Magnetic-field Induced Interconversion of Cooper Pairs and Density Wave States within Cuprate Composite Order

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Magnetic-field Induced Interconversion of Cooper Pairs and Density Wave States within Cuprate Composite Order

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Title: Magnetic-field Induced Interconversion of Cooper Pairs and Density Wave States within Cuprate Composite Order
Author: Hamidian, M.H.; Sachdev, Subir; Edkins, S.D.; Fujita, K.; Kostin, A.; Mackenzie, A.P.; Eisaki, H.; Uchida, S.; Lawler, M.J.; Kim, E.A.; David, J.C.

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Citation: Hamidian, M. H., S. D. Edkins, K. Fujita, A. Kostin, A. P. Mackenzie, H. Eisaki, S. Uchida, M. J. Lawler, E.-A. Kim, S. Sachdev, and J. C. Davis. 2016. Magnetic-field Induced Interconversion of Cooper Pairs and Density Wave States within Cuprate Composite Order. Working paper.
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Abstract: Recent studies establish that the cup rate pseudogap phase is susceptible at low temperatures to forming not only a d-symmetry superconducting (SC) state, but also a d-symmetry form factor (dFF) density wave (DW) state. The concurrent emergence of such distinct and unusual states from the pseudogap motivates theories that they are “intertwined” i.e. derived from a quantum composite of dissimilar broken-symmetry orders. Some composite order theories predict that the balance between the different components can be altered, for example at superconducting vortex cores. Here, we introduce sublattice phase-resolved electronic structure imaging as a function of magnetic field and find robust dFF DWstates induced at each vortex. They are predominantly unidirectional and co-oriented (nematic), exhibiting strong spatial-phase coherence. At each vortex, we also detect the field-induced conversion of the SC to DW components, and demonstrate that this occurs at precisely the eight momentum-space locations predicted in many composite order theories. These data provide direct microscopicevidence for the existence of composite order in the cuprates, and new indications of how the DW state becomes long-range ordered in high magnetic fields.
Other Sources: http://arxiv.org/abs/1508.00620
Terms of Use: This article is made available under the terms and conditions applicable to Other Posted Material, as set forth at http://nrs.harvard.edu/urn-3:HUL.InstRepos:dash.current.terms-of-use#LAA
Citable link to this page: http://nrs.harvard.edu/urn-3:HUL.InstRepos:34331445
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