Quantum phase transitions in alternating spin-(1/2, 5/2) Heisenberg chains

Abstract

The ground state spin-wave excitations and thermodynamic properties of two types of ferrimagnetic chains are investigated: the alternating spin-1/2 spin-5/2 chain and a similar chain with a spin-1/2 pendant attached to the spin-5/2 site. Results for magnetic susceptibility, magnetization and specific heat are obtained through the finite-temperature Lanczos method with the aim in describing available experimental data, as well as comparison with theoretical results from the semiclassical approximation and the low-temperature susceptibility expansion derived from Takahashi's modified spin-wave theory. In particular, we study in detail the temperature vs. magnetic field phase diagram of the spin-1/2 spin-5/2 chain, in which several low-temperature quantum phases are identified: the Luttinger Liquid phase, the ferrimagnetic plateau and the fully polarized one, and the respective quantum critical points and crossover lines.

References in corpus (34)

• Quantum phase transitions
• Magnetization plateaus in spin chains: ``Haldane gap'' for half-integer spins
• Quantum Criticality
• Critical Properties of gapped spin-1/2 chains and ladders in a magnetic field
• Low-Lying Excited States and Low-Temperature Properties of an Alternating Spin-1 / Spin-1/2 Chain : A DMRG study
• Finite Temperature Properties of Quantum Antiferromagnets in a Uniform Magnetic Field in One and Two Dimensions
• Thermodynamics of the Spin Luttinger-Liquid in a Model Ladder Material
• Large-Scale Numerical Evidence for Bose Condensation in the S=1 Antiferromagnetic Chain in a Strong Field
• Statics and dynamics of weakly coupled antiferromagnetic spin-1/2 ladders in a magnetic field
• Nature of the spin dynamics and 1/3 magnetization plateau in azurite
• Zero Temperature Phase Transition in Spin-ladders: Phase Diagram and Dynamical studies of Cu(Hp)Cl
• Magnetic properties of the $S=1/2$ distorted diamond chain at T=0
• Low Temperature Properties of Quantum Antiferromagnetic Chains with Alternating Spins S=1 and 1/2
• Thermodynamic Properties of Heisenberg Ferrimagnetic Spin Chains: Ferromagnetic-Antiferromagnetic Crossover
• Universal temperature dependence of the magnetization of gapped spin chains
• Magnetism and Thermodynamics of Spin-1/2 Heisenberg Diamond Chains in a Magnetic Field
• Critical Behaviour of Mixed Heisenberg Chains
• Intrinsic double-peak structure of the specific heat in low-dimensional quantum ferrimagnets
• Heat capacity uncovers physics of a frustrated spin tube
• Bosonic representation of one-dimensional Heisenberg ferrimagnets
• Universal emergence of the one-third plateau in the magnetization process of frustrated quantum spin chains
• Combination of Ferromagnetic and Antiferromagnetic Features in Heisenberg Ferrimagnets
• Thermodynamics of Spin-1/2 AF-AF-F and F-F-AF Trimerized Quantum Heisenberg Chains
• Spin Configuration in the 1/3 Magnetization Plateau of Azurite Determined by NMR
• Frustration-induced quantum phase transitions in a quasi-one-dimensional ferrimagnet: Hard-core boson map and the Ton ks-Girardeau limit
• Thermodynamics of spin-1/2 tetrameric Heisenberg antiferromagnetic chain
• Low-temperature thermodynamics of one-dimensional alternating-spin Heisenberg ferromagnets
• Magnetism and thermodynamics of spin-(1/2,1) decorated Heisenberg chain with spin-1 pendants
• Quasi-One-Dimensional Quantum Ferrimagnets
• Low-energy structure of the intertwining double-chain ferrimagnets A_3_Cu_3_(PO_4_)_4_ (A=Ca,Sr,Pb)
• Intrinsic avalanches and collective phenomena in a Mn(II)-free radical ferrimagnetic chain
• Subtle competition between ferromagnetic and antiferromagnetic order in a Mn(II) - free radical ferrimagnetic chain
• Frustrated spin ladder with alternating spin-1 and spin-1/2 rungs
• Quantum Rotors on the AB${}_2$ Chain with Competing Interactions

Cited by in corpus (12)

• Diversity of quantum ground states and quantum phase transitions of a spin-1/2 Heisenberg octahedral chain
• Topology of many-body edge and extended quantum states in an open spin chain: 1/3--plateau, Kosterlitz-Thouless transition, and Luttinger liquid
• Magnetic signatures of quantum critical points of the ferrimagnetic mixed spin-(1/2, S) Heisenberg chains at finite temperatures
• Breakdown of intermediate one-half magnetization plateau of spin-1/2 Ising-Heisenberg and Heisenberg branched chains at triple and Kosterlitz-Thouless critical points
• Breakdown of a Magnetization Plateau in Ferrimagnetic Mixed Spin-(1/2,S) Heisenberg Chains Due to a Quantum Phase Transition Towards the Luttinger Spin Liquid
• Magnetic field - temperature phase diagram of ferrimagnetic alternating chains: spin-wave theory from a fully polarized vacuum
• Ferromagnetic phases due to competing short- and long-range interactions in the spin-S Blume-Capel model
• The role of density-dependent magnon hopping and magnon-magnon repulsion in ferrimagnetic spin-(1/2, $S$) chains in a magnetic field
• Translational symmetry broken magnetization plateau of the S=1 antiferromagnetic Heisenberg chain with competing anisotropies
• Mixed-spin Heisenberg ladders in a magnetic field
• Translational-Symmetry-Broken Magnetization Plateaux of the $S=3/2$ Anisotropic Antiferromagnetic Chain
• Micromagnons and long-range entanglement in ferrimagnetic ground states