Charge Transfer Upon Contact Between Metals and Insulators
Author | : Donald Ora Van Ostenburg |
Publisher | : |
Total Pages | : 144 |
Release | : 1956 |
Genre | : Electric charge and distribution |
ISBN | : |
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Author | : Donald Ora Van Ostenburg |
Publisher | : |
Total Pages | : 144 |
Release | : 1956 |
Genre | : Electric charge and distribution |
ISBN | : |
Author | : |
Publisher | : |
Total Pages | : |
Release | : 2014 |
Genre | : |
ISBN | : |
Topological insulators are of interest for many applications in electronics and optoelectronics, but harnessing their unique properties requires detailed understanding and control of charge injection at electrical contacts. Here we present large-scale ab initio calculations of the electronic properties of Au, Ni, Pt, Pd, and graphene contacts to Bi2Se3. We show that regardless of the metal, the Fermi level is located in the conduction band, leading to n-type Ohmic contact to the first quintuplet. Furthermore, we find strong charge transfer and band-bending in the first few quintuplets, with no Schottky barrier for charge injection even when the topoplogical insulator is undoped. Our calculations indicate that Au and graphene leave the spin-momentum locking mostly unaltered, but on the other hand, Ni, Pd, and Pt strongly hybridize with Bi2Se3 and relax spin-momentum locking. In conclusion, our results indicate that judicious choice of the contact metal is essential to reveal the unique surface features of topological insulators.
Author | : L.H. Lee |
Publisher | : Springer Science & Business Media |
Total Pages | : 476 |
Release | : 1991-02-28 |
Genre | : Science |
ISBN | : 0306434709 |
Evolved as a reference book for participants at a short annual fall course at the State University of New York at New Paltz. This first volume concentrates on adhesion with or without the use of an adhesive. Second volume title 'Adhesive bonding' deals with bonding with the aid of adhesives.
Author | : A.M. Kuznetrsov |
Publisher | : CRC Press |
Total Pages | : 640 |
Release | : 2020-09-23 |
Genre | : Science |
ISBN | : 1000141209 |
This book covers the various processes of charge transfer in physics, chemistry and biology and shows the similarities and differences between them. It focuses on the physical mechanisms of the elementary processes to demonstrate their common physical nature.
Author | : John Wright Peterson |
Publisher | : |
Total Pages | : 156 |
Release | : 1953 |
Genre | : Electric charge and distribution |
ISBN | : |
Author | : Zhong Lin Wang |
Publisher | : Springer Nature |
Total Pages | : 1955 |
Release | : 2023-09-26 |
Genre | : Technology & Engineering |
ISBN | : 303128111X |
This handbook comprehensively covers the rapidly evolving field of power generation using triboelectric nanogenerators. Since their emergence in 2012, triboelectric nanogenerators have experienced fast development both in fundamental science aspects and technological innovations resulting in a plethora of outstanding applications and commercial opportunities in e.g. micro-nano energy systems, self-powered sensors, blue energy, and high-voltage power sources. The Handbook of Triboelectric Nanogenerators provides an indispensable overview of the state of the art in the field. It begins with a review of the physical and technological fundamentals and provides detailed coverage of triboelectric nanogenerators for cutting-edge applications from wearable electronics and medical implants to smart home sensing devices and human–machine interfacing. Edited and authored by active researchers in the field, the handbook offers a wealth of information for applied physicists and chemists, as well as materials scientists and engineers. In addition, mechanical and electronic engineers working in the fields of energy scavenging, power sources, and sensor-related application development will benefit greatly from the technical information presented in this groundbreaking reference work.
Author | : Nima Gharib |
Publisher | : Elsevier |
Total Pages | : 276 |
Release | : 2022-08-18 |
Genre | : Technology & Engineering |
ISBN | : 0128232552 |
Electrostatic Dust Mitigation and Manipulation Techniques for Planetary Dust explains how to control and remove dust in space due to the presence of a vacuum, abrasiveness of dust particles and electrostatic charge on particles. The book introduces innovative technologies that use electrostatic and di-electrophoretic forces to remove and transport small particles away from surfaces. In addition, it discusses how to resolve thermal control problems and reduce lung inhalation and eye irritation problems. The book includes two abrasive wear test devices that were designed to study the rate of volume wear for di?erent materials when subjected to lunar dust simulant of di?erent size ranges. This will be an ideal resource for space system engineers, space exploration researchers, and advanced students and professionals in space engineering. Provides a comprehensive background on lunar and Martian dust properties and challenges and compares currently available mitigation strategies Highlights the problems from dust on various space systems and crew Features discrete element models which were created and calibrated based on experimental results to study the capacity of the proposed technique for removing and cleaning dust in a planetary environment
Author | : Florian Gebhard |
Publisher | : Springer |
Total Pages | : 318 |
Release | : 2003-07-01 |
Genre | : Technology & Engineering |
ISBN | : 3540148582 |
Little do we reliably know about the Mott transition, and we are far from a complete understanding of the metal --insulator transition due to electr- electron interactions. Mott summarized his basic ideas on the subject in his wonderful book Metal--Insulator nansitions that first appeared in 1974 11. 1). In his view, a Motk insulator displays a gap for charge-carrying excitations due to electron cowelations, whose importance is expressed by the presence of local magnetic moments regardless of whether or not they are ordered. Since the subject is far from being settled, different opinions on specific aspects of the Mott transition still persist. This book naturally embodies my own understanding of the phenomenon, inspired by the work of the late Sir Kevill Mott. The purpose of this book is twofold: first, to give a detailed presen- tion of the basic theoretical concopts for Mott insulators and, second, to test these ideas against the results from model calculations. For this purpose the Hubbard model and some of its derivatives are best suited. The Hubbard model describes a Mott transition with a mere minimum of tunable par- eters, and various exact statements and even exact solutions exist in certain limiting cases. Exact solutions not only allow us to test our basic ideas, but also help to assess the quality of approxin~ate theories for correlated electron systems.