Emergence of charge order from the vortex state of a high-temperature superconductor

Evidence is mounting that charge order competes with superconductivity in high T c cuprates. Whether this has any relationship to the pairing mechanism is unknown as neither the universality of the competition nor its microscopic nature has been established. Here, we show using nuclear magnetic reso...

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Published inNature communications Vol. 4; no. 1; p. 2113
Main Authors Wu, Tao, Mayaffre, Hadrien, Krämer, Steffen, Horvatić, Mladen, Berthier, Claude, Kuhns, Philip L., Reyes, Arneil P., Liang, Ruixing, Hardy, W. N., Bonn, D. A., Julien, Marc-Henri
Format Journal Article
LanguageEnglish
Published London Nature Publishing Group UK 03.07.2013
Nature Publishing Group
Subjects
639/766/119/1003
Competition
Humanities and Social Sciences
multidisciplinary
NMR
Nuclear magnetic resonance
Phase transitions
Science
Science (multidisciplinary)
Ultrasonic imaging
Vortices
Florida
Canada
United States > US
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Summary:Evidence is mounting that charge order competes with superconductivity in high T c cuprates. Whether this has any relationship to the pairing mechanism is unknown as neither the universality of the competition nor its microscopic nature has been established. Here, we show using nuclear magnetic resonance that charge order in YBa 2 Cu 3 O y has maximum strength inside the superconducting dome, similar to compounds of the La 2− x (Sr,Ba) x CuO 4 family. In YBa 2 Cu 3 O y , this occurs at doping levels of p =0.11–0.12. We further show that the overlap of halos of incipient charge order around vortex cores, similar to those visualised in Bi 2 Sr 2 CaCu 2 O 8+ δ , can explain the threshold magnetic field at which long-range charge order emerges. These results reveal universal features of a competition in which charge order and superconductivity appear as joint instabilities of the same normal state, whose relative balance can be field-tuned in the vortex state. The recent discovery of charge order in YBa 2 Cu 3 O y was unexpected. A systematic study of the evolution of this phenomenon as a function of magnetic field conducted by Wu et al . reveals how the competition between charge order and superconductivity may actually be universal to the underdoped cuprates.
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ISSN:2041-1723
2041-1723
DOI:10.1038/ncomms3113