Bose-Glass Phases in Disordered Quantum Magnets

Abstract

In disordered spin systems with antiferromagnetic Heisenberg exchange, transitions into and out of a magnetic-field-induced ordered phase pass through a unique regime. Using quantum Monte Carlo simulations to study the zero-temperature behavior, these intermediate regions are determined to be a Bose-Glass phase. The localization of field-induced triplons causes a finite compressibility and hence glassiness in the disordered phase.

4 pages, 4 figures

References in corpus (14)

• Quantum Monte Carlo with Directed Loops
• Stochastic series expansion method with operator-loop update
• Coupled Ladders in a Magnetic Field
• Generalized Directed Loop Method for Quantum Monte Carlo Simulations
• Propagation of Bose-Einstein condensates in a magnetic waveguide
• Bose-Einstein condensates near a microfabricated surface
• Surface Effects in Magnetic Microtraps
• Disordered Bose-Einstein Condensates in Quasi One-Dimensional Magnetic Microtraps
• Field-Induced Magnetic Order in Quantum Spin Liquids
• Universal scaling at field-induced magnetic phase transitions
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• Random Bond Effect in the Quantum Spin System (Tl${}_{1-x}$K${}_x$)CuCl${}_3$
• Consequences of spin-orbit coupling for the Bose-Einstein condensation of magnons
• Quantum Phase Transitions in Coupled Dimer Compounds

Cited by in corpus (30)

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• Evidence of a magnetic Bose glass in IPA-Cu(Cl0.95Br0.05)3 from neutron diffraction
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• Quantum critical scaling at a Bose-glass/superfluid transition: theory and experiment on a model quantum magnet
• Field-induced quantum disordered phases in S=1/2 weakly-coupled dimer systems with site dilution
• Dimensional crossover in a spin liquid to helimagnet quantum phase transition
• Many-body localization as a large family of localized ground states
• Disorder instability of the magnon condensate in a frustrated spin ladder
• Equilibrium phases of two-dimensional bosons in quasi-periodic lattices
• Electron spin resonance study of anisotropic interactions in a two-dimensional spin gap magnet PHCC
• Nuclear Magnetic Resonance Reveals Disordered Level-Crossing Physics in the Bose-Glass Regime of the Br-doped Ni(Cl${}_{1-x}$Br${}_x$)${}_2$-4SC(NH${}_2$)${}_2$ Compound at a High Magnetic Field
• Quantum magnetism in molecular spin ladders probed with muon-spin spectroscopy
• Disorder-induced Revival of the Bose-Einstein Condensation in Ni(Cl${}_{1-x}$Br${}_x$)${}_2$-4SC(NH${}_2$)${}_2$ at High Magnetic Fields
• Magnetic Bose glass phases of coupled antiferromagnetic dimers with site dilution
• Randomness and Frustration in a S = 1/2 Square-Lattice Heisenberg Antiferromagnet
• Bose-Einstein condensation vs. localization of bosonic quasiparticles in disordered weakly-coupled dimer antiferromagnets
• Sliding phase in randomly stacked 2D superfluids/superconductors
• Reentrant Random Quantum Ising Antiferromagnet
• Competing Bose-Glass physics with disorder-induced Bose-Einstein condensation in the doped $S=1$ antiferromagnet Ni(Cl${}_{1-x}$Br${}_x$)${}_2$-4SC(NH${}_2$)${}_2$ at high magnetic fields
• Field-induced spin level crossings within a quasi-XY antiferromagnetic state in Ba${}_2$FeSi${}_2$O${}_7$
• Dirty bosons on the Cayley tree: Bose-Einstein condensation versus ergodicity breaking
• The effect of randomness on the quantum spin system Tl${}_{1-x}$K${}_x$CuCl${}_3$ with ${\boldmath $x$}$ = 0.44 studied by the Zero-field Muon-Spin-Relaxation (ZF-$\mu$SR) method
• The effects of disorder in dimerized quantum magnets in mean field approximations
• Bond Disorder in Even-Leg Heisenberg Ladders
• Field Induced Multiple Reentrant Quantum Phase Transitions in Randomly Dimerized Antiferromagnetic S=1/2 Heisenberg Chains
• Formation of gapless triplets in the bond-doped spin-gap antiferromagnet (C${}_4$H${}_{12}$N${}_2$)(Cu${}_2$Cl${}_6$)
• Magnetic resonance of collective paramagnets with gapped excitations spectrum
• Formation of the S=1 paramagnetic centers in the bond-diluted spin-gap magnet
• Numerical study of the temperature dependence of the NMR relaxation rate across the superfluid-Bose glass transition in one dimension