Site-Dilution in quasi one-dimensional antiferromagnet Sr2(Cu1-xPdx)O3: reduction of Neel Temperature and spatial distribution of ordered moment sizes

Abstract

We investigate the Neel temperature of Sr2CuO3 as a function of the site dilution at the Cu (S=1/2) sites with Pd (S=0), utilizing the muon spin relaxation (muSR) technique. The Neel temperature, which is Tn=5.4K for the undoped system, becomes significantly reduced for less than one percent of doping Pd, giving a support for the previous proposal for the good one-dimensionality. The Pd concentration dependence of the Neel temperature is compared with a recent theoretical study (S. Eggert, I. Affleck and M.D.P. Horton, Phys. Rev. Lett. 89, 47202 (2002)) of weakly coupled one-dimensional antiferromagnetic chains of S=1/2 spins, and a quantitative agreement is found. The inhomogeneity of the ordered moment sizes is characterized by the muSR time spectra. We propose a model that the ordered moment size recovers away from the dopant S=0 sites with a recovery length of ξ= 150-200 sites. The origin of the finite recovery length ξfor the gapless S=1/2 antiferromagnetic chain is compared to the estimate based on the effective staggered magnetic field from the neighboring chains.

arXiv comment10 pages, 9 figures, submitted to PRB

References in corpus (11)

• Dynamics of coupled quantum spin chains
• On the Field-Induced Gap in Cu Benzoate and Other S=1/2 Antiferromagnets
• Direct Observation of Field-Induced Incommensurate Fluctuations in a One-Dimensional S=1/2 Antiferromagnet
• Reduction of ordered moment and Neel temperature of quasi one-dimensional antiferromagnets Sr2CuO3 and Ca2CuO3
• Quantum Impurities in the Two-Dimensional Spin One-Half Heisenberg Antiferromagnet
• ESR investigation on the Breather mode and the Spinon-Breather dynamical crossover in Cu Benzoate
• Continuum in the spin excitation spectrum of a Haldane chain, observed by neutron scattering in CsNiCl3
• Neel order in doped quasi one-dimensional antiferromagnets
• An Accurate Determination of the Exchange Constant in Sr_2CuO_3 from Recent Theoretical Results
• Magnetization steps in a diluted Heisenberg antiferromagnetic chain: Theory and experiments on TMMC:Cd
• Magnetic order and moment distribution in doped spin-chain systems

Cited by in corpus (28)

• Defects in correlated metals and superconductors
• Li diffusion in Li${}_x$CoO${}_2$ probed by muon-spin spectroscopy
• Purification and many-body localization in cold atomic gases
• Chain breaks and the susceptibility of Sr_2Cu_{1-x}Pd_xO_{3+δ} and other doped quasi one-dimensional antiferromagnets
• Evidence for Ballistic Thermal Conduction in the One-Dimensional S=1/2 Heisenberg Antiferromagnetic Spin System Sr2CuO3
• Spin pseudogap in Ni-doped SrCuO2
• Rigorous Solution of the Spin-1 Quantum Ising Model with Single-ion Anisotropy
• Thermodynamics of impurities in the anisotropic Heisenberg spin-1/2 chain
• Cross-dimensional phase transition from an array of 1D Luttinger liquids to a 3D Bose-Einstein condensate
• Organic Molecular Dynamics and Charge-carrier Lifetime in Lead Iodide Perovskite MAPbI${}_3$
• Possibility of direct observation of edge Majorana modes in quantum chains
• Electronic structure of interstitial hydrogen in In-Ga-Zn-O semiconductor simulated by muon
• Evidence for ordered magnetic moments at oxygen sites in antiferromagnetic Sr${}_2$IrO${}_4$ and Sr${}_3$Ir${}_2$O${}_7$
• Spin Gap in the Single Spin-1/2 Chain Cuprate Sr${}_{1.9}$Ca${}_{0.1}$CuO${}_3$
• Quantum magnetisms in uniform triangular lattices Li2AMo3O8 (A = In, Sc)
• Photo-excited charge carrier lifetime enhanced by slow cation molecular dynamics in lead iodide perovskite FAPbI${}_3$
• Spin pseudogap in the $S=\frac{1}{2}$ chain material Sr${}_2$CuO${}_3$ with impurities
• The effect of different in-chain impurities on the magnetic properties of the spin chain compound SrCuO${}_2$ probed by NMR
• Magnetic moment of rare earth elements in R2Fe14B estimated with μ^+SR
• Magnetic ordering in the ultra-pure site-diluted spin chain materials SrCu${}_{1-x}$Ni${}_x$O${}_2$
• Computation of ESR spectra from the time evolution of the magnetization: comparison of autocorrelation and Wiener-Khinchin-relation based methods
• Numerical study on ESR by making use of Wiener-Khinchin relation in time domain
• Electronic charge transfer driven by spin cycloidal structure
• Nano-scale dynamics of hydrogen in VO${}_2$ studied by $\mu$SR
• Local electronic structure of dilute hydrogen in $\beta$-MnO${}_2$
• Local spin dynamics in geometrically frustrated Mo pyrochlore antiferromagnet Lu${}_2$Mo${}_2$O${}_{5-y}$N${}_2$
• Local electronic structure of interstitial hydrogen in MgH${}_2$ inferred from muon study
• Spin-$S$ impurities with XXZ anisotropy in a spin-1/2 Heisenberg chain