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Valleytronics in 2D Materials

Author: Kuan Eng Johnson Goh

Publisher: World Scientific Publishing Company

Published: 2023-04-30

Total Pages: 0

ISBN-13: 9789811229091

Driven by the advent of two-dimensional materials, valleytronics is emerging as the next hot field of research in materials science. While the use of charge or spin degrees of freedom in electronic materials as information carriers is familiar and well-appreciated, employment of the valley degree of freedom as an information carrier has remained elusive for many decades. Shortly following the discovery of isolated graphene, 2D semiconductors such as transition metal dichalcogenides were also isolated and investigated. We now understand that these materials can have separately addressable valleys because each valley can be uniquely coupled to a spin state. This imparts the ability to address different valleys (like pseudospins) with electric field, magnetic field, or light, and there is now a real possibility to engineer practical devices based on using valley as the information carrier.Valleytronics in 2D Materials is the first book in the world on the topic of valleytronics. The reader is introduced to the concept via a brief history emphasizing the challenges that impeded its development for so long. We then dive into the valley physics of 2D semiconductors to explain the recent excitement in 2D valleytronics, the scientific investigations to confirm the addressable valleys, and the attempts to engineer valley devices for practical purposes. The text takes on a decidedly practical approach towards the subject, seeking to bring the reader quickly into the field by presenting the minimum theoretical basis for understanding the use of the valley degree of freedom in devices. A selection of key works establishing the scientific underpinnings of valley addressability and control are described to help the reader grasp the current stage of understanding, the technical foundations established, and the open questions. The renewal in valleytronics is yet unfinished, but with more than a decade of research and engineering efforts devoted in recent times, this book seeks to provide a timely reference for students, scientists and engineers to join this exciting journey and perhaps help to create the next disruption in information technology.

Valleytronics In 2d Materials

Author: Kuan Eng Johnson Goh

Publisher: World Scientific

Published: 2023-06-26

Total Pages: 360

ISBN-13: 9811229112

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2d Inorganic Materials Beyond Graphene

Author: Rao C N R

Publisher: World Scientific

Published: 2017-08-28

Total Pages: 476

ISBN-13: 1786342715

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Two-dimensional materials have had widespread applications in nanoelectronics, catalysis, gas capture, water purification, energy storage and conversion. Initially based around graphene, research has since moved on to looking at alternatives, including transitions metal dichalcogenides, layered topological insulators, metallic mono-chalcogenides, borocarbonitrides and phosphorene. This book provides a review of research in the field of these materials, including investigation into their defects, analysis on hybrid structures focusing on their properties and synthesis, and characterization and applications of 2D materials beyond graphene. It is designed to be a single-point reference for students, teachers and researchers of chemistry and its related subjects, particularly in the field of nanomaterials. Contents: Transition Metal Dichalcogenides and Other Layered Materials (Manoj K Jana and C N R Rao)Topological Valleytronics (Motohiko Ezawa)Two-Dimensional, Layered Materials as Catalysts for Oxygen Reduction Reaction (Debdyuti Mukherjee and S Sampath)Phosphorene (Arpita Paul and Umesh V Waghmare)2D van der Waals Hybrid: Structures, Properties and Devices (Md Ali Aamir, Tanweer Ahmed, Kimberly Hsieh, Saurav Islam, Paritosh Karnatak, Ranjit Kashid, Phanibhusan Singha Mahapatra, Jayanta Mishra, Tathagata Paul, Avradip Pradhan, Kallol Roy, Anindita Sahoo and Arindam Ghosh)Thermoelectric Energy Conversion in Layered Metal Chalcogenides (Satya N Guin, Ananya Banik and Kanishka Biswas)Plasma Chemical and Physical Vapour Deposition Methods and Diagnostics for 2D Materials (Majed A. Alrefae, Nicholas R Glavin, Andrey A Voevodin and Timothy S Fisher)Metal Contacts to MOS2 (Naveen Kaushik, Sameer Grover, Mandar M Deshmukh and Saurabh Lodha)Strain Dependent Properties of 2D MX2 (M = Mo and W; X = S, Se and Te) (Tribhuwan Pandey, Swastibrata Bhattacharyya and Abhishek K Singh)Point Defects, Grain Boundaries and Planar Faults in 2D h-BN and TMX2 Theory and Simulations (Anjali Singh and Umesh V Waghmare) Readership: Students, teachers and researchers of chemistry and its related subjects, particularly in the field of nanomaterials. Keywords:2D Materials;Borocarbonitrides;Phosphorene;Graphene;Catalysis;Nanomaterials;Gas Capture;Water Purification;Dichalcogenides;Topological Insulators;Mono-chalcogenidesReview:0

Spintronic 2D Materials

Author: Wenqing Liu

Publisher: Elsevier

Published: 2019-06-15

Total Pages: 320

ISBN-13: 0081021542

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Spintronic 2D Materials: Fundamentals and Applications provides an overview of the fundamental theory of 2D electronic systems that includes a selection of the most intensively investigated 2D materials. The book tells the story of 2D spintronics in a systematic and comprehensive way, providing the growing community of spintronics researchers with a key reference. Part One addresses the fundamental theoretical aspects of 2D materials and spin transport, while Parts Two through Four explore 2D material systems, including graphene, topological insulators, and transition metal dichalcogenides. Each section discusses properties, key issues and recent developments. In addition, the material growth method (from lab to mass production), device fabrication and characterization techniques are included throughout the book. Discusses the fundamentals and applications of spintronics of 2D materials, such as graphene, topological insulators and transition metal dichalcogenides Includes an in-depth look at each materials system, from material growth, device fabrication and characterization techniques Presents the latest solutions on key challenges, such as the spin lifetime of 2D materials, spin-injection efficiency, the potential proximity effects, and much more

2D Materials

Author: Phaedon Avouris

Publisher: Cambridge University Press

Published: 2017-06-29

Total Pages: 521

ISBN-13: 1316738132

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Learn about the most recent advances in 2D materials with this comprehensive and accessible text. Providing all the necessary materials science and physics background, leading experts discuss the fundamental properties of a wide range of 2D materials, and their potential applications in electronic, optoelectronic and photonic devices. Several important classes of materials are covered, from more established ones such as graphene, hexagonal boron nitride, and transition metal dichalcogenides, to new and emerging materials such as black phosphorus, silicene, and germanene. Readers will gain an in-depth understanding of the electronic structure and optical, thermal, mechanical, vibrational, spin and plasmonic properties of each material, as well as the different techniques that can be used for their synthesis. Presenting a unified perspective on 2D materials, this is an excellent resource for graduate students, researchers and practitioners working in nanotechnology, nanoelectronics, nanophotonics, condensed matter physics, and chemistry.

2D Semiconductor Materials and Devices

Author: Dongzhi Chi

Publisher: Elsevier

Published: 2019-10-19

Total Pages: 338

ISBN-13: 0128165898

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2D Semiconductor Materials and Devices reviews the basic science and state-of-art technology of 2D semiconductor materials and devices. Chapters discuss the basic structure and properties of 2D semiconductor materials, including both elemental (silicene, phosphorene) and compound semiconductors (transition metal dichalcogenide), the current growth and characterization methods of these 2D materials, state-of-the-art devices, and current and potential applications. Reviews a broad range of emerging 2D electronic materials beyond graphene, including silicene, phosphorene and compound semiconductors Provides an in-depth review of material properties, growth and characterization aspects—topics that could enable applications Features contributions from the leading experts in the field

2D Materials

Author: Paolo Bondavalli

Publisher: Walter de Gruyter GmbH & Co KG

Published: 2022-07-18

Total Pages: 189

ISBN-13: 3110656388

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The book explains, in an easy way, the diffi cult to grasp concepts behind 2D exotic material properties for physicists, materials scientists, and engineers. This is a new class of phenomena highlighted in 2D materials with strong implications on physics. Physics, also for complex phenomena, is explained in easy terms that are ideal for newcomers to the fi eld and advanced students alike. Theory and specifi c examples of materials and their intriguing properties are discussed focusing on the structure property relationships that govern materials science. Applications for each phenomenon are evoked and a roadmapping is performed.

2D Monoelemental Materials (Xenes) and Related Technologies

Author: Zongyu Huang

Publisher: CRC Press

Published: 2022-04-19

Total Pages: 166

ISBN-13: 1000562840

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Monoelemental 2D materials called Xenes have a graphene-like structure, intra-layer covalent bond, and weak van der Waals forces between layers. Materials composed of different groups of elements have different structures and rich properties, making Xenes materials a potential candidate for the next generation of 2D materials. 2D Monoelemental Materials (Xenes) and Related Technologies: Beyond Graphene describes the structure, properties, and applications of Xenes by classification and section. The first section covers the structure and classification of single-element 2D materials, according to the different main groups of monoelemental materials of different components and includes the properties and applications with detailed description. The second section discusses the structure, properties, and applications of advanced 2D Xenes materials, which are composed of heterogeneous structures, produced by defects, and regulated by the field. Features include: Systematically detailed single element materials according to the main groups of the constituent elements Classification of the most effective and widely studied 2D Xenes materials Expounding upon changes in properties and improvements in applications by different regulation mechanisms Discussion of the significance of 2D single-element materials where structural characteristics are closely combined with different preparation methods and the relevant theoretical properties complement each other with practical applications Aimed at researchers and advanced students in materials science and engineering, this book offers a broad view of current knowledge in the emerging and promising field of 2D monoelemental materials.

Spintronic 2D Materials

Author: Wenqing Liu

Publisher: Woodhead Publishing

Published: 2019-11-28

Total Pages: 322

ISBN-13: 0081021550

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Two-Dimensional Transition-Metal Dichalcogenides

Author: Alexander V. Kolobov

Publisher: Springer

Published: 2016-07-26

Total Pages: 545

ISBN-13: 3319314505

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This book summarizes the current status of theoretical and experimental progress in 2 dimensional graphene-like monolayers and few-layers of transition metal dichalcogenides (TMDCs). Semiconducting monolayer TMDCs, due to the presence of a direct gap, significantly extend the potential of low-dimensional nanomaterials for applications in nanoelectronics and nano-optoelectronics as well as flexible nano-electronics with unprecedented possibilities to control the gap by external stimuli. Strong quantum confinement results in extremely high exciton binding energies which forms an interesting platform for both fundamental studies and device applications. Breaking of spatial inversion symmetry in monolayers results in strong spin-valley coupling potentially leading to their use in valleytronics. Starting with the basic chemistry of transition metals, the reader is introduced to the rich field of transition metal dichalcogenides. After a chapter on three dimensional crystals and a description of top-down and bottom-up fabrication methods of few-layer and single layer structures, the fascinating world of two-dimensional TMDCs structures is presented with their unique atomic, electronic, and magnetic properties. The book covers in detail particular features associated with decreased dimensionality such as stability and phase-transitions in monolayers, the appearance of a direct gap, large binding energy of 2D excitons and trions and their dynamics, Raman scattering associated with decreased dimensionality, extraordinarily strong light-matter interaction, layer-dependent photoluminescence properties, new physics associated with the destruction of the spatial inversion symmetry of the bulk phase, spin-orbit and spin-valley couplings. The book concludes with chapters on engineered heterostructures and device applications such as a monolayer MoS2 transistor. Considering the explosive interest in physics and applications of two-dimensional materials, this book is a valuable source of information for material scientists and engineers working in the field as well as for the graduate students majoring in materials science.