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Investigations on Transition Metal Doped Semiconductor for Spintronics

2010-10
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Release : 2010-10
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Kind : eBook
Book Rating : 726/5 ( reviews)

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Book Synopsis Investigations on Transition Metal Doped Semiconductor for Spintronics by : Reddithota Vidya Sagar

Download or read book Investigations on Transition Metal Doped Semiconductor for Spintronics written by Reddithota Vidya Sagar. This book was released on 2010-10. Available in PDF, EPUB and Kindle. Book excerpt: Present thesis entitled "Studies on Synthesis, Structural, Optical and Magnetic Properties of Mn, Co, and (Mn, Co) Substituted ZnO nanoparticles has been compiled in six chapters. Chapter I, brings out a general and necessary introduction to understand the basic concepts and significance of the topic of research. Chapter II, describes the experimental studies carried upon by the author in the synthesis and analysis of Mn, Co and (Mn, Co): ZnO nanoparticles by means of a single-source oxalate precursor decomposition method. Chapter III, reports on the results based on the synthesis, structural, optical and magnetic properties of Mn: ZnO nanoparticles. The magnetic properties of the samples have been carried out on a Vibrating Sample Magnetometer (VSM). Chapter IV documents the results concerning the synthesis, structural, optical and magnetic properties of Co: ZnO nanoparticles. Room temperature ferromagnetism was confirmed used VSM. Chapter V reports the results pertaining to the synthesis, structural, optical and magnetic properties of (Mn, Co): ZnO nanoparticles. Chapter VI is the summery of the thesis

Rare Earth and Transition Metal Doping of Semiconductor Materials

2016-01-23 Science
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Release : 2016-01-23
Genre : Science
Kind : eBook
Book Rating : 60X/5 ( reviews)

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Book Synopsis Rare Earth and Transition Metal Doping of Semiconductor Materials by : Volkmar Dierolf

Download or read book Rare Earth and Transition Metal Doping of Semiconductor Materials written by Volkmar Dierolf. This book was released on 2016-01-23. Available in PDF, EPUB and Kindle. Book excerpt: Rare Earth and Transition Metal Doping of Semiconductor Material explores traditional semiconductor devices that are based on control of the electron's electric charge. This book looks at the semiconductor materials used for spintronics applications, in particular focusing on wide band-gap semiconductors doped with transition metals and rare earths. These materials are of particular commercial interest because their spin can be controlled at room temperature, a clear opposition to the most previous research on Gallium Arsenide, which allowed for control of spins at supercold temperatures. Part One of the book explains the theory of magnetism in semiconductors, while Part Two covers the growth of semiconductors for spintronics. Finally, Part Three looks at the characterization and properties of semiconductors for spintronics, with Part Four exploring the devices and the future direction of spintronics. - Examines materials which are of commercial interest for producing smaller, faster, and more power-efficient computers and other devices - Analyzes the theory behind magnetism in semiconductors and the growth of semiconductors for spintronics - Details the properties of semiconductors for spintronics

Transition Metal Doped ZnO for Spintronics

2007
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Release : 2007
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Book Synopsis Transition Metal Doped ZnO for Spintronics by :

Download or read book Transition Metal Doped ZnO for Spintronics written by . This book was released on 2007. Available in PDF, EPUB and Kindle. Book excerpt: In this project, the properties of transition metal (TM) -doped ZnO will be investigated. The project focuses on two activities. First, the properties of ZnO doped with transition metals (Mn, Co, or Cr) and deep level impurities (Cu, As, Sn) is explored. The primary interest will be on elucidating the origin of magnetism in the TM-doped material, including understanding the role of deep level co-dopants in mediating ferromagnetism. Experiments will focus on correlating magnetic properties (Curie temperature, moment/TM dopant) with the TM and deep level dopant concentrations. Epitaxial film growth and ion implantation of single crystals will be used in these studies. Second, for the dilute magnetic semiconducting compounds, there appears to be a correlation of Curie temperature with semiconductor bandgap. In an effort to increase the Curie temperature to greater than 300 K, the properties of TM-doped (Zn, Mg)O will also be investigated, as the addition of Mg to ZnO increases the bandgap. The epitaxial films will be grown by pulsed-laser deposition. Temperature-dependent Hall and resistivity measurements will be used to determine conduction mechanisms, carrier type, and doping. SQUID magnetometry will be used to characterize the magnetic properties of transition metal doped materials.

Transition Metal Doped Spintronics Materials

2023-02-15 Technology & Engineering
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Release : 2023-02-15
Genre : Technology & Engineering
Kind : eBook
Book Rating : 257/5 ( reviews)

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Book Synopsis Transition Metal Doped Spintronics Materials by : R. Saravanan

Download or read book Transition Metal Doped Spintronics Materials written by R. Saravanan. This book was released on 2023-02-15. Available in PDF, EPUB and Kindle. Book excerpt: The book presents new research on the synthesis and characterization of various oxide based dilute magnetic spintronics materials (ODMS). The characterization techniques included powder X-ray diffraction, scanning electron microscopy, vibrating sample magnetometry and UV visible spectrometry. The morphological, magnetic and optical properties are reported. Electron density distribution studies are presented in the form of three, two and one dimensional electron density maps. Keywords: Spintronics Materials, Zn1-xTixO, Zn1-xFexO, Zn1-xVxO, Zn1-xNix/2Vx/2O, Synthesis, X-ray Diffraction. Rietveld Analysis, Surface Morphological Properties, Optical Properties, Magnetic Properties, Charge Density Analysis, Electron Density Distribution.

Spintronics

2009-02-12 Technology & Engineering
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Release : 2009-02-12
Genre : Technology & Engineering
Kind : eBook
Book Rating : 217/5 ( reviews)

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Book Synopsis Spintronics by : Tomasz Dietl

Download or read book Spintronics written by Tomasz Dietl. This book was released on 2009-02-12. Available in PDF, EPUB and Kindle. Book excerpt: This new volume focuses on a new, exciting field of research: Spintronics, the area also known as spin-based electronics. The ultimate aim of researchers in this area is to develop new devices that exploit the spin of an electron instead of, or in addition to, its electronic charge. In recent years many groups worldwide have devoted huge efforts to research of spintronic materials, from their technology through characterization to modeling. The resultant explosion of papers in this field and the solid scientific results achieved justify the publication of this volume. Its goal is to summarize the current level of understanding and to highlight some key results and milestones that have been achieved to date. Semiconductor spintronics is expected to lead to a new generation of transistors, lasers and integrated magnetic sensors that can be used to create ultra-low power, high-speed memory, logic and photonic devices. In addition, development of novel devices such as spin-polarized light emitters, spin field effect transistors, integrated sensors and high-temperature electronics is anticipated. - Spintronics has emerged as one of the fastest growing areas of research - This text presents an in-depth examination of the most recent technological spintronic developments - Includes contributions from leading scholars and industry experts

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