The direct Cu NQR study of the stripe phase in the lanthanum cuprates

The direct Cu NQR study of the stripe phase in the lanthanum cuprates

Using Cu NQR in Eu-doped La 2−xSr xCuO 4 we find the evidence of the pinned stripe phase at 1.3K for 0.08≤x≤0.18. The pinned fraction increases by one order of magnitude near hole doping x=1/8. The NQR lineshape reveals three inequivalent Cu positions. A dramatic change of the NQR signal for x>0....

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Veröffentlicht in:Physica. C, Superconductivity Superconductivity, 2000, Vol.341, p.1755-1758
Hauptverfasser: Teitel'baum, G.B., Büchner, B., de Gronckel, H.
Format: Artikel
Sprache:eng
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Zusammenfassung:Using Cu NQR in Eu-doped La 2−xSr xCuO 4 we find the evidence of the pinned stripe phase at 1.3K for 0.08≤x≤0.18. The pinned fraction increases by one order of magnitude near hole doping x=1/8. The NQR lineshape reveals three inequivalent Cu positions. A dramatic change of the NQR signal for x>0.18 correlating with the onset of bulk superconductivity corresponds to the depinning of the stripe phase.
ISSN:0921-4534
1873-2143
DOI:10.1016/S0921-4534(00)00994-1