Spin dynamics and ordering of a cuprate stripe-antiferromagnet

Abstract

In La1.48Nd0.4Sr0.12CuO4 the 139La and 63Cu NQR relaxation rates and signal wipe-out upon lowering temperature are shown to be due to purely magnetic fluctuations. They follow the same renormalized classical behavior as seen in neutron data, when the electronic spins order in stripes, with a small spread in spin stiffness (15% spread in activation energy). The La signal, which reappears at low temperatures, is magnetically broadened and experiences additional wipe-out due to slowing down of the Nd fluctuations.

4 pages including 3 figures - ref. 16 added

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Cited by in corpus (21)

• How to detect fluctuating order in the high-temperature superconductors
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• Glassy Slowing of Stripe Modulation in (La,Eu,Nd)(2-x)(Sr,Ba)(x)CuO4: A Cu-63 and La-139 NQR Study Down to 350mK
• Glassy Spin Freezing and NMR Wipeout Effect in the High-T_c Superconductor La1.90Sr0.10CuO4: What is the Relationship With Stripes ?
• Similar glassy features in the NMR response of pure and disordered La1.88Sr0.12CuO4
• Doping dependence of spin excitations in the stripe phase of high-Tc superconductors
• Magnetic field-enhanced spin freezing in YBa2Cu3O6.45 at the verge of the competition between superconductivity and charge order
• NMR Evidence for Charge Inhomogeneity in Stripe Ordered La_{1.8-x}Eu_{0.2}Sr_{x}CuO_4
• Developments in the negative-U modelling of the cuprate HTSC systems
• The two-component physics in cuprates in the real space and in the momentum representation
• Charge order and low frequency spin dynamics in lanthanum cuprates revealed by Nuclear Magnetic Resonance
• First time determination of the microscopic structure of a stripe phase: Low temperature NMR in La2NiO4.17
• Competition between spin ordering and superconductivity near the pseudogap boundary in La2-xSrxCuO4: insights from NMR
• Magnetic field induced anisotropy of ${}^{139}\mathrm{La}$ spin-lattice relaxation rates in stripe ordered ${\mathrm{La}}_{1.875}{\mathrm{Ba}}_{0.125}{\mathrm{CuO}}_4$
• High magnetic field ultrasound study of spin freezing in La${}_{1.88}$Sr${}_{0.12}$CuO${}_4$
• Pseudogap behavior of nuclear spin relaxation in high Tc superconductors in terms of phase separation
• Persistence of slow fluctuations in the overdoped regime of Ba(Fe1-xRhx)2As2 superconductors
• Cluster Spin Glass Distribution Functions in La${}_{2-x}$Sr${}_x$CuO${}_4$
• Ultraslow fluctuations in the pseudogap states of HgBa${}_2$CaCu${}_2$O${}_{6+d}$
• Interpretation of low-temperature nuclear quadrupole resonance spectra in La(1.875)Ba(0.125)CuO(4) in terms of two-dimensional spin superstructure
• Interplay between the magnetic fluctuations and superconductivity in the lanthanum cuprates