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Download or read book Magnetotransport and Magnetic Properties of Molecular-beam Epitaxy L10 FePt Thin Films written by and published by . This book was released on 2000 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Kaiyou Wang (PhD.)
Publisher :
ISBN 13 :
Total Pages : 420 pages
Book Rating : 4.:/5 (125 download)
Download or read book Magnetotransport and Magnetic Properties of (GA,Mn) as Thin Films written by Kaiyou Wang (PhD.) and published by . This book was released on 2005 with total page 420 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Fu-Sheng Luo
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (137 download)
Download or read book The Effects of Substrate Temperature on the Magnetic and Magnetotransport Properties of Cr 1-XTe Epitaxial Films written by Fu-Sheng Luo and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cr1-xTe epitaxial films have been grown on SrTiO3 (111) single-crystal substrates using molecular beam epitaxy. The effects of substrate temperature on the structural, electronic, and magnetic properties of the Cr1-xTe films are studied. As the substrate temperature increases, the Cr content increases, which results in the increase in the Curie temperature and in-plane magnetization and decrease in the out-of-plane magnetization and coercive field as well as significant changes in magnetoresistance and perpendicular magnetic anisotropy of the Cr1-xTe films. All Cr1-xTe films show metal-to-semiconductor-like transitions which are coupled with paramagnetic-to-ferromagnetic transitions and show negative magnetoresistance effect which is strongest near the transitions and can be understood within the framework of electronic phase separation. These results demonstrate that the substrate temperature have significant effects on the magnetic and magnetotransport properties of Cr1-xTe films and should be carefully controlled in order to obtain desired electronic and magnetic properties.
Author : John Orton
Publisher : OUP Oxford
ISBN 13 : 0191061166
Total Pages : 529 pages
Book Rating : 4.1/5 (91 download)
Download or read book Molecular Beam Epitaxy written by John Orton and published by OUP Oxford. This book was released on 2015-06-25 with total page 529 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book is a history of Molecular Beam Epitaxy (MBE) as applied to the growth of semiconductor thin films (note that it does not cover the subject of metal thin films). It begins by examining the origins of MBE, first of all looking at the nature of molecular beams and considering their application to fundamental physics, to the development of nuclear magnetic resonance and to the invention of the microwave MASER. It shows how molecular beams of silane (SiH4) were used to study the nucleation of silicon films on a silicon substrate and how such studies were extended to compound semiconductors such as GaAs. From such surface studies in ultra-high vacuum the technique developed into a method of growing high quality single crystal films of a wide range of semiconductors. Comparing this with earlier evaporation methods of deposition and with other epitaxial deposition methods such as liquid phase and vapour phase epitaxy (LPE and VPE). The text describes the development of MBE machines from the early âhome-madeâ variety to that of commercial equipment and show how MBE was gradually refined to produce high quality films with atomic dimensions. This was much aided by the use of various in-situ surface analysis techniques, such as reflection high energy electron diffraction (RHEED) and mass spectrometry, a feature unique to MBE. It looks at various modified versions of the basic MBE process, then proceed to describe their application to the growth of so-called âlow-dimensional structuresâ (LDS) based on ultra-thin heterostructure films with thickness of order a few molecular monolayers. Further chapters cover the growth of a wide range of different compounds and describe their application to fundamental physics and to the fabrication of electronic and opto-electronic devices. The authors study the historical development of all these aspects and emphasise both the (often unexpected) manner of their discovery and development and the unique features which MBE brings to the growth of extremely complex structures with monolayer accuracy.
Author :
Publisher :
ISBN 13 :
Total Pages : 2668 pages
Book Rating : 4.3/5 (91 download)
Download or read book Chemical Abstracts written by and published by . This book was released on 2002 with total page 2668 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Andreas Kaidatzis
Publisher : Springer Nature
ISBN 13 : 9402420347
Total Pages : 171 pages
Book Rating : 4.4/5 (24 download)
Download or read book Modern Magnetic and Spintronic Materials written by Andreas Kaidatzis and published by Springer Nature. This book was released on 2020-07-14 with total page 171 pages. Available in PDF, EPUB and Kindle. Book excerpt: Magnetic and spintronic materials are ubiquitous in modern technological applications, e.g. in electric motors, power generators, sensors and actuators, not to mention information storage and processing. Medical technology has also greatly benefited from magnetic materials – especially magnetic nanoparticles – for therapy and diagnostics methods. All of the above-mentioned applications rely on the properties of the materials used. These properties in turn depend on intrinsic and extrinsic material parameters. The former are related to the actual elements used and their properties, e.g. atomic magnetic moment and exchange interaction between atoms; the latter are related to the structural and microstructural properties of the materials used, e.g. their crystal structure, grain size, and grain boundary phases. Focusing on state-of-the-art magnetic and spintronic materials, this book will introduce readers to a range of related topics in Physics and Materials Science. Phenomena and processes at the nanoscale are of particular importance in this context; accordingly, much of the book addresses such topics.
Author : Mark Lui
Publisher :
ISBN 13 :
Total Pages : 368 pages
Book Rating : 4.:/5 (785 download)
Download or read book Molecular Beam Epitaxy and Magnetic Properties of Transition Metal Difluoride Films written by Mark Lui and published by . This book was released on 1989 with total page 368 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Marian A. Herman
Publisher : Springer
ISBN 13 : 9783540190752
Total Pages : 382 pages
Book Rating : 4.1/5 (97 download)
Download or read book Molecular Beam Epitaxy written by Marian A. Herman and published by Springer. This book was released on 1989 with total page 382 pages. Available in PDF, EPUB and Kindle. Book excerpt: This first-ever monograph on molecular beam epitaxy (MBE) gives a comprehensive presentation of recent developments in MBE, as applied to crystallization of thin films and device structures of different semiconductor materials. MBE is a high-vacuum technology characterized by relatively low growth temperature, ability to cease or initiate growth abruptly, smoothing of grown surfaces and interfaces on an atomic scale, and the unique facility for in situ analysis of the structural parameters of the growing film. The excellent exploitation parameters of such MBE-produced devices as quantum-well lasers, high electron mobility transistors, and superlattice avalanche photodiodes have caused this technology to be intensively developed. The main text of the book is divided into three parts. The first presents and discusses the more important problems concerning MBE equipment. The second discusses the physico-chemical aspects of the crystallization processes of different materials (mainly semiconductors) and device structures. The third part describes the characterization methods which link the physical properties of the grown film or structures with the technological parameters of the crystallization procedure. Latest achievements in the field are emphasized, such as solid source MBE, including silicon MBE, gas source MBE, especially metalorganic MBE, phase-locked epitaxy and atomic-layer epitaxy, photoassisted molecular layer epitaxy and migration enhanced epitaxy.
Author : Chung-Ping Shih
Publisher :
ISBN 13 :
Total Pages : 398 pages
Book Rating : 4.:/5 (319 download)
Download or read book Molecular Beam Epitaxial Growth and Phase Transformation Behaviors of Heusler-type Single Crystal Ferromagnetic Shape Memory Thin Films written by Chung-Ping Shih and published by . This book was released on 2005 with total page 398 pages. Available in PDF, EPUB and Kindle. Book excerpt:
![Download Molecular Beam Epitaxy Growth and Magnetic Studies of Fe Ultrathin Structures [microform] PDF Online Free](https://books.google.com/books/content/images/frontcover/ws3RygAACAAJ?fife=w200-h370)
Author : Zbigniew Jan Celinski
Publisher : National Library of Canada = Bibliothèque nationale du Canada
ISBN 13 : 9780315836600
Total Pages : 276 pages
Book Rating : 4.8/5 (366 download)
Download or read book Molecular Beam Epitaxy Growth and Magnetic Studies of Fe Ultrathin Structures [microform] written by Zbigniew Jan Celinski and published by National Library of Canada = Bibliothèque nationale du Canada. This book was released on 1992 with total page 276 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Sujan Budhathoki
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (129 download)
Download or read book Tailoring Structural and Magnetic Properties of Fe-Based Epitaxial Thin-Film Alloys Grown by Sputter Beam Epitaxy written by Sujan Budhathoki and published by . This book was released on 2021 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Thin films are an excellent option to realize new materials for scientific discovery, newmaterial properties, and applications development. Amongst thin film deposition techniques, magnetron sputter deposition boasts scalability, flexibility in elemental choice and material access, lower cost compared to most physical vapor depositions techniques, and deposition speed range, particularly the ability for high-rate deposition. A modified version of off-axis magnetron sputtering, sputter beam epitaxy (SBE) is flexible, employs both DC and RF sputtering, utilizes a wide range of elements and materials for both alloy and oxide growth, and flux monitoring and beam controls results in stoichiometric, phase-pure, and significantly improved crystalline thin films. The successful fabrication and characterization of high-quality iron-based alloys, grown as epitaxial thin films by ultra-high vacuum SBE, are presented in this dissertation as proof of concept. High-quality epitaxial Fe81Ga19 thin films of thickness 16 and 24 nm grown onMgO(100) substrates show a low residual linewidth, ?H0 = 13℗ł1 Oe and ?H0 = 71℗ł1 Oe respectively. Similarly, a very low effective damping parameter,?ef f = 0.0065+0.0005 ?0.0001 and ?ef f = 0.0039+0.0028 ?0.0007 are observed for 16 and 24 nm thick films respectively. Another binary compound FeGe lacks inversion symmetry and hosts Skyrmions close to room temperature. The epitaxial FeGe thin films grown on Ge(111) substrates reveal a strain-induced enhancement of transition temperature to 350 K. The Skyrmionic signatures are revealed by strong topological Hall (TH) resistivity values between 10 and 330 K. Further, the maximum magnitude of TH resistivity values occurs just below transition temperature consistent with the onset of the SkX phase in bulk FeGe. Epitaxial Heusler alloy thin films of Co2FeTi0.5Al0.5 grown on MgO(100), MAO(100), and Al2O3(110) substrates exhibit a very low linewidth and damping parameter. A total damping parameter of ?eff = 0.00202℗ł 0.0001 and a residual linewidth term ?H0 = 0.0011 ℗ł 0.0001 T are observed for 10 nm film grown on Al2O3(110) substrate. Four-fold manetocrystalline anisotropy is observed in films grown on MgO and MAO substrates, whereas a pronounced uniaxial anisotropy is observed in films grown on Al2O3(110) substrate is observed.
Author :
Publisher :
ISBN 13 :
Total Pages : 15 pages
Book Rating : 4.:/5 (684 download)
Download or read book High-coercivity, C-axis Oriented Nd2Fe14B Films Grown by Molecular Beam Epitaxy written by and published by . This book was released on 1996 with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt: Thin films of Nd2Fe14B with a c-axis orientation and bulk- like magnetic properties were grown with thickness as low as 300 Å. They were grown on single-crystal MgO(100) wafers overcoated with epitaxial Mo(100) buffer layers. The 2-14-1 phase were crystallized either by sequential deposition or co-deposition of Fe, Nd, and B from pure elemental evaporation sources onto 600-700 C substrates. Structure of each film was characterized in-situ with RHEED and ex-situ with XRD. For the sequentially deposited films, the in-plane saturation field is 60-70 kOe at 300 K, consistent with the bulk anisotropy field of 73 kOe. The spin-reorientation transition at 135 K can also be clearly seen in the in-plane and out-of-plane magnetization vs temperature data. The out-of-plane coercivities range from 15-20 kOe at 20 K and 3-8 kOe at 300 K. Co-deposition results in a multiphase structure, with Nd2Fe14B now the minority phase. The multiphase structure results in reduced perpendicular anisotropy.
Author : Patrick Matthes
Publisher :
ISBN 13 : 9783944640716
Total Pages : pages
Book Rating : 4.6/5 (47 download)
Download or read book Magnetic and Magneto-Transport Properties of Hard Magnetic Thin Film Systems written by Patrick Matthes and published by . This book was released on 2016 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Sunglae Cho
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (388 download)
Download or read book Molecular Beam Epitaxial Growth and Thermoelectric Transport Properties of Bismuth and Bismuth-antomony Alloy Thin Films and Quantum Well Superlattices written by Sunglae Cho and published by . This book was released on 1997 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: We have successfully grown Bi and BiSb alloy thin films and superlattices on InSb(111)A/B and CdTe(111)A/B substrates over a wide range of Sb compositions using molecular beam epitaxy. The growth mode modification of Bi on the CdTe(111)A surface from 3D island to layer-by-layer growth was achieved by introducing a Te monolayer on the CdTe(111)A surface. The Te monolayer remains at the Bi and CdTe(111)A interface. We applied this technique in the growth of Bi/CdTe superlattices. With Te monolayer incorporation we could grow superlattices with thin Bi layers and sharp interfaces.
Author :
Publisher :
ISBN 13 :
Total Pages : 2304 pages
Book Rating : 4.3/5 (243 download)
Download or read book Electrical & Electronics Abstracts written by and published by . This book was released on 1997 with total page 2304 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 1042 pages
Book Rating : 4.3/5 (91 download)
Download or read book JJAP Letters written by and published by . This book was released on 2003 with total page 1042 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Katayun Barmak
Publisher : Woodhead Publishing
ISBN 13 : 085709629X
Total Pages : 671 pages
Book Rating : 4.8/5 (57 download)
Download or read book Metallic Films for Electronic, Optical and Magnetic Applications written by Katayun Barmak and published by Woodhead Publishing. This book was released on 2014-02-13 with total page 671 pages. Available in PDF, EPUB and Kindle. Book excerpt: Metallic films play an important role in modern technologies such as integrated circuits, information storage, displays, sensors, and coatings. Metallic Films for Electronic, Optical and Magnetic Applications reviews the structure, processing and properties of metallic films. Part one explores the structure of metallic films using characterization methods such as x-ray diffraction and transmission electron microscopy. This part also encompasses the processing of metallic films, including structure formation during deposition and post-deposition reactions and phase transformations. Chapters in part two focus on the properties of metallic films, including mechanical, electrical, magnetic, optical, and thermal properties. Metallic Films for Electronic, Optical and Magnetic Applications is a technical resource for electronics components manufacturers, scientists, and engineers working in the semiconductor industry, product developers of sensors, displays, and other optoelectronic devices, and academics working in the field. Explores the structure of metallic films using characterization methods such as x-ray diffraction and transmission electron microscopy Discusses processing of metallic films, including structure formation during deposition and post-deposition reactions and phase transformations Focuses on the properties of metallic films, including mechanical, electrical, magnetic, optical, and thermal properties
