The open spin chain with impurity: An exact solution

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  • B. Verkin Institute for Low Temperature Physics and Engineering of the National Academy of Sciences of Ukraine
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Original languageEnglish
Pages (from-to)9939-9946
Number of pages8
JournalJournal of Physics Condensed Matter
Volume9
Issue number45
Publication statusPublished - 10 Nov 1997

Abstract

Using a model of an open spin chain that is exactly soluble by means of a Bethe ansatz, we study the effects of a boundary magnetic field and an impurity spin coupled to the chain. An impurity spin only scatters forward, while the boundary is purely a back-scatterer. Two parameters for the impurity and one for the boundary permit us to mimic the effect of real magnetic impurity, with both forward and backward scattering.

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The open spin chain with impurity: An exact solution. / Frahm, Holger; Zvyagin, Andrei A.
In: Journal of Physics Condensed Matter, Vol. 9, No. 45, 10.11.1997, p. 9939-9946.

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Frahm H, Zvyagin AA. The open spin chain with impurity: An exact solution. Journal of Physics Condensed Matter. 1997 Nov 10;9(45):9939-9946. doi: 10.1088/0953-8984/9/45/021
Frahm, Holger ; Zvyagin, Andrei A. / The open spin chain with impurity : An exact solution. In: Journal of Physics Condensed Matter. 1997 ; Vol. 9, No. 45. pp. 9939-9946.
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