Emergent superconductivity in low dimensions
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Bibliographic Information
Emergent superconductivity in low dimensions
（Springer theses : recognizing outstanding Ph. D. research）
Springer, c2018
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Includes bibliographical references
Description and Table of Contents
Description
This book explores the relationship between electronic correlations, dimensionality, inhomogeneities, and superconductivity in low-dimensional systems by studying single crystals of the quasi-one-dimensional Na2- Mo6Se6, composed of MoSe filaments weakly coupled by Na atoms and subject to intrinsic disorder ( > 0). It shows that the Na2- Mo6Se6 displays strong electronic correlations in its normal state, whereas a superconducting ground state emerges from Anderson localized electrons. Two novel behaviors of the superconducting state are observed: first, a disorder induced enhancement of the superconducting transition temperature; second, a reentrant phase coherence with increasing temperature, magnetic field, and current. It also analyzes the intrinsic properties of Na2- Mo6Se6 are analyzed to offer a thorough understanding of these phenomena. The emergence of superconductivity in such low-dimensional systems provides a fruitful playground to explore electronic order and correlations.
Table of Contents
Superconductivity: History and Motivations.- Introduction and theory.- Experimental methods.- The quasi-one-dimensional Na2 Mo6Se6.- The electronic normal state in Na2 Mo6Se6.- Superconducting transition and pairing enhancement by disorder.- Reentrant phase coherence by Josephson coupling.- Summary and Outlook.
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