Magnetic ordering in the ultra-pure site-diluted spin chain materials SrCu${}_{1-x}$Ni${}_x$O${}_2$

Abstract

Muon spin rotation technique is used to study magnetic ordering in ultra-pure samples of SrCu${}_{1-x}$Ni${}_x$O${}_2$, an archetypical $S=1/2$ antiferromagnetic Heisenberg chain system with a small amount of $S=1$ defects. The ordered state in the parent compound is shown to be highly homogeneous, contrary to previous report [M. Matsuda et al., Phys. Rev. B \textbf{55}, R11953 (1997)]. Even minute amount of Ni impurities result in inhomogeneous order and a decrease of the transition temperature. At as little as $0.5$~\% Ni concentration, magnetic ordering is entirely suppressed. The results are compared to previous theoretical studies of weakly coupled spin chains with site-defects.

References in corpus (19)

• Thermodynamics of Spin S = 1/2 Antiferromagnetic Uniform and Alternating-Exchange Heisenberg Chains
• musrfit: A free platform-independent framework for muSR data analysis
• Susceptibility of the Spin 1/2 Heisenberg Antiferromagnetic Chain
• Spin-Vacancy-Induced Long-Range Order in a New Haldane-Gap Antiferromagnet
• Reduction of ordered moment and Neel temperature of quasi one-dimensional antiferromagnets Sr2CuO3 and Ca2CuO3
• Ballistic heat transport of quantum spin excitations as seen in SrCuO2
• Site-Dilution in quasi one-dimensional antiferromagnet Sr2(Cu1-xPdx)O3: reduction of Neel Temperature and spatial distribution of ordered moment sizes
• Anisotropic spin freezing in the S=1/2 zigzag ladder compound SrCuO2
• Dynamics and Transport in Random Antiferromagnetic Spin Chains
• Neel order in doped quasi one-dimensional antiferromagnets
• Boundary susceptibility in the spin-1/2 chain: Curie like behavior without magnetic impurities
• Spin pseudogap in Ni-doped SrCuO2
• Spinon heat transport and spin-phonon interaction in the antiferromagnetic spin-1/2 Heisenberg chain cuprates Sr2CuO3 and SrCuO2
• Thermodynamics of impurities in the anisotropic Heisenberg spin-1/2 chain
• Bond disorder and breakdown of ballistic heat transport in the spin-1/2 antiferromagnetic Heisenberg chain as seen in Ca-doped SrCuO2
• Finite-size effects in the quasi-one-dimensional quantum magnets Sr${}_2$CuO${}_3$, Sr${}_2$Cu${}_{0.99}$M${}_{0.01}$O${}_3$ (M = Ni, Zn), and SrCuO${}_2$
• Bond disorder and spinon heat transport in the $S=\frac{1}{2}$ Heisenberg spin chain compound Sr${}_2$CuO${}_3$: from clean to dirty limits
• Doping effects in low dimensional antiferromagnets
• Magnetic order and moment distribution in doped spin-chain systems

Cited by in corpus (6)

• Chemical- and hydrostatic-pressure effects on the Kitaev honeycomb material Na${}_2$IrO${}_3$
• Impurities in weakly coupled quantum spin chains Sr${}_2$CuO${}_3$ and SrCuO${}_2$
• Spin pseudogap in the $S=\frac{1}{2}$ chain material Sr${}_2$CuO${}_3$ with impurities
• The dynamic structure factor in impurity-doped spin chains
• Effects of quantum impurity spins on the magnetic properties of zigzag and linear spin chains
• LT-scaling in depleted quantum spin ladders