Magnetic resonance in the model high-temperature superconductor HgBa$_2$CuO$_{4+δ}$

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dc.creatorYu, G.
dc.creatorLi, Y.
dc.creatorMotoyama, E. M.
dc.creatorZhao, X.
dc.creatorBarisic, N.
dc.creatorCho, Y.
dc.creatorBourges, P.
dc.creatorHradil, K.
dc.creatorMole, R. A.
dc.creatorGreven, M.
dc.date2008-10-31
dc.date.accessioned2026-07-07T10:14:38Z
dc.date.available2026-07-07T10:14:38Z
dc.descriptionWe present an inelastic neutron scattering study of the structurally simple single-layer compound HgBa$_2$CuO$_{4+δ}$ close to optimal doping ($T_c \approx 96$ K). A well-defined antiferromagnetic resonance with energy $ω_r = 56$ meV ($\approx 6.8 k_BT_c$) is observed below the superconducting transition temperature $T_c$. The resonance mode is energy-resolution limited and exhibits an intrinsic momentum width of about $0.2 \mathrm{\mathring{A}^{-1}}$, consistent with prior work on several other cuprates. However, the unusually large value of the mode energy implies a non-universal relationship between $ω_r$ and $T_c$ across different families of cuprates.
dc.description4 pages, 4 figures
dc.identifierhttps://arxiv.org/abs/0810.5759
dc.identifierhttp://arxiv.org/abs/0810.5759
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/172947
dc.subjectSuperconductivity
dc.titleMagnetic resonance in the model high-temperature superconductor HgBa$_2$CuO$_{4+δ}$
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