Doping of a spin-1 chain: An integrable model

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OriginalspracheEnglisch
Seiten (von - bis)2116-2119
Seitenumfang4
FachzeitschriftPhysical Review Letters
Jahrgang81
Ausgabenummer10
PublikationsstatusVeröffentlicht - 7 Sept. 1998

Abstract

An exactly soluble model describing a spin S = 1 antiferromagnetic chain doped with mobile S = 1/2 carriers is constructed. In its continuum limit the undoped state is described by three gapless Majorana fermions composing the SU(2) triplet. Doping adds a scalar charge field and a singlet Majorana fermion with different velocity. We argue that this mode survives when the Haldane gap is added.

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Doping of a spin-1 chain: An integrable model. / Frahm, Holger; Pfannmüller, Markus P.; Tsvelik, A. M.
in: Physical Review Letters, Jahrgang 81, Nr. 10, 07.09.1998, S. 2116-2119.

Publikation: Beitrag in FachzeitschriftArtikelForschungPeer-Review

Frahm H, Pfannmüller MP, Tsvelik AM. Doping of a spin-1 chain: An integrable model. Physical Review Letters. 1998 Sep 7;81(10):2116-2119. doi: 10.1103/PhysRevLett.81.2116, 10.15488/5084
Frahm, Holger ; Pfannmüller, Markus P. ; Tsvelik, A. M. / Doping of a spin-1 chain : An integrable model. in: Physical Review Letters. 1998 ; Jahrgang 81, Nr. 10. S. 2116-2119.
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