Scientific and Technical Aerospace Reports

Scientific and Technical Aerospace Reports PDF Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 816

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Book Description
Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.

Scientific and Technical Aerospace Reports

Scientific and Technical Aerospace Reports PDF Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 816

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Book Description
Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.

Commencement Program

Commencement Program PDF Author: Iowa State University
Publisher:
ISBN:
Category : Commencement ceremonies
Languages : en
Pages : 382

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Structure, Magnetism, and Colossal Magnetoresistance of the Ternary Rare Earth Transition Metal Zintl Compounds

Structure, Magnetism, and Colossal Magnetoresistance of the Ternary Rare Earth Transition Metal Zintl Compounds PDF Author: Hyungrak Kim
Publisher:
ISBN:
Category :
Languages : en
Pages : 306

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Superconductivity, Magnetism and Structural Study of Some New Ternary Transition Metal Borides

Superconductivity, Magnetism and Structural Study of Some New Ternary Transition Metal Borides PDF Author: Huan-chiu Ku
Publisher:
ISBN:
Category : Borides
Languages : en
Pages : 276

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Rare Earth Transition Metal Borocarbides (Nitrides)

Rare Earth Transition Metal Borocarbides (Nitrides) PDF Author: Karl-Hartmut Müller
Publisher: Springer Science & Business Media
ISBN: 9401007632
Category : Science
Languages : en
Pages : 455

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Book Description
This volume contains most of the contributions presented at the NATO Advanced Research Workshop on Rare Earth Transition Metal Borocarbides (Nitrides): Superconducting, Magnetic and Normal State Properties, held in Dresden, Germany at 13 - 18 June 2000. The Workshop was chaired by K. -H. MUller and V. N. Narozhnyi. This was the first meeting specially focused on the quaternary rare-earth transition-metal borocarbides and nitrides - a new class of magnetic superconductors discovered in 1994. The motivation for organizing this workshop was to bring together scientists (both experimentalists and theoreticians), actively working in this field in different countries, using different methods, to exchange their points of view on the properties ofthese materials and to recognize the directions for future research. Totally 48 participants from 17 countries ofEurope, the United States, BraZil, India, Israel and Japan took part in this meeting. In addition about 15 observers (mainly from Germany) attended. The scientific Programme of the Workshop was composed of 7 sections. The section Introduction and Overview was followed by the Electronic Structure and Properties and Phonon Spectra; Magnetic Properties and CEF Effects; Interplay between Superconductivity and Magnetism; Vortex Lattice; Thin Films; Nature of the Superconducting State in Borocarbides sections. Totally 50 presentations were given (45 ofthem in oral form). Considerable attention was devoted to the characterization of the particular place of borocarbides amongst the other magnetic and superconducting systems and, especially, magnetic superconductors.

Study of New Ternary Rare-Earth Intermetallic Germanides with Polar Covalent Bonding

Study of New Ternary Rare-Earth Intermetallic Germanides with Polar Covalent Bonding PDF Author: Riccardo Freccero
Publisher: Springer Nature
ISBN: 3030589927
Category : Technology & Engineering
Languages : en
Pages : 221

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Book Description
The thesis focuses on the syntheses, structural characterizations and chemical bonding analyses for several ternary R–M–Ge (R = rare earth metal; M = another metal) intermetallics. The challenges in understanding the main interactions governing the chemistry of these compounds, which lead to our inability to predict their formation, structure and properties, are what provided the motivation for this study. In particular, the R2MGe6 (M = Li, Mg, Al, Cu, Zn, Pd, Ag), R4MGe10-x (M = Li, Mg), R2Pd3Ge5, Lu5Pd4Ge8, Lu3Pd4Ge4 and Yb2PdGe3 phases were synthesized and structurally characterized. Much effort was put into the stabilization of metastable phases, employing the innovative metal flux method, and into the accurate structure solution of twinned crystals. Cutting-edge position-space chemical bonding techniques were combined with new methodologies conceived to correctly describe the Ge–M, Ge–La and also La–M polar-covalent interactions for the La2MGe6 (M = Li, Mg, Al, Cu, Zn, Pd, Ag) series. The present results constitute a step forward in our comprehension of ternary germanide chemistry as well as providing a good playground for further investigations.

Solid Compounds of Transition Elements I

Solid Compounds of Transition Elements I PDF Author: Jean Louis Bobet
Publisher: Trans Tech Publications Ltd
ISBN: 3038135097
Category : Technology & Engineering
Languages : en
Pages : 325

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Book Description
Selected, peer reviewed papers from the 17th International Conference on Solid Compounds of Transition Elements, (SCTE 2010), Sept. 5 – 10th , 2010, Annecy, France

Structure, Magnetism, and Magnetoresistance of Ternary Zintl Phases in the Eu-In-P System

Structure, Magnetism, and Magnetoresistance of Ternary Zintl Phases in the Eu-In-P System PDF Author: Jiong Jiang
Publisher:
ISBN:
Category :
Languages : en
Pages : 252

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Magnetic Properties of Layered Transition Metal Compounds

Magnetic Properties of Layered Transition Metal Compounds PDF Author: L.J. de Jongh
Publisher: Springer Science & Business Media
ISBN: 9400918607
Category : Science
Languages : en
Pages : 430

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Book Description
In the last two decades low-dimensional (low-d) physics has matured into a major branch of science. Quite generally we may define a system with restricted dimensionality d as an object that is infinite only in one or two spatial directions (d = 1 and 2). Such a definition comprises isolated single chains or layers, but also fibres and thin layers (films) of varying but finite thickness. Clearly, a multitude of physical phenomena, notably in solid state physics, fall into these categories. As examples, we may mention: • Magnetic chains or layers (thin-film technology). • Metallic films (homogeneous or heterogeneous, crystalline, amorphous or microcristalline, etc.). • I-d or 2-d conductors and superconductors. • Intercalated systems. • 2-d electron gases (electrons on helium, semiconductor interfaces). • Surface layer problems (2-d melting of monolayers of noble gases on a substrate, surface problems in general). • Superfluid films of ~He or 'He. • Polymer physics. • Organic and inorganic chain conductors, superionic conductors. • I-d or 2-d molecular crystals and liquid crystals. • I-d or 2-d ferro- and antiferro electrics.

Electronically highly correlated ternary transition metal oxides

Electronically highly correlated ternary transition metal oxides PDF Author: Alexander Krimmel
Publisher: diplom.de
ISBN: 3832486925
Category : Science
Languages : en
Pages : 124

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Book Description
Introduction: Transition metal oxides represent a large class of compounds with a uniquely wide range of electronic properties. Some of these properties, like the magnetism of loadstone, have been known since antiquity. Others, like high-temperature superconductivity have been discovered only recently and indeed would have been thought of being impossible 20 years ago. Transition metal oxides may be good insulators, semiconductors, metals or superconductors. Many of them display a metal-to-insulator transition (MIT) as a function of an external control parameter (usually temperature, pressure or chemical composition). The differences of electrical conductivity are also reflected by drastic changes of other physical properties related to the electronic structure. The electrical, magnetic and optical properties of transition metal oxides find a rich field of important technical applications. A classical example is the wide use of ferrites in electronic devices. Further examples of suitable technological applications include wide gap semiconductors, superconductors and thermoelectric materials, to mention just a few. Apart from these exciting electronic properties, some transition metal oxides exhibit a remarkable mechanical and high-temperature stability together with a strong resistance against corrosion, thus forming ideal coating materials. Several transition metal oxides may also serve as catalysts. It was the discovery of high-temperature superconductivity in the cuprates and, subsequently, of the colossal magneto-resistance effect (CMR) in the manganates that triggered a tremendous research effort in transition metal oxides during the last decade. [...]