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Ab initio studies on superconductivi...

Nomura, Yusuke.

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Ab initio studies on superconductivity in alkali-doped fullerides

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Ab initio studies on superconductivity in alkali-doped fullerides/ by Yusuke Nomura.
作者:	Nomura, Yusuke.
出版者:	Singapore :Springer Singapore : : 2016.,
面頁冊數:	xx, 143 p. :ill. (some col.), digital ;24 cm.
內容註:	Introduction to superconductivity in alkali-doped fullerides -- Methods: Ab initio downfolding and model-calculation techniques -- Application of cDFPT to alkali-doped fullerides -- Analysis of low-energy Hamiltonians with extended DMFT -- Concluding remarks.
Contained By:	Springer eBooks
標題:	Superconductivity. -
電子資源:	http://dx.doi.org/10.1007/978-981-10-1442-0
ISBN:	9789811014420

Ab initio studies on superconductivity in alkali-doped fullerides
Nomura, Yusuke.

Ab initio studies on superconductivity in alkali-doped fullerides[electronic resource] /by Yusuke Nomura. - Singapore :Springer Singapore :2016. - xx, 143 p. :ill. (some col.), digital ;24 cm. - Springer theses,2190-5053. - Springer theses..

Introduction to superconductivity in alkali-doped fullerides -- Methods: Ab initio downfolding and model-calculation techniques -- Application of cDFPT to alkali-doped fullerides -- Analysis of low-energy Hamiltonians with extended DMFT -- Concluding remarks.

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.

ISBN: 9789811014420

Standard No.: 10.1007/978-981-10-1442-0doiSubjects--Topical Terms:

605754
Superconductivity.

LC Class. No.: QC611.92

Dewey Class. No.: 537.623

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520 $a 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.
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