Evidence for antiferromagnetism coexisting with charge order in the trilayer cuprate HgBa$_2$Ca$_2$Cu$_3$O$_{8+ \delta}$

V. Oliviero; S. Benhabib; I. Gilmutdinov; B. Vignolle; L. Drigo; M. Massoudzadegan; M. Leroux; G. L. J. A. Rikken; A. Forget; D. Colson; D. Vignolles; C. Proust

doi:10.1038/s41467-022-29134-6

arXiv · 2111.03589

Evidence for antiferromagnetism coexisting with charge order in the trilayer cuprate HgBa$_2$Ca$_2$Cu$_3$O$_{8+ \delta}$

V. Oliviero·S. Benhabib·I. Gilmutdinov·B. Vignolle·L. Drigo·M. Massoudzadegan·M. Leroux·G. L. J. A. Rikken·A. Forget·D. Colson·D. Vignolles·C. Proust

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Abstract

Multilayered cuprates possess not only the highest superconducting temperature transition but also offer a unique platform to study disorder-free CuO$_2$ planes and the interplay between competing orders with superconductivity. Here, we study the underdoped trilayer cuprate HgBa$_2$Ca$_2$Cu$_3$O$_{8+ \delta}$ and we report the first quantum oscillation and Hall effect measurements in magnetic field up to 88 T. A careful analysis of the complex spectra of quantum oscillations strongly supports the coexistence of an antiferromagnetic order in the inner plane and a charge order in the outer planes. The presence of an ordered antiferromagnetic metallic state that extends deep in the superconducting phase is a key ingredient that supports magnetically mediated pairing interaction in cuprates.

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V. Oliviero, S. Benhabib, I. Gilmutdinov, B. Vignolle, L. Drigo, M. Massoudzadegan, M. Leroux, G. L. J. A. Rikken, A. Forget, D. Colson, D. Vignolles, C. Proust. 2021-11-05. Evidence for antiferromagnetism coexisting with charge order in the trilayer cuprate HgBa$_2$Ca$_2$Cu$_3$O$_{8+ \delta}$. https://doi.org/10.1038/s41467-022-29134-6

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