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Unconventional quantum vortex matter state hosts quantum oscillations in the underdoped high-temperature cuprate superconductors

Hsu, Yu-Te; Hartstein, Máté; Davies, Alexander J.; Hickey, Alexander J.; Chan, Mun K.; Porras, Juan; Loew, Toshinao; Taylor, Sofia V.; Liu, Hsu; Eaton, Alexander G.; Le Tacon, Matthieu; Zuo, Huakun; Wang, Jinhua; Zhu, Zengwei; Lonzarich, Gilbert G.; Keimer, Bernhard; Harrison, Neil; Sebastian, Suchitra E.

Abstract (englisch):
A central question in the underdoped cuprates pertains to thenature of the pseudogap ground state. A conventional metallicground state of the pseudogap region has been argued to hostquantum oscillations upon destruction of the superconductingorder parameter by modest magnetic fields. Here, we use lowapplied measurement currents and millikelvin temperatures onultrapure single crystals of underdoped YBa2Cu3O6+xto unearthan unconventional quantum vortex matter ground state char-acterized by vanishing electrical resistivity, magnetic hysteresis,and nonohmic electrical transport characteristics beyond the high-est laboratory-accessible static fields. A model of the pseudogapground state is now required to explain quantum oscillationsthat are hosted by the bulk quantum vortex matter state with-out experiencing sizable additional damping in the presence of alarge maximum superconducting gap; possibilities include a pairdensity wave



Originalveröffentlichung
DOI: 10.1073/pnas.2021216118
Dimensions
Zitationen: 2
Zugehörige Institution(en) am KIT Institut für Quantenmaterialien und -technologien (IQMT)
Publikationstyp Zeitschriftenaufsatz
Publikationsmonat/-jahr 02.2021
Sprache Englisch
Identifikator ISSN: 0027-8424, 1091-6490
KITopen-ID: 1000129523
HGF-Programm 43.21.01 (POF IV, LK 01) Quantum Correlations in Condensed Matter
Erschienen in Proceedings of the National Academy of Sciences of the United States of America
Verlag National Academy of Sciences
Band 118
Heft 7
Seiten e2021216118
Vorab online veröffentlicht am 09.02.2021
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