Antiferromagnetic ordering and disappearance of pseudogap within the vortex core of Tl_2Ba_2CuO_{6+δ}

dc.creator	Kakuyanagi, K.
dc.creator	Kumagai, K.
dc.creator	Matsuda, Y.
dc.creator	Hasegawa, M.
dc.date	2002-06-19
dc.date.accessioned	2026-07-07T02:45:54Z
dc.date.available	2026-07-07T02:45:54Z
dc.description	Spatially-resolved NMR is used to probe the magnetism in and around the vortex core of nearly optimally-doped Tl_2Ba_2CuO_{6+δ} (T_c=85K). The NMR relaxation rate T_1^{-1} at ^{205}Tl site, at which antiferromagnetic (AF) fluctuation can be monitored sensitively, provides a direct evidence that the AF spin correlation is significantly enhanced in the vortex core region. In the core region Cu spins show a local AF ordering with moment ~ 0.1μ_B parallel to the layers at T_N=20K. Above T_N the core region is in the paramagnetic state which is a reminiscence of the state above the pseudogap temperature (T*=120K), indicating that the pseudogap disappears within the core.
dc.description	5pages, 4 figures
dc.identifier	https://arxiv.org/abs/cond-mat/0206362
dc.identifier	http://arxiv.org/abs/cond-mat/0206362
dc.identifier.uri	http://salesiana.dossiersoluciones.com/handle/123456789/19473
dc.subject	Superconductivity
dc.subject	Strongly Correlated Electrons
dc.title	Antiferromagnetic ordering and disappearance of pseudogap within the vortex core of Tl_2Ba_2CuO_{6+δ}
dc.type	text

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