Magnetism in Nanoscale Materials, Effect of Finite Size and Dipolar Interactions PDF Download
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Author: Ritesh Kumar Das
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
ABSTRACT: Material physics is always motivated by the materials with exotic properties. It was a common belief that exotic properties are only associated with exotic materials. Now it is clear that geometrical con nement at nanoscale dimensions can give rise to exotic properties even in simple materials. Ferromagnetic materials in restricted dimensions are extremely interesting because of their potential applications as well as the rich fundamental science involved. Magnetic nanoparticles are useful in high density magnetic data storage devices, sensors, contrast agents in MRI, drug delivery, treating hyperthemia and many more. All the applications of nanomagnets are very crucial in modern day life. But most of the applications are restricted due to the limitations in the fundamental properties arises in nanoscale and also due to the technical limitations of controlling things at nanoscale. For example particles become superparamagnetic as the size is reduced below a certain value and the magnetization direction uctuates randomly due to the thermal energy which limits the density of data storage. The promises of nanomagnets are huge and to really achieve the grand challenges in nanomagnetism, it is necessary to understand the basic sciences involve at small scales. In this present work, the magnetic properties of systems in nanoscale (nanoparticles and thin lms) have been investigated. The e ect of dipolar interactions, particle size, particle size distribution, temperature, magnetic eld etc. on the magnetic properties have been studied.
Author: Ritesh Kumar Das
Publisher:
ISBN:
Category :
Languages : en
Pages :
Get Book Here
Book Description
ABSTRACT: Material physics is always motivated by the materials with exotic properties. It was a common belief that exotic properties are only associated with exotic materials. Now it is clear that geometrical con nement at nanoscale dimensions can give rise to exotic properties even in simple materials. Ferromagnetic materials in restricted dimensions are extremely interesting because of their potential applications as well as the rich fundamental science involved. Magnetic nanoparticles are useful in high density magnetic data storage devices, sensors, contrast agents in MRI, drug delivery, treating hyperthemia and many more. All the applications of nanomagnets are very crucial in modern day life. But most of the applications are restricted due to the limitations in the fundamental properties arises in nanoscale and also due to the technical limitations of controlling things at nanoscale. For example particles become superparamagnetic as the size is reduced below a certain value and the magnetization direction uctuates randomly due to the thermal energy which limits the density of data storage. The promises of nanomagnets are huge and to really achieve the grand challenges in nanomagnetism, it is necessary to understand the basic sciences involve at small scales. In this present work, the magnetic properties of systems in nanoscale (nanoparticles and thin lms) have been investigated. The e ect of dipolar interactions, particle size, particle size distribution, temperature, magnetic eld etc. on the magnetic properties have been studied.
Author: Davide Peddis
Publisher: Springer Nature
ISBN: 303060473X
Category : Science
Languages : en
Pages : 445
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Book Description
This book provides comprehensive coverage of the most recent progress and developments in the field of magnetic nanoparticles, with special emphasis on new materials design approaches for magnetic nanoarchitectures, advanced characterization techniques, and a wide range of applications areas including permanent magnets, biomedicine, and life sciences. The book also features an exhaustive section on fundamentals, covering single particle effects, surface effects, and interparticle interactions. The book delivers a strong focus throughout on the multidisciplinarity of the subject spanning physics, chemistry, engineering, biology, medicine, and environmental science. This forward-looking contributed volume highlights future perspectives and areas of emerging research, and will be of great interest to advanced undergraduates, as well as researchers in academia and industry.
Author: Motonari Adachi
Publisher: Springer Science & Business Media
ISBN: 0387279768
Category : Technology & Engineering
Languages : en
Pages : 334
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Book Description
First to review nanoscale self-assembly employing such a wide variety of methods Covers a wide variety physical, chemical and biological systems, phenomena, and applications First overviews of nanotube biotechnology and bimetallic nanoparticles
Author: Nguyen TK Thanh
Publisher: CRC Press
ISBN: 1439869324
Category : Science
Languages : en
Pages : 613
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Book Description
Offering the latest information in magnetic nanoparticle (MNP) research, Magnetic Nanoparticles: From Fabrication to Clinical Applications provides a comprehensive review, from synthesis, characterization, and biofunctionalization to clinical applications of MNPs, including the diagnosis and treatment of cancers. This book, written by some of the most qualified experts in the field, not only fills a hole in the literature, but also bridges the gaps between all the different areas in this field. Translational research on tailored magnetic nanoparticles for biomedical applications spans a variety of disciplines, and putting together the most significant advances into a practical format is a challenging task. Balancing clinical applications with the underlying theory and foundational science behind these new discoveries, Magnetic Nanoparticles: From Fabrication to Clinical Applications supplies a toolbox of solutions and ideas for scientists in the field and for young researchers interested in magnetic nanoparticles.
Author: Jean-Claude Serge Levy
Publisher: CRC Press
ISBN: 1315361353
Category : Science
Languages : en
Pages : 458
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Book Description
Magnetic nanoparticles appear naturally in rock magnetism together with a large distribution of sizes and shapes. They have numerous applications from nano-size magnetic memories to metamaterials for electromagnetic waves as well as biological applications such as nanosurgery with minimal traumatism. Their long-ranged size- and shape-dependent dipolar interactions provide numerous useful properties. This book describes the preparation as well as the magnetic properties of nanoparticles and also considers 2D dots, nearly spherical samples, elongated samples, and various assemblies of nanoparticles. The authors report the static magnetic structures and dynamic properties of these nanoparticles and the topological defects in 2D and 3D nanoparticles with new examples of S-shaped vortex or antivortex and of bent vortex or antivortex in 3D nanoparticles. The spectrum of magnetic excitations is shown to exhibit the occurrence of gaps, a key for magnonic metamaterial devices. Magnetic excited states are also considered with their coupling to nanoparticle elastic properties.
Author: Georgia C. Papaefthymiou
Publisher: CRC Press
ISBN: 1482257122
Category : Science
Languages : en
Pages : 597
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Book Description
Nanomagnetism: An Interdisciplinary Approach provides a core foundation for understanding magnetic quantum-size effects at the nanoscale and their many applications across the disciplines. This textbook will be a valuable guide for students in new interdisciplinary courses in nanomagnetism and magnetic nanomaterials, an area that has experienced immense growth in the last two decades due to advancements in sample preparation, nanopatterning techniques and magnetic measurement instrumentation. The interdisciplinary nature of nanoscience also makes this book an ideal resource for scientists working in industrial laboratories and pharmaceutical and medical researchers looking to expand their understanding of the physics of magnetic probes. Key Features Discusses physical, chemical and nanotemplating synthesis techniques for the production of magnetic nanoparticles Covers experimental techniques for the determination of the macroscopic and microscopic magnetization of nanoparticles Discusses the role of nanomagnetism in high-density magnetic recording media, nanostructured permanent magnets, MRI imaging enhancement and magnetically guided drug delivery
Author: D. Fiorani
Publisher: Springer Science & Business Media
ISBN: 0387232796
Category : Science
Languages : en
Pages : 309
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Book Description
A collection of articles on different approaches to the investigation of surface effects on nanosized magnetic materials, with special emphasis on magnetic nanoparticles. The book provides an overview of progress in the field through recent results.
Author: Taegyun Kim
Publisher:
ISBN: 9780542865558
Category :
Languages : en
Pages : 110
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Book Description
Author: J. Ping Liu
Publisher: Springer Science & Business Media
ISBN: 0387856005
Category : Science
Languages : en
Pages : 731
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Book Description
Nanoscale Magnetic Materials and Applications covers exciting new developments in the field of advanced magnetic materials. Readers will find valuable reviews of the current experimental and theoretical work on novel magnetic structures, nanocomposite magnets, spintronic materials, domain structure and domain-wall motion, in addition to nanoparticles and patterned magnetic recording media. Cutting-edge applications in the field are described by leading experts from academic and industrial communities. These include new devices based on domain wall motion, magnetic sensors derived from both giant and tunneling magnetoresistance, thin film devices in micro-electromechanical systems, and nanoparticle applications in biomedicine. In addition to providing an introduction to the advances in magnetic materials and applications at the nanoscale, this volume also presents emerging materials and phenomena, such as magnetocaloric and ferromagnetic shape memory materials, which motivate future development in this exciting field. Nanoscale Magnetic Materials and Applications also features a foreword written by Peter Grünberg, recipient of the 2007 Nobel Prize in Physics.
Author: Alberto P. Guimarães
Publisher: Springer
ISBN: 3319594095
Category : Science
Languages : en
Pages : 335
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Book Description
The second edition of this book on nanomagnetism presents the basics and latest studies of low-dimensional magnetic nano-objects. It highlights the intriguing properties of nanomagnetic objects, such as thin films, nanoparticles, nanowires, nanotubes, nanodisks and nanorings as well as novel phenomena like spin currents. It also describes how nanomagnetism was an important factor in the rapid evolution of high-density magnetic recording and is developing into a decisive element of spintronics. Further, it presents a number of biomedical applications. With exercises and solutions, it serves as a graduate textbook.
