Oxide Thin Films and Nanostructures II. Strain can have a dramatic effect on the properties of materials. Zhang et al. introduced a large strain in the material PbTiO3 by growing it epitaxially in a composite with PbO. On the boundaries between the two materials, their normally different lattice constants were matched, giving rise to the strain. As a consequence, the films exhibited a very large electric polarization even in the. Volume 50, Issue 2. Short Note. The influence of the composition and thermal treatment on the cation redistribution in the Mg x Fe 3−x O 4 system M.‐L. Craus. Center of Technical Physics, Iassy. Search for more papers by this author. N. Rezlescu. Center of Technical Physics, Iassy.
Magnetic Fe3O4 nanoparticles NPs and their surface modification with therapeutic substances are of great interest, especially drug delivery for cancer therapy, including boron-neutron capture therapy BNCT. In this paper, we present the results of boron-rich compound carborane borate attachment to previously aminated by 3-aminopropyl-trimethoxysilane APTMS iron oxide NPs. Science and Technology of Advanced Materials is the leading open access, international journal covering a broad spectrum of materials science research including functional materials, synthesis and processing, theoretical analyses, characterization and properties of materials. Emphasis is placed on the interdisciplinary nature of materials science and issues at the forefront of the field, such. Jan 04, 1997 · Science and technology of magnetic oxides: symposium held December 1-4, 1997, Boston, Massachusetts, U.S.A. Aug 01, 2005 · Fig. 1A shows a typical low-magnification SEM image of SnO 2 hollow microspheres. These microspheres have diameters in the range of 0.5–1 μm. Some of them aggregate together. In a high-magnification SEM image Fig. 1B, it is clear that SnO 2 microsphere is composed of SnO 2 nanoparticles with diameters of about 15 nm.Typical SEM images of some broken SnO 2 hollow.
Mar 03, 2020 · Journal of Sol-Gel Science and Technology. All Volumes & Issues. Volume 93, Issue 3, March 2020. coupling effect between oxides. Original Paper: Sol-gel and hybrid materials for dielectric, electronic, magnetic and ferroelectric applications. Volume 197, 8 September 2020, 108246. To date, rich categories of MA agents such as magnetic oxides [5,6], conducting polymers,. Grant No. 2019Q009, and Key Program for International Science and Technology Cooperation Projects of Ministry of Science and Technology of China.
A new type of lanthanide transition metal pnictide-oxide, Ln 3 Cu 4 P 4 O 2 for Ln = La, Ce, and Nd, is reported. The crystal structure is made from Ln 2 O 2 layers of the Pb 2 O 2 type stacked with layers of Cu 2 P 2 tetrahedra. The existence of a homologous series of compounds with similar chemistry connecting the BiCuOSe and ThCr 2 Si 2 structure types is indicated. The resistivity of La. Gallium-doped zinc oxide powders have been prepared with electrical conductivities at 25 °C as high as 300 Ω-1 cm-1, more than 1000 higher than previously reported. All materials prepared can be represented as Zn1-xGaxO, Zn1-yGayO1y/2, or a combination of these two. For Zn1-xGaxO, the room-temperature conductivity increases monotonically with increasing x up to 2.7%, which is the limit of. Electronic and magnetic properties of the CuO 4 - and Co 2 CuO 10 -complexes in diluted magnetic semiconductors and transition metal oxides. Materials Research Express 2019, 6 8, 086108. His current research interests include material sciences focused on metal oxides, surface science, and the design of thin film gas sensors and thermoelectric convertors$1.Dr. G. Korotcenkov is either the author or editor of 39 books, published by Momentum Press, CRC Press, Springer USA and Harbin Institute of Technology Press China. Investigation of wide bandgap semiconductor for thermoelectric applications, MRS Proceedings, 1490, pp 161-166. Thermoelectric properties of undoped and si-doped bulk GaN, MRS Spring online Proceeding, 1558, mrss 13-1558-09-03. Spin Seebeck Effect in Gd Doped GaN Thin Films, MRS online Proceeding,s 1329, mrss:11-1329-i07-02.
Immobilization of oligonucleotide-functionalized magnetic nanobeads in DNA-coils studied by electron microscopy and atomic force microscopy. MRS Proceedings 2011, 1355 DOI: 10.1557/opl.2011.1135. Juan Yan, Shiping Song, Bing Li, Qingzhi Zhang, Qing Huang, Hua Zhang, Chunhai Fan. Journal of Materials Science and Technology aims to enhance the international exchange of scientific activities in materials science and technology. The Journals reports principally the achievements of materials science and engineering all over the world, putting the stress on the original research papers, review articles invited by editor, letters, research notes with novelty as well as.
Fan is a Fellow of MRS and APS, and has been recognized for his contributions to materials science with some of the highest honors in materials research, including the MRS Mid-Career Researcher Award 2019, MRS Kavli Distinguished Lectureship Award in Nanoscience 2015, three Federal Laboratory Consortium - Outstanding Technology Development. The manganese oxides of general formula RE 1−x M x MnO 3 RE = rare earth, M = Ca, Sr, Ba, Pb have remarkable interrelated structural, magnetic and transport properties induced by the mixed valence 3– 4of the Mn ions.In particular, they exhibit very large negative magnetoresistance, called colossal magnetoresistance CMR, in the vicinity of metal–insulator transition for. Sensors based on zinc oxide ZnO, titanium dioxide TiO 2, tungsten trioxide WO 3, copper oxide CuO and Cu 2 O, tin oxide SnO and SnO 2 and vanadium oxide VO 2 and V 2 O 5, either as nanoparticles or as continuous films or layers, are described. Their sensing properties are correlated to size, shape, presence of defects and doping.
Sep 01, 2019 · The magnetic ferric oxide ions, which are ferromagnetic in nature, are termed as ferrites. Generally, the chemical formula of ferrite is MFe 2 O 4, where M denotes the divalent metal ion, such as Ba 2, Zn 2, Fe 2, Mg 2, Ni 2, Cd 2, and Cu 2. Ferrites have magnetic domains of spontaneous nature. They obey the law of magnetic saturation. Abstract The study of doped and undoped La1-xMxMnO3 single crystals [x= O to 0.3] in the temperature range from 5 K to 423 K is reported. The activity of phonon vibrational modes in optical spectra is analyzed and a comparison to experimental Raman data is presented.
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