Thermal control of spin excitations in the coupled Ising-chain material RbCoCl3

Abstract

We have used neutron spectroscopy to investigate the spin dynamics of the quantum (S = 1/2) antiferromagnetic Ising chains in RbCoCl3. The structure and magnetic interactions in this material conspire to produce two magnetic phase transitions at low temperatures, presenting an ideal opportunity for thermal control of the chain environment. The high-resolution spectra we measure of two-domain-wall excitations therefore characterize precisely both the continuum response of isolated chains and the "Zeeman-ladder" bound states of chains in three different effective staggered fields in one and the same material. We apply an extended Matsubara formalism to obtain a quantitative description of the entire dataset, Monte Carlo simulations to interpret the magnetic order, and finite-temperature DMRG calculations to fit the spectral features of all three phases.

arXiv comment6 pages, 4 figures. Supplemental material included

References in corpus (24)

• The density-matrix renormalization group in the age of matrix product states
• Matrix Product Density Operators: Simulation of finite-T and dissipative systems
• Unifying time evolution and optimization with matrix product states
• Quantum criticality in an Ising chain: experimental evidence for emergent E8 symmetry
• HORACE: software for the analysis of data from single crystal spectroscopy experiments at time-of-flight neutron instruments
• Spectral functions in one-dimensional quantum systems at T>0
• Generic Construction of Efficient Matrix Product Operators
• Experimental Observation of Bethe Strings
• Quantum Phase Transition of a Magnet in a Spin Bath
• Topological quantum phase transition in the Ising-like antiferromagnetic spin chain BaCo${}_2$V${}_2$O${}_8$
• A hierarchy of bound states in the 1D ferromagnetic Ising chain CoNb${}_2$O${}_6$ investigated by high resolution time-domain terahertz spectroscopy
• Spinon confinement in a quasi one dimensional anisotropic Heisenberg magnet
• Longitudinal and Transverse Zeeman Ladders in the Ising-Like Chain Antiferromagnet BaCo2V2O8
• Precise evaluation of thermal response functions by optimized density matrix renormalization group schemes
• Spinon Confinement in the One-Dimensional Ising-Like Antiferromagnet SrCo2V2O8
• Magnetic correlations of the quasi-one-dimensional half-integer spin-chain antiferromagnets Sr$M_2$V${}_2$O${}_8$ ($M$ = Co, Mn)
• Excitations in the quantum paramagnetic phase of the quasi-one-dimensional Ising magnet CoNb${}_2$O${}_6$ in a transverse field: Geometric frustration and quantum renormalization effects
• From confined spinons to emergent fermions: Observation of elementary magnetic excitations in a transverse-field Ising chain
• Ordered Phases and Phase Transitions in The Stacked Triangular Ising Antiferromagnet CsCoCl${}_3$ and CsCoBr${}_3$
• "Quasi-particle breakdown" in the quasi-one-dimensional Ising ferromagnet CoNb${}_2$O${}_6$
• Finite Temperature Dynamical Structure Factor of the Heisenberg-Ising Chain
• A cluster heat bath method on a quasi-onedimensional Ising model
• Cluster Heat Bath Algorithm in Monte Carlo Simulations of Ising Models
• Magnetic Excitations in the Quasi-1D Ising-like Antiferromagnet TlCoCl${}_3$

Cited by in corpus (11)

• Generating Function for Tensor Network Diagrammatic Summation
• Emergence of spinons in layered trimer iridate Ba4Ir3O10
• Magnetic order in the quasi-one-dimensional Ising system RbCoCl${}_3$
• Ising chain: Thermal conductivity and first-principle validation of Fourier law
• Confinement of fractional excitations in a triangular lattice antiferromagnet
• Spinon continuum in the Heisenberg quantum chain compound Sr${}_2$V${}_3$O${}_9$
• Na${}_5$Co${}_{15.5}$Te${}_6$O${}_{36}$: an $S$ = 1/2 stacked Ising kagome antiferromagnet with a partially disordered ground state
• Inhomogeneous spin excitations in weakly coupled spin-1/2 chains
• Zero-field magnetic structure and metamagnetic phase transitions of the cobalt chain compound Li${}_2$CoCl${}_4$
• Fermionic quantum gas at finite temperature within a Lorentz violating background
• Applied-field magnetic structure and spectroscopy shifts of the effective spin-$\frac{1}{2}$, $XY$-like magnet Li${}_2$CoCl${}_4$