Two-Dimensional Electron Systems

Two-Dimensional Electron Systems PDF Author: E.Y. Andrei
Publisher: Springer Science & Business Media
ISBN: 9401512868
Category : Science
Languages : en
Pages : 398

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Book Description
Recent studies on two-dimensional systems have led to new insights into the fascinating interplay between physical properties and dimensionality. Many of these ideas have emerged from work on electrons bound to the surface of a weakly polarizable substrate such as liquid helium or solid hydrogen. The research on this subject continues to be at the forefront of modern condensed matter physics because of its fundamental simplicity as well as its connection to technologically useful devices. This book is the first comprehensive overview of experimental and theoretical research in this exciting field. It is intended to provide a coherent introduction for graduate students and non-experts, while at the same time serving as a reference source for active researchers in the field. The chapters are written by individuals who made significant contributions and cover a variety of specialized topics. These include the origin of the surface states, tunneling and magneto-tunneling out of these states, the phase diagram, collective excitations, transport and magneto-transport.

Two-Dimensional Electron Systems

Two-Dimensional Electron Systems PDF Author: E.Y. Andrei
Publisher: Springer Science & Business Media
ISBN: 9401512868
Category : Science
Languages : en
Pages : 398

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Book Description
Recent studies on two-dimensional systems have led to new insights into the fascinating interplay between physical properties and dimensionality. Many of these ideas have emerged from work on electrons bound to the surface of a weakly polarizable substrate such as liquid helium or solid hydrogen. The research on this subject continues to be at the forefront of modern condensed matter physics because of its fundamental simplicity as well as its connection to technologically useful devices. This book is the first comprehensive overview of experimental and theoretical research in this exciting field. It is intended to provide a coherent introduction for graduate students and non-experts, while at the same time serving as a reference source for active researchers in the field. The chapters are written by individuals who made significant contributions and cover a variety of specialized topics. These include the origin of the surface states, tunneling and magneto-tunneling out of these states, the phase diagram, collective excitations, transport and magneto-transport.

Spin-orbit Coupling Effects in Two-Dimensional Electron and Hole Systems

Spin-orbit Coupling Effects in Two-Dimensional Electron and Hole Systems PDF Author: Roland Winkler
Publisher: Springer Science & Business Media
ISBN: 9783540011873
Category : Technology & Engineering
Languages : en
Pages : 244

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Book Description
The first part provides a general introduction to the electronic structure of quasi-two-dimensional systems with a particular focus on group-theoretical methods. The main part of the monograph is devoted to spin-orbit coupling phenomena at zero and nonzero magnetic fields. Throughout the book, the main focus is on a thorough discussion of the physical ideas and a detailed interpretation of the results. Accurate numerical calculations are complemented by simple and transparent analytical models that capture the important physics.

Ground States of the Two-Dimensional Electron System at Half-Filling under Hydrostatic Pressure

Ground States of the Two-Dimensional Electron System at Half-Filling under Hydrostatic Pressure PDF Author: Katherine A. Schreiber
Publisher: Springer Nature
ISBN: 3030263223
Category : Science
Languages : en
Pages : 112

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Book Description
This thesis presents the discovery of a surprising phase transition between a topological and a broken symmetry phase. Phase transitions between broken symmetry phases involve a change in symmetry and those between topological phases require a change in topological order; in rare cases, however, transitions may occur between these two broad classes of phases in which the vanishing of the topological order is accompanied by the emergence of a broken symmetry. This thesis describes observations of such a special phase transition in the two-dimensional electron gas confined in the GaAs/AlGaAs structures. When tuned by hydrostatic pressure, the ν = 5/2 and ν = 7/2 fractional quantum Hall states, believed to be prototypical non-Abelian topological phases of the Pfaffian universality class, give way to an electronic nematic phase. Remarkably, the fractional quantum Hall states involved are due to pairing of emergent particles called composite fermions. The findings reported here, therefore, provide an interesting example of competition of pairing and nematicity. This thesis provides an introduction to quantum Hall physics of the two-dimensional electron gas, contains details of the high pressure experiments, and offers a discussion of the ramifications and of the origins of the newly reported phase transition.

Magneto Photoluminescence and Ultrafast Spectroscopy on High-Mobility Two-Dimensional Electron Systems

Magneto Photoluminescence and Ultrafast Spectroscopy on High-Mobility Two-Dimensional Electron Systems PDF Author: Patrick Schröter
Publisher: Cuvillier Verlag
ISBN: 3865372317
Category :
Languages : en
Pages : 120

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Book Description


Correlation Effects in Low-Dimensional Electron Systems

Correlation Effects in Low-Dimensional Electron Systems PDF Author: Ayao Okiji
Publisher: Springer Science & Business Media
ISBN: 3642851290
Category : Science
Languages : en
Pages : 223

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Book Description
Correlation Effects in Low-Dimensional Electron Systems describes recent developments in theoretical condensed-matter physics, emphasizing exact solutions in one dimension including conformal-field theoretical approaches, the application of quantum groups, and numerical diagonalization techniques. Various key properties are presented for two-dimensional, highly correlated electron systems.

The Physics of the Two-Dimensional Electron Gas

The Physics of the Two-Dimensional Electron Gas PDF Author: J.T. Devreese
Publisher: Springer Science & Business Media
ISBN: 1461319072
Category : Science
Languages : en
Pages : 444

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Book Description
The 1986 Advanced Study Institute on "The Physics of the two-Dimen sional Electron Gas" took place at the Conference Centre liTer Helme", close to Oostende (Belgium), from June 2 till 16, 1986. We were motivated to organize this Advanced Study Institute in view of the recent experimental and theoretical progress in the study of the two-dimensional electron gas. An additional motivation was our own theore tical interest in cyclotron resonance in two-dimensional electron systems at our institute. It is my pleasure to thank several instances and people who made this Advanced Study Institute possible. First of all, the sponsor of the Advanced Study Institute, the NATO Scientific Committee. Furthermore, the co sponsors: Agfa Gevaert, Bell Telephone Mfg. Co. N.V., Burroughs Belgium. Control Data. Digital Equipment Corporation, Esso Belgium. European Research Office (USA). Kredietbank. National Science Foundation (USA). Special thanks are due to the members of the Program Committee and the members of the Organizing Committee. I would also like to thank Mrs. H. Evans for typing assistance.

Magnetization Measurements on Low-dimensional Electron Systems in High-mobility GaAs and SiGe Heterostructures

Magnetization Measurements on Low-dimensional Electron Systems in High-mobility GaAs and SiGe Heterostructures PDF Author: Marc Wilde
Publisher: Cuvillier Verlag
ISBN: 3865373976
Category :
Languages : en
Pages : 135

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Book Description


New Horizons in Low-Dimensional Electron Systems

New Horizons in Low-Dimensional Electron Systems PDF Author: H. Aoki
Publisher: Springer Science & Business Media
ISBN: 9401131902
Category : Science
Languages : en
Pages : 471

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Book Description
In Bird of Passage by Rudolf Peierls, we find a paragraph in which he de scribes his Cambridge days in the 1930s: On these [relativistic field theory] problems my main contacts were Dirac, and the younger theoreticians. These included in particular Nevill (now Sir Nevill) Mott, perhaps the friendliest among many kind and friendly people we met then. Professor Kamimura became associated with Sir Rudolf Peierls in the 1950s, when he translated, with his colleagues, Peierls's 1955 textbook, Quantum Theory of Solids, into Japanese. This edition, to which Sir Rudolf himself contributed a preface, benefitted early generations of Japanese solid state physicists. Later in 1974/5, during a sabbatical year spent at the Cavendish Laboratory, Professor Kamimura met and began a long association with Sir Nevill Mott. In particular, they developed ideas for disordered systems. One of the outcomes is a paper coauthored by them on ESR-induced variable range hopping in doped semiconductors. A series of works on disordered systems, together with those on two-dimensional systems, have served as building blocks for Physics of Interacting Electrons in Disordered Systems, in the International Series of Monographs on Physics, coauthored by Aoki and published in 1989 by the Oxford University Press. Soon after Professor Kamimura obtained a D. Sc. in 1959 for the work on the ligand field theory under the supervision ofMasao Kotani, his strong con nections in the international physical community began when he worked at the Bell Telephone Laboratories in 1961/64.

Quantum Theory of the Electron Liquid

Quantum Theory of the Electron Liquid PDF Author: Gabriele Giuliani
Publisher: Cambridge University Press
ISBN: 1139471589
Category : Science
Languages : en
Pages : 779

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Book Description
Modern electronic devices and novel materials often derive their extraordinary properties from the intriguing, complex behavior of large numbers of electrons forming what is known as an electron liquid. This book provides an in-depth introduction to the physics of the interacting electron liquid in a broad variety of systems, including metals, semiconductors, artificial nano-structures, atoms and molecules. One, two and three dimensional systems are treated separately and in parallel. Different phases of the electron liquid, from the Landau Fermi liquid to the Wigner crystal, from the Luttinger liquid to the quantum Hall liquid are extensively discussed. Both static and time-dependent density functional theory are presented in detail. Although the emphasis is on the development of the basic physical ideas and on a critical discussion of the most useful approximations, the formal derivation of the results is highly detailed and based on the simplest, most direct methods.

The Quantum Hall Effect

The Quantum Hall Effect PDF Author: Daijiro Yoshioka
Publisher: Springer Science & Business Media
ISBN: 3662050161
Category : Science
Languages : en
Pages : 214

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Book Description
The fractional quantum Hall effect has opened up a new paradigm in the study of strongly correlated electrons and it has been shown that new concepts, such as fractional statistics, anyon, chiral Luttinger liquid and composite particles, are realized in two-dimensional electron systems. This book explains the quantum Hall effects together with these new concepts starting from elementary quantum mechanics.