Spin dynamics in the low-temperature tetragonal phase of≅18doped single crystalLa1.67Eu0.2Sr0.13CuO4

1999/11/30 by B. J. Suh, P. C. Hammel, M. Hücker +3 · 4 citations
Materials Science · Physics and Astronomy · #Magnetic and transport properties of perovskites and related materials #Physics of Superconductivity and Magnetism #Rare-earth and actinide compounds #cond-mat.str-el

paper · pdf · doi:10.1103/physrevb.61.r9265

published as Phys. Rev. B, vol. 61, p. R9265 (2000). · Four pages, three figures

arxiv created 2000/01/25 · openalex publication_date 2000/04/01 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28

Abstract

We present ¹³⁹La and ⁶³Cu NMR relaxation measurements in single crystal La_1.67Eu_0.2Sr_0.13CuO₄. A strong peak in the ¹³⁹La spin-lattice relaxation rate observed in the spin ordered state is well described by the BPP mechanism [Bloembergen, Purcell, and Pound, Phys. Rev. 73, 679 (1948)] 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 significantly enhanced by the static charge-stripe order in the LTT phase.

Citations

• Dynamical stripe correlations and the spin fluctuations in cuprate superconductors
• Magnetism of Stripe-OrderedLa5/3Sr1/3NiO4
• Suppression of Antiferromagnetic Order by Light Hole Doping inLa2Cu1−xLixO4: AL<mml:mprescripts/>139aNQR Study

Cited by

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