03673nam 22006015 450 991034950710332120200704163631.03-030-29825-610.1007/978-3-030-29825-8(CKB)4100000009375175(DE-He213)978-3-030-29825-8(MiAaPQ)EBC5906787(PPN)258304707(EXLCZ)99410000000937517520190927d2019 u| 0engurnn|008mamaatxtrdacontentcrdamediacrrdacarrierOn the Nature of Charge Density Waves, Superconductivity and Their Interplay in 1T-TiSe₂ /by Chuan Chen1st ed. 2019.Cham :Springer International Publishing :Imprint: Springer,2019.1 online resource (XVI, 105 p. 35 illus., 31 illus. in color.) Springer Theses, Recognizing Outstanding Ph.D. Research,2190-50533-030-29824-8 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.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 CDW and SC physics in TiSe2. .Springer Theses, Recognizing Outstanding Ph.D. Research,2190-5053SuperconductivitySuperconductorsMathematical physicsPhase transitions (Statistical physics)Strongly Correlated Systems, Superconductivityhttps://scigraph.springernature.com/ontologies/product-market-codes/P25064Theoretical, Mathematical and Computational Physicshttps://scigraph.springernature.com/ontologies/product-market-codes/P19005Phase Transitions and Multiphase Systemshttps://scigraph.springernature.com/ontologies/product-market-codes/P25099Superconductivity.Superconductors.Mathematical physics.Phase transitions (Statistical physics).Strongly Correlated Systems, Superconductivity.Theoretical, Mathematical and Computational Physics.Phase Transitions and Multiphase Systems.530.41530.41Chen Chuanauthttp://id.loc.gov/vocabulary/relators/aut1061175MiAaPQMiAaPQMiAaPQBOOK9910349507103321On the Nature of Charge Density Waves, Superconductivity and Their Interplay in 1T-TiSe₂2517784UNINA