Inhomogeneous slowing down of spin fluctuations induced by charge stripe order in 1/8-doped lanthanum cuprates
Abstract
We report 139La nuclear magnetic resonance (NMR) measurements on La2-xSrxCuO4 (0.07≤ x ≤ 0.15) and La2-xBaxCuO4 (x=1/8) single crystals, focusing on the spin freezing observed in 1/8-doped lanthanum cuprates. Charge stripe order seems to induce the inhomogeneous slowing down of spin fluctuations toward spin order and compete with superconductivity.
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