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Spin Dynamics in the LTT Phase of ~1/8 Doped Single Crystal La_{1.67}Eu_{0.2}Sr_{0.13}CuO_4

B. J. Suh·P. C. Hammel·M. Hücker·B. Büchner·U. Ammerahl·A. Revcolevschi
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Abstract

We present La and Cu NMR relaxation measurements in single crystal La_{1.67}Eu_{0.2}Sr_{0.13}CuO_4. A strong peak in the La spin-lattice relaxation rate observed in the spin ordered state is well-described by the BPP mechanism[1] and arises from continuous slowing of electronic spin fluctuations with decreasing temperature; these spin fluctuations exhibit XY-like anisotropy in the ordered state. The spin pseudogap is enhanced by the static charge-stripe order in the LTT phase.

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B. J. Suh, P. C. Hammel, M. Hücker, B. Büchner, U. Ammerahl, A. Revcolevschi. 2000-01-25. Spin Dynamics in the LTT Phase of ~1/8 Doped Single Crystal La_{1.67}Eu_{0.2}Sr_{0.13}CuO_4. https://doi.org/10.1103/physrevb.61.r9265

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