Ab Initio Studies on Superconductivity in Alkali-Doped Fullerides

Ab Initio Studies on Superconductivity in Alkali-Doped Fullerides PDF Author: Yusuke Nomura
Publisher: Springer
ISBN: 9811014426
Category : Technology & Engineering
Languages : en
Pages : 158

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Book Description
This book covers high-transition temperature (Tc) s-wave superconductivity and the neighboring Mott insulating phase in alkali-doped fullerides. The author presents (1) a unified theoretical description of the phase diagram and (2) a nonempirical calculation of Tc. For these purposes, the author employs an extension of the DFT+DMFT (density-functional theory + dynamical mean-field theory). He constructs a realistic electron–phonon-coupled Hamiltonian with a newly formulated downfolding method. The Hamiltonian is analyzed by means of the extended DMFT. A notable aspect of the approach is that it requires only the crystal structure as a priori knowledge. Remarkably, the nonempirical calculation achieves for the first time a quantitative reproduction of the experimental phase diagram including the superconductivity and the Mott phase. The calculated Tc agrees well with the experimental data, with the difference within 10 K. The book provides details of the computational scheme, which can also be applied to other superconductors and other phonon-related topics. The author clearly describes a superconducting mechanism where the Coulomb and electron–phonon interactions show an unusual cooperation in the superconductivity thanks to the Jahn–Teller nature of the phonons.

Ab Initio Studies on Superconductivity in Alkali-Doped Fullerides

Ab Initio Studies on Superconductivity in Alkali-Doped Fullerides PDF Author: Yusuke Nomura
Publisher: Springer
ISBN: 9811014426
Category : Technology & Engineering
Languages : en
Pages : 158

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Book Description
This book covers high-transition temperature (Tc) s-wave superconductivity and the neighboring Mott insulating phase in alkali-doped fullerides. The author presents (1) a unified theoretical description of the phase diagram and (2) a nonempirical calculation of Tc. For these purposes, the author employs an extension of the DFT+DMFT (density-functional theory + dynamical mean-field theory). He constructs a realistic electron–phonon-coupled Hamiltonian with a newly formulated downfolding method. The Hamiltonian is analyzed by means of the extended DMFT. A notable aspect of the approach is that it requires only the crystal structure as a priori knowledge. Remarkably, the nonempirical calculation achieves for the first time a quantitative reproduction of the experimental phase diagram including the superconductivity and the Mott phase. The calculated Tc agrees well with the experimental data, with the difference within 10 K. The book provides details of the computational scheme, which can also be applied to other superconductors and other phonon-related topics. The author clearly describes a superconducting mechanism where the Coulomb and electron–phonon interactions show an unusual cooperation in the superconductivity thanks to the Jahn–Teller nature of the phonons.

Fullerenes: Status And Perspectives - Proceedings Of The First Italian Workshop

Fullerenes: Status And Perspectives - Proceedings Of The First Italian Workshop PDF Author: C Taliani
Publisher: World Scientific
ISBN: 9814554472
Category :
Languages : en
Pages : 248

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Book Description
This book gives an overview of one of the most challenging subject of the 90s: The physical and chemical properties of fullerenes and doped fullerenes — one year after the discovery of the high Tc superconductivity in alkali-metal doped C60.The major topics covered by the book are: synthesis and doping; higher fullerenes; optical and photoelectron spectroscopy; electric and magnetic properties; fullerenes in outer space and nonlinear optical properties superconductivity.Among the contributors to the book are leading world scientists in the field.

An "ab-initio" Study on Superconductivity in the Light Group IV a Hydrides and Melting of the Alkali Metals

An Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 122

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Book Description


Fullerene Research, 1994-1996

Fullerene Research, 1994-1996 PDF Author: Tibor Braun
Publisher: World Scientific
ISBN: 9789810233457
Category : Science
Languages : en
Pages : 536

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Book Description
The book is a follow-up to the computerized fullerene bibliography related to the 1985-1993 period. It is a well-indexed overview of the journal literature on a topic for which the 1996 Nobel Prize in Chemistry was awarded. It is an indispensable tool for any specialist interested in the literature of one of the most researched interdisciplinary topics in the sciences.

Fullerene Research 1994-1996, A Computer-generated Cross-indexed Bibiliography Of Journal Literature

Fullerene Research 1994-1996, A Computer-generated Cross-indexed Bibiliography Of Journal Literature PDF Author: Tibor Braun
Publisher: World Scientific
ISBN: 9814496596
Category : Technology & Engineering
Languages : en
Pages : 528

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Book Description
The book is a follow-up to the computerized fullerene bibliography related to the 1985-1993 period. It is a well-indexed overview of the journal literature on a topic for which the 1996 Nobel Prize in Chemistry was awarded. It is an indispensable tool for any specialist interested in the literature of one of the most researched interdisciplinary topics in the sciences.

Asia-pacific Physics Conference - Proceedings Of The Fifth Conference (In 2 Volumes)

Asia-pacific Physics Conference - Proceedings Of The Fifth Conference (In 2 Volumes) PDF Author: A C Chew
Publisher: World Scientific
ISBN: 9814551546
Category :
Languages : en
Pages : 1407

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Book Description


Fullerene Research 1985: 1993

Fullerene Research 1985: 1993 PDF Author: Tibor Braun
Publisher: World Scientific
ISBN: 9814501298
Category : Technology & Engineering
Languages : en
Pages : 488

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Book Description
This volume contains very carefully compiled material presenting bibliographic descriptions of approximately 3500 papers, with a computer-generated index on authors, subject headings, corporate addresses and journals. There are many on-line services available on fullerenes, but they serve mainly current-awareness functions; none of them is selectively complete and carefully indexed and none can replace a complete retrospective bibliography, which most researchers in the field would want to have on hand in their laboratories and offices.

Comprehensive Semiconductor Science and Technology

Comprehensive Semiconductor Science and Technology PDF Author:
Publisher: Newnes
ISBN: 0080932282
Category : Science
Languages : en
Pages : 3572

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Book Description
Semiconductors are at the heart of modern living. Almost everything we do, be it work, travel, communication, or entertainment, all depend on some feature of semiconductor technology. Comprehensive Semiconductor Science and Technology, Six Volume Set captures the breadth of this important field, and presents it in a single source to the large audience who study, make, and exploit semiconductors. Previous attempts at this achievement have been abbreviated, and have omitted important topics. Written and Edited by a truly international team of experts, this work delivers an objective yet cohesive global review of the semiconductor world. The work is divided into three sections. The first section is concerned with the fundamental physics of semiconductors, showing how the electronic features and the lattice dynamics change drastically when systems vary from bulk to a low-dimensional structure and further to a nanometer size. Throughout this section there is an emphasis on the full understanding of the underlying physics. The second section deals largely with the transformation of the conceptual framework of solid state physics into devices and systems which require the growth of extremely high purity, nearly defect-free bulk and epitaxial materials. The last section is devoted to exploitation of the knowledge described in the previous sections to highlight the spectrum of devices we see all around us. Provides a comprehensive global picture of the semiconductor world Each of the work's three sections presents a complete description of one aspect of the whole Written and Edited by a truly international team of experts

Superconductivity in the Alkali-doped Fullerides

Superconductivity in the Alkali-doped Fullerides PDF Author: Yasutami Takada
Publisher:
ISBN:
Category :
Languages : en
Pages : 10

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Book Description


INIS Atomindex

INIS Atomindex PDF Author:
Publisher:
ISBN:
Category : Nuclear energy
Languages : en
Pages : 682

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Book Description