Download E-books Magnetism and the Electronic Structure of Crystals PDF

By Professor Vladimir A. Gubanov, Dr. Alexandr I. Liechtenstein, Dr. Andrei V. Postnikov (auth.)

The quantum concept of magnetism is a well-developed a part of modern solid-state physics. the fundamental options of this conception can be utilized to explain such very important results as ferromagnetic ordering oflocalized magnetic moments in crystals and ferromagnetism of metals produced by way of basically delocalized electrons, in addition to a number of varieties of mutual orientation of atomic magnetic moments in solids owning assorted crystal lattices and compositions. In contemporary years,the spin-fluctuational technique has been built, which may triumph over a few contradictions among "localized" and "itinerant" types within the quantum mechanics of magnetic crystals. those are just many of the valuable achievements of quantum magnetic idea. just about all of the recognized magnetic houses of solids may be qualitat­ ively defined at the foundation of its suggestions. extra advancements should still open up the opportunity of trustworthy quantitative description of magnetic homes of solids. regrettably, such calculations in accordance with version techniques seem to be very complex and, often, now not convinced adequate. The relatively small variety of parameters of qualitative types aren't capable of take into consideration the very kinds of magnetic interactions that seem in crystals. additional improvement of magnetic idea calls for quantitative info on digital wave functionality within the crystal thought of. this is proved by way of digital band­ constitution and cluster calculations. in lots of situations the latter could be a start line for quantitative calculations of parameters utilized in magnetic theory.

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Download E-books Metamaterials: Critique and Alternatives PDF

A Convincing and debatable replacement rationalization of Metamaterials with a unfavourable Index of Refraction

In a booklet that might generate either aid and controversy, one of many world's optimum experts on periodic buildings addresses a number of of the present models in antenna design—most particularly, the preferred topic of double unfavourable metamaterials. Professor Munk offers a complete theoretical electromagnetic research of the problems and concludes that a few of the phenomena claimed by way of researchers might be very unlikely. whereas denying the lifestyles of unfavorable refraction, the writer offers convincing substitute factors for a number of the experimental examples within the literature.

Although the talk in this topic is simply starting, Professor Munk has got aid via quite a few numerical simulations, successful him the encouragement of diverse specialists within the box. the problems which are raised right here haven't been addressed completely through the metamaterials group, and this ebook will function a catalyst for far fit debate and discussion.

Metamaterials: Critique and Alternatives is destined to develop into a vintage source for graduate scholars and researchers in electromagnetics, antenna idea, fabrics examine, and chemistry.

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Download E-books Magneto-Optics and Spectroscopy of Antiferromagnets PDF

By N.F. Kharchenko, Yu.G. Litvinenko, V.M. Naumenko

Sure magnetic fabrics have optical homes that cause them to appealing for a large choice of purposes corresponding to optical switches. This e-book describes the physics of 1 classification of such magnetooptic fabrics, the insulating antiferromagnets. The authors summarize fresh effects about the constitution, optical homes, spectroscopy, and magnetooptical houses of those fabrics. specifically, they think about magnetic section transitions, symmetry results, the linear magnetooptical impression, magnons, spectroscopic research of spin waves, photoinduced magnetic results, and the results of impurities.

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Download E-books Demonstrational Optics: Part 2, Coherent and Statistical Optics (Pt. 2) PDF

By Oleg Marchenko

This publication offers a brand new didactical method of the learn of optics. It emphasizes the significance of difficult new experimental demonstrations containing pictorial illustrations, laptop simulations and types of optical phenomena so as to verify a deeper figuring out of wave and geometric optics. It contains difficulties taken with the pragmatic wishes of scholars, secondary institution academics, collage professors and optical engineers. a considerable a part of this quantity is dedicated to thermal radiation and its homes, specifically with partial coherence. The publication comprises precise descriptions of demonstrational experiments.

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Download E-books Nmr and Chemistry PDF

By J. W. Akitt

Approximately two decades have elapsed seeing that chemists began to take an curiosity in nuc1ear magnetic resonance spectroscopy. within the intervening interval it has proved to be an important and informative department of spectroscopy, loads in order that this day so much examine teams have entry to 1 or extra spectrometers and the training chemist can anticipate consistently to come across references to the method. there's a enormous variety of textbooks on hand at the topic yet those are constantly written basically both for the professional or for the graduate scholar who's beginning to use the method in his study. the writer has, even though, continuously feIt position existed for a non-specialist textual content written for the undergraduate pupil giving an advent to the topic which embraced the total NMR scene and which might function a foundation for later specialisation in any ofthe 3 major branches of chemistry. With this in brain the ebook has been written in sections. the 1st covers the idea utilizing a effortless non-mathematical technique which however introduces one of the most glossy descriptions of some of the phenomena. The textual content is illustrated via particular examples the place invaluable. the second one part is dedicated to displaying how the process is used and provides a few extra complicated examples illustrating for example its use for constitution choice and for measurements of response charges and mechanisrns.

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Download E-books Scanning SQUID Microscope for Studying Vortex Matter in Type-II Superconductors (Springer Theses) PDF

By Amit Finkler

Common equipment of neighborhood magnetic imaging exhibit both a excessive spatial answer and comparatively negative box sensitivity (MFM, Lorentz microscopy), or a comparatively excessive box sensitivity yet restricted spatial answer (scanning SQUID microscopy). because the magnetic box of a nanoparticle or nanostructure decays quickly with distance from the constitution, the available spatial answer is finally constrained through the probe-sample separation. This thesis offers a singular procedure for fabricating the smallest superconducting quantum interference machine (SQUID) that is living at the apex of a really sharp tip. The nanoSQUID-on-tip screens a attribute measurement right down to a hundred nm and a box sensitivity of 10^-3 Gauss/Hz^(1/2). A scanning SQUID microsope was once built via gluing the nanoSQUID-on-tip  to a quartz tuning-fork. This enabled the nanoSQUID to be scanned inside of nanometers of the pattern floor, supplying simultaneous photos of pattern topography and the magnetic box distribution. This microscope represents an important development over the prevailing scanning SQUID innovations and is predicted as a way to picture the spin of a unmarried electron.

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Download E-books High Performance Soft Magnetic Materials (Springer Series in Materials Science) PDF

By Arcady Zhukov

This publication presents finished assurance of the present cutting-edge in tender magnetic fabrics and comparable purposes, with specific specialize in amorphous and nanocrystalline magnetic wires and ribbons and sensor purposes.  Expert chapters hide practise, processing, tuning of magnetic homes, modeling, and functions.  Cost-effective delicate magnetic fabrics are required in more than a few commercial sectors, comparable to magnetic sensors and actuators, microelectronics, cellphones, protection, autos, drugs, future health tracking, aerospace, informatics, and electric engineering. This publication provides either basics and functions to allow educational and researchers to pursue extra advancements of those key fabrics.  This hugely interdisciplinary quantity represents crucial studying for researchers in fabrics technology, magnetism, electrodynamics, and modeling who're drawn to operating with delicate magnets.

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Download E-books Physics of Ferromagnetism (International Series of Monographs on Physics) PDF

This ebook is meant as a textbook for college students and researchers drawn to the actual features of ferromagnetism. the extent of presentation assumes just a uncomplicated wisdom of electromagnetic conception and atomic physics and a basic familiarity with particularly hassle-free arithmetic. during the e-book the emphasis is totally on reasons of actual ideas instead of on rigorous theoretical remedies which require a historical past in quantum mechanics and excessive point arithmetic.

The objective of this publication is to provide a normal view of magnetic phenomena, focusing it truly is major curiosity on the middle of the wide box of ferromagnetism, starting from thought to the engineering purposes similar to delicate and difficult magnetic fabrics and magnetics thoughts. considerably diverse from the author's past booklet Physics of Magnetism released in 1964, the current version is well geared up and contains newer developments.

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