Epitaxial Growth and Characterization of MnAs/Si(111) Nanoscale Magnetoelectronic Heterostructures

Epitaxial Growth and Characterization of MnAs/Si(111) Nanoscale Magnetoelectronic Heterostructures PDF Author: A. G. Banshchikov
Publisher:
ISBN:
Category :
Languages : en
Pages : 4

Get Book Here

Book Description
Molecular beam epitaxy was used to grow thin (6-12 nm) ferromagnetic MnAs films on a Si(111) substrate. The characterization of the film structural and magnetic properties was carried out using X-ray. RHEED. AFM and magneto-optical methods.

Epitaxial Growth and Characterization of MnAs/Si(111) Nanoscale Magnetoelectronic Heterostructures

Epitaxial Growth and Characterization of MnAs/Si(111) Nanoscale Magnetoelectronic Heterostructures PDF Author: A. G. Banshchikov
Publisher:
ISBN:
Category :
Languages : en
Pages : 4

Get Book Here

Book Description
Molecular beam epitaxy was used to grow thin (6-12 nm) ferromagnetic MnAs films on a Si(111) substrate. The characterization of the film structural and magnetic properties was carried out using X-ray. RHEED. AFM and magneto-optical methods.

東京大学工学部電気工学・電子情報工学・電子工学彙報

東京大学工学部電気工学・電子情報工学・電子工学彙報 PDF Author:
Publisher:
ISBN:
Category : Electrical engineering
Languages : en
Pages : 594

Get Book Here

Book Description


Epitaxial Growth and Characterization of Multifunctional Heterostructures

Epitaxial Growth and Characterization of Multifunctional Heterostructures PDF Author: Swedesh Kumar Srivastava
Publisher:
ISBN:
Category :
Languages : en
Pages : 758

Get Book Here

Book Description


Epitaxial Nanoscale Growth and Characterization

Epitaxial Nanoscale Growth and Characterization PDF Author: Alexander D. Williams
Publisher:
ISBN:
Category :
Languages : en
Pages : 76

Get Book Here

Book Description


Nanostructure Science and Technology

Nanostructure Science and Technology PDF Author: Richard W. Siegel
Publisher: Springer Science & Business Media
ISBN: 9780792358541
Category : Technology & Engineering
Languages : en
Pages : 378

Get Book Here

Book Description
Timely information on scientific and engineering developments occurring in laboratories around the world provides critical input to maintaining the economic and technological strength of the United States. Moreover, sharing this information quickly with other countries can greatly enhance the productivity of scientists and engineers. These are some of the reasons why the National Science Foundation (NSF) has been involved in funding science and technology assessments comparing the United States and foreign countries since the early 1980s. A substantial number of these studies have been conducted by the World Technology Evaluation Center (WTEC) managed by Loyola College through a cooperative agreement with NSF. The National Science and Technology Council (NSTC), Committee on Technology's Interagency Working Group on NanoScience, Engineering and Technology (CT/IWGN) worked with WTEC to develop the scope of this Nanostucture Science and Technology report in an effort to develop a baseline of understanding for how to strategically make Federal nanoscale R&D investments in the coming years. The purpose of the NSTC/WTEC activity is to assess R&D efforts in other countries in specific areas of technology, to compare these efforts and their results to U. S. research in the same areas, and to identify opportunities for international collaboration in precompetitive research. Many U. S. organizations support substantial data gathering and analysis efforts focusing on nations such as Japan. But often the results of these studies are not widely available. At the same time, government and privately sponsored studies that are in the public domain tend to be "input" studies.

Spin Electronics

Spin Electronics PDF Author: David D. Awschalom
Publisher: Springer Science & Business Media
ISBN: 9401705321
Category : Science
Languages : en
Pages : 216

Get Book Here

Book Description
The history of scientific research and technological development is replete with examples of breakthroughs that have advanced the frontiers of knowledge, but seldom does it record events that constitute paradigm shifts in broad areas of intellectual pursuit. One notable exception, however, is that of spin electronics (also called spintronics, magnetoelectronics or magnetronics), wherein information is carried by electron spin in addition to, or in place of, electron charge. It is now well established in scientific and engineering communities that Moore's Law, having been an excellent predictor of integrated circuit density and computer performance since the 1970s, now faces great challenges as the scale of electronic devices has been reduced to the level where quantum effects become significant factors in device operation. Electron spin is one such effect that offers the opportunity to continue the gains predicted by Moore's Law, by taking advantage of the confluence of magnetics and semiconductor electronics in the newly emerging discipline of spin electronics. From a fundamental viewpoine, spin-polarization transport in a material occurs when there is an imbalance of spin populations at the Fermi energy. In ferromagnetic metals this imbalance results from a shift in the energy states available to spin-up and spin-down electrons. In practical applications, a ferromagnetic metal may be used as a source of spin-polarized electronics to be injected into a semiconductor, a superconductor or a normal metal, or to tunnel through an insulating barrier.

Handbook of Nanoscience, Engineering, and Technology

Handbook of Nanoscience, Engineering, and Technology PDF Author: William A. Goddard III
Publisher: CRC Press
ISBN: 1439860165
Category : Technology & Engineering
Languages : en
Pages : 1075

Get Book Here

Book Description
In his 1959 address, "There is Plenty of Room at the Bottom," Richard P. Feynman speculated about manipulating materials atom by atom and challenged the technical community "to find ways of manipulating and controlling things on a small scale." This visionary challenge has now become a reality, with recent advances enabling atomistic-level tailoring and control of materials. Exemplifying Feynman’s vision, Handbook of Nanoscience, Engineering, and Technology, Third Edition continues to explore innovative nanoscience, engineering, and technology areas. Along with updating all chapters, this third edition extends the coverage of emerging nano areas even further. Two entirely new sections on energy and biology cover nanomaterials for energy storage devices, photovoltaics, DNA devices and assembly, digital microfluidic lab-on-a-chip, and much more. This edition also includes new chapters on nanomagnet logic, quantum transport at the nanoscale, terahertz emission from Bloch oscillator systems, molecular logic, electronic optics in graphene, and electromagnetic metamaterials. With contributions from top scientists and researchers from around the globe, this color handbook presents a unified, up-to-date account of the most promising technologies and developments in the nano field. It sets the stage for the next revolution of nanoscale manufacturing—where scalable technologies are used to manufacture large numbers of devices with complex functionalities.

Ferroelectric Domain Walls

Ferroelectric Domain Walls PDF Author: Jill Guyonnet
Publisher: Springer Science & Business Media
ISBN: 3319057502
Category : Science
Languages : en
Pages : 167

Get Book Here

Book Description
Using the nano metric resolution of atomic force microscopy techniques, this work explores the rich fundamental physics and novel functionalities of domain walls in ferroelectric materials, the nano scale interfaces separating regions of differently oriented spontaneous polarization. Due to the local symmetry-breaking caused by the change in polarization, domain walls are found to possess an unexpected lateral piezoelectric response, even when this is symmetry-forbidden in the parent material. This has interesting potential applications in electromechanical devices based on ferroelectric domain patterning. Moreover, electrical conduction is shown to arise at domain walls in otherwise insulating lead zirconate titanate, the first such observation outside of multiferroic bismuth ferrite, due to the tendency of the walls to localize defects. The role of defects is then explored in the theoretical framework of disordered elastic interfaces possessing a characteristic roughness scaling and complex dynamic response. It is shown that the heterogeneous disorder landscape in ferroelectric thin films leads to a breakdown of the usual self-affine roughness, possibly related to strong pinning at individual defects. Finally, the roles of varying environmental conditions and defect densities in domain switching are explored and shown to be adequately modelled as a competition between screening effects and pinning.

Advances in Thin Films, Nanostructured Materials, and Coatings

Advances in Thin Films, Nanostructured Materials, and Coatings PDF Author: Alexander D. Pogrebnjak
Publisher: Springer
ISBN: 9811361339
Category : Technology & Engineering
Languages : en
Pages : 380

Get Book Here

Book Description
This book highlights the latest advances in chemical and physical methods for thin-film deposition and surface engineering, including ion- and plasma-assisted processes, focusing on explaining the synthesis/processing–structure–properties relationship for a variety of thin-film systems. It covers topics such as advances in thin-film synthesis; new thin-film materials: diamond-like films, granular alloys, high-entropy alloys, oxynitrides, and intermetallic compounds; ultra-hard, wear- and oxidation-resistant and multifunctional coatings; superconducting, magnetic, semiconducting, and dielectric films; electrochemical and electroless depositions; thin-film characterization and instrumentation; and industrial applications.

Nanophenomena at Surfaces

Nanophenomena at Surfaces PDF Author: Michail Michailov
Publisher: Springer Science & Business Media
ISBN: 3642165109
Category : Technology & Engineering
Languages : en
Pages : 294

Get Book Here

Book Description
This book presents the state of the art in nanoscale surface physics. It outlines contemporary trends in the field covering a wide range of topical areas: atomic structure of surfaces and interfaces, molecular films and polymer adsorption, biologically inspired nanophysics, surface design and pattern formation, and computer modeling of interfacial phenomena. Bridging "classical" and "nano" concepts, the present volume brings attention to the physical background of exotic condensed-matter properties. The book is devoted to Iwan Stranski and Rostislaw Kaischew, remarkable scientists, who played a crucial role in setting up the theoretical fundamentals of nucleation and crystal growth phenomena in the last century.