Download or read book Effect of Strain Due to Substrates on Mn doped ZnO Dilute Magnetic Semiconductor Thin Films written by Srikanth Manchiraju and published by . This book was released on 2007 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Thin Films of Mn doped Zinc Oxide Diluted Magnetic Semiconductor Materials Spintronics written by Usman Ilyas and published by . This book was released on 2014 with total page 380 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nanocrystalline Mn and Fe Doped ZnO Thin Films Prepared Using SILAR Method for Dilute Magnetic Semiconductor Application written by Rathinam Chandramohan and published by . This book was released on 2013 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Nanocrystalline Mn and Fe Doped ZnO Thin Films Prepared Using SILAR Method for Dilute Magnetic Semiconductor Application.
Download or read book Physical Properties of Dilute Magnetic Semiconducting Oxides written by Sudipta Bandyopadhyay and published by LAP Lambert Academic Publishing. This book was released on 2014-11-19 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt: Transition metal doped ZnO has been studied from the perspective of its suitability in electronic applications. Bulk samples of Mn doped ZnO has been synthesized by solid state reaction and sol-gel techniques. Thin films of Mn doped ZnO has been synthesized by only sol-gel spin coating technique. So far as Co doped ZnO is concerned it is basically Co co-doped AZO [Al doped ZnO] film synthesized by sol-gel dip coating technique. Above 3 at% of Mn doping impurity phase has been developed for bulk powder sample. The impurity phase was completely or partially dissolved by ion beam irradiation. The role of Zn vacancy and substitutional replacement of Mn at Zn site is crucial for intrinsic ferromagnetism. Further counterbalancing antiferromagnetism and paramagnetism are also present. 2 at% Mn doped ZnO powder sample indicate metal insulator transition. Mn doped ZnO films exhibit defect induced ferromagnetism and interpreted in terms of bound magnetic polaron. Zn Vacancy favours and oxygen vacancy opposes intrinsic ferromagnetism in Mn doped ZnO film. Highly conducting Co co-doped AZO films shows potential for applications with interesting low temperature resistivity behaviour.
Download or read book Transition Metal Doped Zinc Oxide as Diluted Magnetic Semiconductor written by Zheng Zuo and published by . This book was released on 2013 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt: Transition metal doped ZnO has been proposed to be a Diluted Magnetic Semiconductor with room temperature ferromagnetism. High quality Mn doped ZnO was grown on R-sapphire substrate. Results support intrinsic ferromagnetism, while [Mu]B/ion number was found to be larger than maximum permitted by Hund's law. Saturation strength and coercivity field was found to be manipulated by varying Mn doping concentration. Mn/Ag co-doping was found to alter saturation strength and coercivity field as well. Ag was investigated as substitution dopant to achieve high quality p-type ZnO. With optimization of growth parameters, phase segregation was suppressed and p-type was observed. Besides being p-type, Ag doped ZnO was found to exhibit room temperature ferromagnetism. This is the first high quality demonstration of Ag doped ZnO as DMS.
Download or read book Defect Induced Magnetism in Oxide Semiconductors written by Parmod Kumar and published by Elsevier. This book was released on 2023-05-26 with total page 738 pages. Available in PDF, EPUB and Kindle. Book excerpt: Defect-Induced Magnetism in Oxide Semiconductors provides an overview of the latest advances in defect engineering to create new magnetic materials and enable new technological applications. First, the book introduces the mechanisms, behavior, and theory of magnetism in oxide semiconductors and reviews the methods of inducing magnetism in these materials. Then, strategies such as pulsed laser deposition and RF sputtering to grow oxide nanostructured materials with induced magnetism are discussed. This is followed by a review of the most relevant postdeposition methods to induce magnetism in oxide semiconductors including annealing, ion irradiation, and ion implantation. Examples of defect-induced magnetism in oxide semiconductors are provided along with selected applications. This book is a suitable reference for academic researchers and practitioners and for people engaged in research and development in the disciplines of materials science and engineering. - Reviews the magnetic, electrical, dielectric and optical properties of oxide semiconductors with defect-induced magnetism - Discusses growth and post-deposition strategies to grow oxide nanostructured materials such as oxide thin films with defect-induced magnetism - Provides examples of materials with defect-induced magnetism such as zinc oxide, cerium dioxide, hafnium dioxide, and more
Download or read book The Effect of Nonmagnetic Doping and Growth Temperature on the Magneto transport Properties of Mangenese sic and Cobalt Doped Zinc Oxide Dilute Magnetic Semiconductors written by Govind Mundada and published by . This book was released on 2006 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Structural and Magnetic Properties of Zno Doped with Mn and Co written by Vijay Kumar Sharma and published by LAP Lambert Academic Publishing. This book was released on 2010-12 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt: ZnO based Diluted magnetic semiconductors (DMSs) have attracted broad interest for their promise functionalities in spintronics based devices. In this book, we explored the effect of different synthesis techniques (solid-state, sol-gel and chemical vapor deposition (CVD) methods) and synthesis parameters (sintering temperature, doping concentration, annealing atmosphere) on the structural and magnetic properties of TM (Mn, Co) doped ZnO. The effect of Al/Sb codoping on the magnetic properties of ZnMnO and ZnCoO were studied. We also explored the structural, optical and magnetic properties of nanowires and nanorods of Mn doped ZnO for their potential in spintronics based devices. From the experimental results presented in this book, it is concluded that defects like oxygen vacancies, zinc vacancies etc. in the samples are important for room temperature ferromagnetism in ZnO based DMSs.
Download or read book Magnetic Properties of Mn doped Zno Semiconductors and Ultra thin Multilayered Films written by Brooke A. Lasley-hunter and published by . This book was released on 2006 with total page 51 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Progress in Semiconductor Materials V Volume 891 written by Linda J. Olafsen and published by . This book was released on 2006-06-28 with total page 672 pages. Available in PDF, EPUB and Kindle. Book excerpt: The MRS Symposium Proceeding series is an internationally recognised reference suitable for researchers and practitioners.
Download or read book Synthesis and characterization of 3d transation metal ions doped ZnO based dilute magnetic semiconductor thin films written by Kousik Samanta and published by . This book was released on 2009 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Synthesis of Doped ZnO Based Bulk Dilute Magnetic Semiconductors and Their Nanophase Thin Films Using Pulsed Laser Ablation written by Shumaila Karamat and published by . This book was released on 2011 with total page 420 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Recent Applications in Sol Gel Synthesis written by Usha Chandra and published by BoD – Books on Demand. This book was released on 2017-07-05 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt: Versatility, extended compositional ranges, better homogeneity, lesser energy consumption, and requirement of nonexpensive equipments have boosted the use of sol-gel process on top of the popularity in the synthesis of nanosystems. The sol-gel technique has not only revolutionized oxide ceramics industry and/or material science but has also extended widely into multidimensional applications. The book Recent Applications in Sol-Gel Synthesis comprises 14 chapters that deal mainly with the application-oriented aspects of the technique. Sol-gel prepared metal oxide (MO) nanostructures like nanospheres, nanorods, nanoflakes, nanotubes, and nanoribbons have been employed in biomedical applications involving drug deliveries, mimicking of natural bone, and antimicrobial activities. The possibility of controlling grain size in aerogel and preparation of ultrahigh-temperature ceramic (UHTC)-based materials, fluorescent glasses, ultraviolet photosensors, and photocatalysts have been discussed in detail by the experts in the field. The usefulness of sol-gel materials as active GRIN, as textile finisher, and as leather modifier with water-repellent and oil-resistive properties would be an incentive for researchers keen to pursue the field.
Download or read book DEFECTS AND FERROMAGNETISM IN TRANSITION METAL DOPED ZINC OXIDE written by Sunil Thapa and published by . This book was released on 2016 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt: Transition metal doped zinc oxide has been studied recently due to its potential application in spintronic devices. The magnetic semiconductor, often called Diluted Magnetic Semiconductors (DMS), has the ability to incorporate both charge and spin into a single formalism. Despite a large number of studies on ferromagnetism in ZnO based DMS and the realization of its room temperature ferromagnetism, there is still a debate about the origin of the ferromagnetism. In this work, the synthesis and characterization of transition metal doped zinc oxide have been carried out. The sol-gel method was used to synthesize thin films, and they were subsequently annealed in air. Characterization of doped zinc oxide films was carried out using the UV-visible range spectrometer, scanning electron microscopy, superconducting quantum interference device (SQUID), x-ray diffraction(XRD) and positron annihilation spectroscopy. Hysteresis loops were obtained for copper and manganese doped zinc oxide, but a reversed hysteresis loop was observed for 2% Al 3% Co doped zinc oxide. The reversed hysteresis loop has been explained using a two-layer model.
Download or read book Comprehensive Nanoscience and Technology written by and published by Academic Press. This book was released on 2010-10-29 with total page 2785 pages. Available in PDF, EPUB and Kindle. Book excerpt: From the Introduction: Nanotechnology and its underpinning sciences are progressing with unprecedented rapidity. With technical advances in a variety of nanoscale fabrication and manipulation technologies, the whole topical area is maturing into a vibrant field that is generating new scientific research and a burgeoning range of commercial applications, with an annual market already at the trillion dollar threshold. The means of fabricating and controlling matter on the nanoscale afford striking and unprecedented opportunities to exploit a variety of exotic phenomena such as quantum, nanophotonic and nanoelectromechanical effects. Moreover, researchers are elucidating new perspectives on the electronic and optical properties of matter because of the way that nanoscale materials bridge the disparate theories describing molecules and bulk matter. Surface phenomena also gain a greatly increased significance; even the well-known link between chemical reactivity and surface-to-volume ratio becomes a major determinant of physical properties, when it operates over nanoscale dimensions. Against this background, this comprehensive work is designed to address the need for a dynamic, authoritative and readily accessible source of information, capturing the full breadth of the subject. Its six volumes, covering a broad spectrum of disciplines including material sciences, chemistry, physics and life sciences, have been written and edited by an outstanding team of international experts. Addressing an extensive, cross-disciplinary audience, each chapter aims to cover key developments in a scholarly, readable and critical style, providing an indispensible first point of entry to the literature for scientists and technologists from interdisciplinary fields. The work focuses on the major classes of nanomaterials in terms of their synthesis, structure and applications, reviewing nanomaterials and their respective technologies in well-structured and comprehensive articles with extensive cross-references. It has been a constant surprise and delight to have found, amongst the rapidly escalating number who work in nanoscience and technology, so many highly esteemed authors willing to contribute. Sharing our anticipation of a major addition to the literature, they have also captured the excitement of the field itself in each carefully crafted chapter. Along with our painstaking and meticulous volume editors, full credit for the success of this enterprise must go to these individuals, together with our thanks for (largely) adhering to the given deadlines. Lastly, we record our sincere thanks and appreciation for the skills and professionalism of the numerous Elsevier staff who have been involved in this project, notably Fiona Geraghty, Megan Palmer and Greg Harris, and especially Donna De Weerd-Wilson who has steered it through from its inception. We have greatly enjoyed working with them all, as we have with each other.
Download or read book Physics of Semiconductors written by José Menéndez and published by AIP Conference Proceedings / M. This book was released on 2005 with total page 870 pages. Available in PDF, EPUB and Kindle. Book excerpt: Annotation All papers have been peer-reviewed. This is the most important conference in the field of semiconductor physics. It has been held biennially since 1951. The proceedings cover a wide range of topics, from fundamental structural, vibrational, and electronic properties to device applications. Special emphasis is given to areas of current interest such as nitride semiconductors, nanostructures, spintronics, and quantum computing. This volume is a fundamental reference for physicists, chemists, materials scientists, and electrical engineers.
Download or read book Ion Implantation written by Ishaq Ahmad and published by BoD – Books on Demand. This book was released on 2017-06-14 with total page 154 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ion implantation is one of the promising areas of sciences and technologies. It has been observed as a continuously evolving technology. In this book, there is a detailed overview of the recent ion implantation research and innovation along with the existing ion implantation technological issues especially in microelectronics. The book also reviews the basic knowledge of the radiation-induced defects production during the ion implantation in case of a semiconductor structure for fabrication and development of the required perfect microelectronic devices. The improvement of the biocompatibility of biomaterials by ion implantation, which is a hot research topic, has been summarized in the book as well. Moreover, advanced materials characterization techniques are also covered in this book to evaluate the ion implantation impact on the materials.
