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Recent Advances in Novel Materials for Future Spintronics

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ISBN: 9783038979760 / 9783038979777 Year: Pages: 152 DOI: 10.3390/books978-3-03897-977-7 Language: eng
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Science (General) --- Chemistry (General)
Added to DOAB on : 2019-06-26 08:44:06
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As we all know, electrons carry both charge and spin. The processing of information in conventional electronic devices is based only on the charge of electrons. Spin electronics, or spintronics, uses the spin of electrons, as well as their charge, to process information. Metals, semiconductors, and insulators are the basic materials that constitute the components of electronic devices, and these types of materials have been transforming all aspects of society for over a century. In contrast, magnetic metals, half-metals (including zero-gap half-metals), magnetic semiconductors (including spin-gapless semiconductors), dilute magnetic semiconductors, and magnetic insulators are the materials that will form the basis for spintronic devices. This book aims to collect a range of papers on novel materials that have intriguing physical properties and numerous potential practical applications in spintronics.

Computational Methods of Multi-Physics Problems

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ISBN: 9783039214174 / 9783039214181 Year: Pages: 128 DOI: 10.3390/books978-3-03921-418-1 Language: eng
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Technology (General) --- General and Civil Engineering
Added to DOAB on : 2019-12-09 11:49:15
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This book offers a collection of six papers addressing problems associated with the computational modeling of multi-field problems. Some of the proposed contributions present novel computational techniques, while other topics focus on applying state-of-the-art techniques in order to solve coupled problems in various areas including the prediction of material failure during the lithiation process, which is of major importance in batteries; efficient models for flexoelectricity, which require higher-order continuity; the prediction of composite pipes under thermomechanical conditions; material failure in rock; and computational materials design. The latter exploits nano-scale modeling in order to predict various material properties for two-dimensional materials with applications in, for example, semiconductors. In summary, this book provides a good overview of the computational modeling of different multi-field problems.

First-Principles Prediction of Structures and Properties in Crystals

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ISBN: 9783039216703 / 9783039216710 Year: Pages: 128 DOI: 10.3390/books978-3-03921-671-0 Language: eng
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Science (General) --- Chemistry (General)
Added to DOAB on : 2019-12-09 16:10:12
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The term “first-principles calculations” is a synonym for the numerical determination of the electronic structure of atoms, molecules, clusters, or materials from ‘first principles’, i.e., without any approximations to the underlying quantum-mechanical equations. Although numerous approximate approaches have been developed for small molecular systems since the late 1920s, it was not until the advent of the density functional theory (DFT) in the 1960s that accurate “first-principles” calculations could be conducted for crystalline materials. The rapid development of this method over the past two decades allowed it to evolve from an explanatory to a truly predictive tool. Yet, challenges remain: complex chemical compositions, variable external conditions (such as pressure), defects, or properties that rely on collective excitations—all represent computational and/or methodological bottlenecks. This Special Issue comprises a collection of papers that use DFT to tackle some of these challenges and thus highlight what can (and cannot yet) be achieved using first-principles calculations of crystals.

Natural Stone and Architectural Heritage

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ISBN: 9783039215508 / 9783039215515 Year: Pages: 262 DOI: 10.3390/books978-3-03921-551-5 Language: eng
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Science (General)
Added to DOAB on : 2019-12-09 11:49:15
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This book is made up of contributions dealing with heritage stones from different countries around the world. The stones are described, as well as their use in vernacular and contemporaneous architecture. Heritage stones are those stones that have special significance in human culture. Examples include some very important stones that have been either neglected because they are no longer extracted, or stones that have great significance in commercial terms but knowledge of their national and/or international heritage has not been well documented. In this collection of articles, we have tried to spread awareness of architectural heritage around the world, the natural stones that have been used in its construction, and the need to preserve historical quarries that once provided the source of such stones. Historical quarries are linked to regional culture and tradition. Because of the specific technical and aesthetical characteristics of heritage stones, which have lasted for centuries, these historical quarries should be preserved to be able to use the stones for the proper restoration of monuments and historical buildings to avoid negative actions that can be observed in many places in the restoration of buildings, which are some times part of World Heritage sites. The final intention of this book is to continuosly grow the interest on this fascinating subject of heritage stones.

Keywords

Gyeongju Historic Areas --- 2016 Gyeongju Earthquake --- site characterisation --- site-specific ground response analysis --- stone architectural heritage --- dynamic centrifuge test --- Cheomseongdae --- ancient seismic design technique --- serpentinites --- rocks characterization --- dimension stone --- architectural heritage --- pyroclastic rock --- dimension stone --- Sardinia --- geoheritage --- market --- houses based on natural stone --- architectural heritage --- the bay of Kotor --- UNESCO cultural heritage --- Studenica --- Sopo?ani --- marble deposits --- quarry characterisation --- restoration --- sustainability --- management --- cultural heritage conservation --- sustainability --- architectural conservation --- stone architecture heritage --- modern principles of double-layered ventilated roofs --- conservation requirements --- UNESCO World Heritage List --- marble --- wettability properties --- hydrophobicity --- laser surface texturing --- multiscale roughness --- cultural heritage --- ultrafast pulse laser --- dolostone --- quarries --- Coimbra Formation --- heritage --- Chianocco marble --- heritage stone --- archaeometry --- Western Alps --- isotopic analysis --- SEM-EDS --- heritage stone --- quartzite --- Bargiolina --- quarries --- dimension stone --- kaolin --- industrial minerals --- natural stone --- fracturing pattern --- quarrying --- geoheritage --- Unesco World Heritage Site --- building stones --- Guadeloupe --- Martinique --- French West Indies --- eastern Caribbean --- cultural heritage --- geological heritage --- historical and Archaeological sites --- Candoglia marble --- Duomo di Milano --- petrographic analysis --- geoheritage --- cultural stone

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