Low-temperature thermodynamics of one-dimensional alternating-spin Heisenberg ferromagnets
arXiv:cond-mat/0512630 · doi:10.1103/PhysRevB.72.054423
Abstract
Motivated by a novel bimetallic chain compound in which alternating magnetic centers are ferromagnetically coupled, we investigate thermodynamic properties of one-dimensional spin- Heisenberg ferromagnets both numerically and analytically. On the one hand, quantum Monte Carlo calculations illuminate the overall thermal behavior. The specific heat may exhibit a double-peaked structure at intermediate temperatures for $S\agt 3s$ in general. On the other hand, a modified spin-wave theory precisely describes the low-temperature properties. Expanding the specific heat and the magnetic susceptibility, we reveal an analogy and a contrast between mixed-spin ferromagnets and ferrimagnets.
6 pages, 4 figures
References in corpus (26)
- Stochastic series expansion method with operator-loop update
- Low-Lying Excited States and Low-Temperature Properties of an Alternating Spin-1 / Spin-1/2 Chain : A DMRG study
- Matrix product states approach to the Heisenberg ferrimagnetic spin chains
- Elementary Excitations of Heisenberg Ferrimagnetic Spin Chains
- 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
- A DMRG Study of Low-Energy Excitations and Low-Temperature Properties of Alternating Spin Systems
- Magnetic Properties of Quantum Ferrimagnetic Spin Chains
- Critical Behavior of Anisotropic Heisenberg Mixed-Spin Chains in a Field
- Intrinsic double-peak structure of the specific heat in low-dimensional quantum ferrimagnets
- Spin Chains with Periodic Array of Impurities
- Bosonic representation of one-dimensional Heisenberg ferrimagnets
- Multi-plateau magnetization curves of one-dimensional Heisenberg ferrimagnets
- Thermodynamic properties of ferromagnetic mixed-spin chain systems
- Combination of Ferromagnetic and Antiferromagnetic Features in Heisenberg Ferrimagnets
- Mixed Heisenberg Chains. I. The Ground State Problem
- Characterization of ferrimagnetic Heisenberg chains according to the constituent spins
- Spin-wave series for quantum one-dimensional ferrimagnets
- Alternating spin chains with singlet ground states
- Frustrated quantum Heisenberg ferrimagnetic chains
- Mixed Heisenberg Chains. II. Thermodynamics
- High Temperature Expansion for a Chain Model
- Magnon dispersions in quantum Heisenberg ferrimagnetic chains at zero temperature
- Low-Energy Structure of Heisenberg Ferrimagnetic Spin Chains
- Nuclear Spin-Lattice Relaxation in One-Dimensional Heisenberg Ferrimagnets: Three-Magnon versus Raman Processes
- Nuclear Magnetic Relaxation in the Ferrimagnetic Chain Compound NiCu(C_7_H_6_N_2_O_6_)(H_2_O)_3_2H_2_O: Three-Magnon Scattering?
Cited by in corpus (9)
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- Low-energy structure of the intertwining double-chain ferrimagnets A_3_Cu_3_(PO_4_)_4_ (A=Ca,Sr,Pb)
- Observation of thermodynamics originating from a mixed-spin ferromagnetic chain
- Classical correlation and quantum entanglement in the mixed-spin Ising-XY model with Dzyaloshinskii-Moriya interaction
- Evidence for multimagnon-mediated nuclear spin relaxation in the intertwining double-cain ferrimagnet
- Second cluster integral from the spectrum of an infinite XXZ spin chain
- Numerical interchain mean-field theory for the specific heat of the bimetallic ferromagnetically coupled chain compound MnNi(NO)(en) (en = ethylenediamine)