Two-dimensional Metal-insulator Transition PDF Download
Are you looking for read ebook online? Search for your book and save it on your Kindle device, PC, phones or tablets. Download Two-dimensional Metal-insulator Transition PDF full book. Access full book title Two-dimensional Metal-insulator Transition by Junren Shi. Download full books in PDF and EPUB format.
Author: Junren Shi
Publisher:
ISBN:
Category :
Languages : en
Pages : 184
Get Book Here
Book Description
Author: Junren Shi
Publisher:
ISBN:
Category :
Languages : en
Pages : 184
Get Book Here
Book Description
Author: Svetlana Anisimova
Publisher: LAP Lambert Academic Publishing
ISBN: 9783838369402
Category :
Languages : en
Pages : 164
Get Book Here
Book Description
The interplay between strong electron-electron interactions and disorder has been a long-standing question in condensed matter physics. The discovery of the metal-insulator transition (MIT) in two-dimensional (2D) electron systems challenged one of the most influential theories of the last century which stated that "there is no true metallic state in 2D". However, the scaling theory of localization did not account for interactions between electrons. This book provides recent thermodynamic and transport experimental findings which indicate that MIT in 2D can be considered as a quantum phase transition. In the ballistic regime, strong interactions between carriers lead to Pauli spin susceptibility growing critically at low electron densities. Such behavior is characteristic in the close vicinity of a phase transition. In the immediate vicinity of the MIT, both the resistance and the effective interactions exhibit a fan-like spread as the MIT is crossed. A resistance-interaction flow diagram clearly reveals a quantum critical point. The book should be especially useful to graduate students, postdoctoral researches, or scientists working in the field of mesoscopic physics.
Author: Vladimir Dobrosavljevic
Publisher: Oxford University Press
ISBN: 0199592594
Category : Science
Languages : en
Pages : 583
Get Book Here
Book Description
When many particles come together how do they organize themselves? And what destroys this organization? Combining experiments and theory, this book describes intriguing quantum phases - metals, superconductors and insulators - and transitions between them. It captures the excitement and the controversies on topics at the forefront of research.
Author: Nobuo Furukawa
Publisher:
ISBN:
Category : Hubbard model
Languages : en
Pages : 9
Get Book Here
Book Description
Author: Florian Gebhard
Publisher: Springer Science & Business Media
ISBN: 3540614818
Category : Technology & Engineering
Languages : en
Pages : 337
Get Book Here
Book Description
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.
Author: Alexandre Lewalle
Publisher:
ISBN:
Category :
Languages : en
Pages :
Get Book Here
Book Description
Author: Lei Qiu
Publisher:
ISBN:
Category : Low-dimensional topology
Languages : en
Pages : 106
Get Book Here
Book Description
This thesis consists of four main parts. The first part introduces the history of the concept of a Wigner crystal and recent theoretical developments based on this concept, which mainly raises the idea of having intermediate phases near the boundary of the Wigner crystal-liquid transition. It also briefly introduces another long standing puzzle: 2D zero field metal-insulator transition. The second part studies the solid phase known as the "Wigner crystal" (WC) of two-dimensional holes observed in weak perpendicular magnetic field. Magnetoresistivity and thermodynamic compressibility in several densities and temperatures are measured and discussed. It strongly suggests that the metal-insulator transition should be closely related to the WC-liquid transition since the experimental phase diagram coins with theoretical phase diagram. The third part investigates the phase transition between observed the solid phase and liquid state. A new intermediate phase called a micro-emulsion phase is discovered. Its isotropic feature and response to disorder level are discussed. Finally, the fourth part introduces a new perspective, which is derived from the conclusions of the second and third part, towards the two-decade puzzle named the two dimensional metal-insulator transition (2D MIT). Scaling behavior of resistivity of dilute holes in GaAs quantum well on the insulating side of 2D MIT is found for the first time. Overall, our studies indicate the observation of a new WC phase at low magnetic field. Through studying its transition to liquid state, a new intermediate phase is identified. By applying the new perspective gained, the scaling of resistivity is observed and strongly suggests that the 2D MIT is a quantum phase transition of WC and micro-emulsion phases.
Author: Yael Hanein
Publisher:
ISBN:
Category :
Languages : en
Pages : 56
Get Book Here
Book Description
Author: Xuan Gao
Publisher:
ISBN:
Category :
Languages : en
Pages : 270
Get Book Here
Book Description
Author: Kuo-Ping Li
Publisher:
ISBN:
Category : Electron transport
Languages : en
Pages : 308
Get Book Here
Book Description
