Spin wave calculation of the field-dependent magnetization pattern around an impurity in Heisenberg antiferromagnets

Abstract

We consider the magnetic-field dependent spatial magnetization pattern around a general impurity embedded in a Heisenberg antiferromagnet using both an analytical and a numerical spin wave approach. The results are compared to quantum Monte Carlo simulations. The decay of the magnetization pattern away from the impurity follows a universal form which reflects the properties of the pure antiferromagnetic Heisenberg model. Only the overall magnitude of the induced magnetization depends also on the size of the impurity spin and the impurity coupling.

11 pages, 11 figures

References in corpus (4)

• Chain breaks and the susceptibility of Sr_2Cu_{1-x}Pd_xO_{3+δ} and other doped quasi one-dimensional antiferromagnets
• Thermodynamics of impurities in the anisotropic Heisenberg spin-1/2 chain
• Boundary contributions to specific heat and susceptibility in the spin-1/2 XXZ chain
• Universal alternating order around impurities in antiferromagnets

Cited by in corpus (8)

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• The even-odd effect in short antiferromagnetic Heisenberg chains
• Singular field response and singular screening of vacancies in antiferromagnets
• Possible quadrupolar nematic phase in the frustrated spin chain LiCuSbO${}_4$: an NMR investigation
• Effective cutting of a quantum spin chain by bond impurities
• Magnetization Plateaus in the Two-dimensional S = 1/2 Heisenberg Model with a 3$\times$3 Checkerboard Structure
• Spin Excitation Spectra of Spin-Orbit Coupled Bosons in Optical Lattice
• Impact of Stealthy Hyperuniform Magnetic Impurity Configurations on Bulk Magnetism in a Two-dimensional Heisenberg Model