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Tuning the charge density wave quantum critical point and the appearance of superconductivity in TiSe2

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dc.contributor.authorSangyun Lee-
dc.contributor.authorPark, T.B.-
dc.contributor.authorKim, J.-
dc.contributor.authorJung, S.-G.-
dc.contributor.authorSeong, W.K.-
dc.contributor.authorHur, N.-
dc.contributor.authorLuo, Y.-
dc.contributor.authorDuk Young Kim-
dc.contributor.authorPark, T.-
dc.date.accessioned2022-07-29T08:11:01Z-
dc.date.available2022-07-29T08:11:01Z-
dc.date.created2022-04-13-
dc.date.issued2021-09-
dc.identifier.issn2643-1564-
dc.identifier.urihttps://pr.ibs.re.kr/handle/8788114/12087-
dc.description.abstract© 2021 Published by the American Physical Society. The transition metal dichalcogenide is an ideal correlated system for studying the interplay between superconductivity (SC) and a charge density wave (CDW) because both symmetry-breaking phases can be easily controlled by either Cu intercalation or physical pressure. SC appears in proximity to a CDW quantum critical point (QCP) induced by both Cu intercalation and applied pressure, raising the possibility of CDW-driven SC. Here, we report tuning the CDW QCP by simultaneously controlling Cu intercalation and external pressure and the appearance of a SC dome centered on the tunable QCP. When subjected to pressure, CDW ordering of Cu-intercalated is completely suppressed at 2.3 GPa, where the residual resistivity and the resistivity-temperature exponent decrease sharply, indicating the presence of the CDW QCP. The upper critical field of is 3.51 kOe, 16 times larger than that of pristine , and its temperature dependence is linear, indicating that SC of is switched from the two-dimensional- to anisotropic three-dimensional-like by Cu intercalation. These discoveries show that the simultaneous application of Cu intercalation and pressure move the CDW QCP and that the highest SC transition temperature is pinned to the QCP, suggesting that the SC in is strongly correlated with CDW quantum criticality.-
dc.language영어-
dc.publisherAmerican Physical Society-
dc.titleTuning the charge density wave quantum critical point and the appearance of superconductivity in TiSe2-
dc.typeArticle-
dc.type.rimsART-
dc.identifier.scopusid2-s2.0-85113858213-
dc.identifier.rimsid78038-
dc.contributor.affiliatedAuthorSangyun Lee-
dc.contributor.affiliatedAuthorDuk Young Kim-
dc.identifier.doi10.1103/PhysRevResearch.3.033097-
dc.identifier.bibliographicCitationPhysical Review Research, v.3, no.3-
dc.relation.isPartOfPhysical Review Research-
dc.citation.titlePhysical Review Research-
dc.citation.volume3-
dc.citation.number3-
dc.description.journalClass1-
dc.description.journalClass1-
dc.description.isOpenAccessN-
dc.description.journalRegisteredClassscopus-
Appears in Collections:
Center for Integrated Nanostructure Physics(나노구조물리 연구단) > 1. Journal Papers (저널논문)
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