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arXiv 1402.3077cond-mat.supr-con
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1/8掺杂铜酸镧中电荷条纹有序引起的自旋涨落的非均匀慢化

Inhomogeneous slowing down of spin fluctuations induced by charge stripe order in 1/8-doped lanthanum cuprates

S. -H. Baek, M. Hücker, A. Erb, G. D. Gu, B. Büchner, H. -J. Grafe

摘要:

我们报告$^{139}$ La核磁共振(NMR)测量的La $_{2-x}$ Sr $_x$ CuO $_4$($0.07\leq x \leq 0.15$)和La $_{2-x}$ Ba $_x$ CuO $_4$($x=1/8$)单晶,专注于自旋冻结观察到的1/8掺杂铜酸镧。电荷条纹有序似乎诱导自旋涨落向自旋有序方向的非均匀减慢,并与超导性竞争。

英文摘要:

We report $^{139}$La nuclear magnetic resonance (NMR) measurements on La$_{2-x}$Sr$_x$CuO$_4$ ($0.07\leq x \leq 0.15$) and La$_{2-x}$Ba$_x$CuO$_4$ ($x=1/8$) 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.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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