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Journal Articles Physical Review B: Condensed Matter and Materials Physics (1998-2015) Year : 1998

Phases of random antiferromagnetic spin-1 chains

C. Monthus
O. Golinelli
  • Function : Author
T. Jolicoeur

Abstract

We formulate a real-space renormalization scheme that allows the study of the effects of bond randomness in the Heisenberg antiferromagnetic spin-1 chain. There are four types of bonds that appear during the renormalization flow. We implement numerically the decimation procedure. We give a detailed study of the probability distributions of all these bonds in the phases that occur when the strength of the disorder is varied. Approximate flow equations are obtained in the weak-disorder regime as well as in the strong disorder case where the physics is that of the random singlet phase.
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Dates and versions

in2p3-00000101 , version 1 (23-11-1998)

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  • HAL Id : in2p3-00000101 , version 1

Cite

C. Monthus, O. Golinelli, T. Jolicoeur. Phases of random antiferromagnetic spin-1 chains. Physical Review B: Condensed Matter and Materials Physics (1998-2015), 1998, 58, pp.805-812. ⟨in2p3-00000101⟩
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