Emergent interacting spin islands in a depleted strong-leg Heisenberg ladder

Abstract

Properties of the depleted Heisenberg spin ladder material series (C${}_7$H${}_{10}$N)${}_2$Cu${}_{1-z}$Zn${}_z$Br${}_4$ have been studied by the combination of magnetic measurements and neutron spectroscopy. Disorder-induced degrees of freedom lead to a specific magnetic response, described in terms of emergent strongly interacting "spin island" objects. The structure and dynamics of the spin islands is studied by high-resolution inelastic neutron scattering. This allows to determine their spatial shape and to observe their mutual interactions, manifested by strong spectral in-gap contributions.

References in corpus (25)

• Complexity in Strongly Correlated Electronic Systems
• Quantum Monte Carlo with Directed Loops
• Bose-Einstein Condensation in Magnetic Insulators
• The ALPS project release 2.0: Open source software for strongly correlated systems
• Spin-Vacancy-Induced Long-Range Order in a New Haldane-Gap Antiferromagnet
• Matrix Product State applications for the ALPS project
• Spectral and thermodynamic properties of a strong-leg quantum spin ladder
• Spectrum of a magnetized strong-leg quantum spin ladder
• Y NMR imaging of the staggered magnetization in doped Haldane chain Y(2)BaNi(1-x)Mg(x)O(5)
• Holes in a Quantum Spin Liquid
• Supplementary material for "Impurity-induced magnetic order in low dimensional spin gapped materials"
• Attractive Tomonaga-Luttinger Liquid in a Quantum Spin Ladder
• Symmetric and asymmetric excitations of a strong-leg quantum spin ladder
• Structure of end states for a Haldane Spin Chain
• Rapid Suppression of the Spin Gap in Zn-doped CuGeO_3 and SrCu_2O_3
• Spin ladders with nonmagnetic impurities
• Scaling of temporal correlations in an attractive Tomonaga-Luttinger spin liquid
• Long-lived magnons throughout the Brillouin zone of the strong-leg spin ladder (C${}_7$H${}_{10}$N)${}_2$CuBr${}_4$
• ESR study of the spin ladder with uniform Dzyaloshinskii-Moria interaction
• ESR modes in a Strong-Leg Ladder in the Tomonaga-Luttinger Liquid Phase
• Crystals for neutron scattering studies of quantum magnetism
• Magnetic responses of randomly depleted spin ladders
• Magnetic Bose glass phases of coupled antiferromagnetic dimers with site dilution
• The disordered-free-moment phase: a low-field disordered state in spin-gap antiferromagnets with site dilution
• Correlations in Quantum Spin Ladders with Site and Bond Dilution

Cited by in corpus (8)

• Dynamic structure factor of disordered quantum spin ladders
• Orphan spins and bound in-gap states in the $S=\frac{5}{2}$ antiferromagnet CaFe${}_2$O${}_4$
• Disorder-induced Revival of the Bose-Einstein Condensation in Ni(Cl${}_{1-x}$Br${}_x$)${}_2$-4SC(NH${}_2$)${}_2$ at High Magnetic Fields
• LT-scaling in depleted quantum spin ladders
• Magnetic resonance of collective paramagnets with gapped excitations spectrum
• Electron spin resonance study of spin relaxation in the strong-leg spin ladder with nonmagnetic dilution
• Magnetic and phononic dynamics in the two-ladder quantum magnet (C5H9NH3)2CuBr4
• Gapless behavior in a two-leg spin ladder with bond randomness