On the Nature of Charge Density Waves, Superconductivity and Their Interplay in 1T-TiSe₂
Author:   Chuan Chen
Publisher:   Springer Nature Switzerland AG
Edition:   1st ed. 2019
ISBN:  

9783030298241


Pages:   105
Publication Date:   08 October 2019
Format:   Hardback
Availability:   Manufactured on demand   Availability explained
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On the Nature of Charge Density Waves, Superconductivity and Their Interplay in 1T-TiSe₂


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Overview

This thesis presents analytical theoretical studies on the interplay between charge density waves (CDW) and superconductivity (SC) in the actively studied transition-metal dichalcogenide 1T-TiSe2. It begins by reapproaching a years-long debate over the nature of the phase transition to the  commensurate CDW (CCDW) state and the role played by the intrinsic tendency towards excitonic condensation in this system.  A Ginzburg-Landau phenomenological theory was subsequently developed to understand the experimentally observed transition from commensurate to incommensurate CDW (ICDW) order with doping or pressure, and the emergence of a superconducting dome that coexists with ICDW. Finally, to characterize microscopically the effects of the interplay between CDW and SC, the spectrum of CDW fluctuations beyond mean-field was studied in detail. In the aggregate, the work reported here provides an encompassing understanding of what are possibly key microscopic underpinnings of the CDWand SC physics in TiSe2.   

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Author:   Chuan Chen
Publisher:   Springer Nature Switzerland AG
Imprint:   Springer Nature Switzerland AG
Edition:   1st ed. 2019
Weight:   0.454kg
ISBN:  

9783030298241


ISBN 10:   3030298248
Pages:   105
Publication Date:   08 October 2019
Audience:   Professional and scholarly ,  Professional & Vocational
Format:   Hardback
Publisher's Status:   Active
Availability:   Manufactured on demand   Availability explained
We will order this item for you from a manufactured on demand supplier.

Table of Contents

Introduction.- Excitonic character of CDWin TiSe2.-  Phenomenological model of coexisting CDWand superconductivity in TiSe2.- Excitonic CDWfluctuations and superconductivity.- Anomalous quantum metal phase in TiSe2.- Conclusions.- Appendices.

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