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Static charge-density-wave order in the superconducting state of La2−xBaxCuO4

Thampy, V; Chen, XM; Cao, Y; Mazzoli, C; Barbour, AM; Hu, W; Miao, H; ... Dean, MPM; + view all (2017) Static charge-density-wave order in the superconducting state of La2−xBaxCuO4. [Rapid communication]. Physical Review B , 95 (24) , Article 241111(R). 10.1103/PhysRevB.95.241111. Green open access

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Abstract

Charge-density-wave (CDW) correlations feature prominently in the phase diagram of the cuprates, motivating competing theories of whether fluctuating CDW correlations aid superconductivity or whether static CDW order coexists with superconductivity in inhomogeneous or spatially modulated states. Here we report Cu L-edge resonant x-ray photon correlation spectroscopy measurements of CDW correlations in superconducting La2−xBaxCuO4, x = 0.11. Static CDW order is shown to exist in the superconducting state at low temperatures and to persist up to at least 85% of the CDW transition temperature. We discuss the implications of our observations for how nominally competing order parameters can coexist in the cuprates.

Type: Article
Title: Static charge-density-wave order in the superconducting state of La2−xBaxCuO4
Open access status: An open access version is available from UCL Discovery
DOI: 10.1103/PhysRevB.95.241111
Publisher version: http://doi.org/10.1103/PhysRevB.95.241111
Language: English
Additional information: ©2017 American Physical Society. This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions.
UCL classification: UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > London Centre for Nanotechnology
URI: http://discovery.ucl.ac.uk/id/eprint/1561636
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