Determination of The Spin Contributed Knight Shift in $Na_{0.35} Co O_2 \cdot 1.3 H_2 O$

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dc.creatorMichioka, C.
dc.creatorKato, M.
dc.creatorYoshimura, K.
dc.creatorTakada, K.
dc.creatorSakurai, H.
dc.creatorTakayama-Muromachi, E.
dc.creatorsasaki, T.
dc.date2004-03-11
dc.date.accessioned2026-07-07T02:56:54Z
dc.date.available2026-07-07T02:56:54Z
dc.descriptionThe spin contributed Knight shift $^{59}K_{s}$ of $^{59}\mathrm{Co}$ in the triangular lattice superconductor, $\mathrm{Na_{0.35}CoO_{2} \cdot 1.3H_{2}O}$, has been estimated by NMR experiments in an oriented 2-dimensional powder sample. The Knight shift in the paramagnetic state was estimated by $δν/(γ\mathrm{_{N}}H_{i})$ vs. $(γ\mathrm{_{N}}H_{i})^{-2}$ plot at various temperatures. A Knight shift vs. magnetic susceptibility diagram revealed that at least 0.3 % for $K_{x}$ and 0.1 % for $K_{y}$ are attributed to the spin contribution. Below $T\mathrm{_{c}}$, $δν/(γ\mathrm{_{N}}H_{i})$ vs. $(γ\mathrm{_{N}}H_{i})^{-2}$ plot does not give unique Knight shift because of the diamagnetic effect and/or the other ones. We concluded that the invariant behavior at about 7 T (between $H\mathrm{_{c1}}$ and $H\mathrm{_{c2}}$) below $T\mathrm{_{c}}$ possibly indicates the nature of the spin-triplet superconductivity.
dc.identifierhttps://arxiv.org/abs/cond-mat/0403293
dc.identifierhttp://arxiv.org/abs/cond-mat/0403293
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/23509
dc.subjectSuperconductivity
dc.subjectStrongly Correlated Electrons
dc.titleDetermination of The Spin Contributed Knight Shift in $Na_{0.35} Co O_2 \cdot 1.3 H_2 O$
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