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Doped Coupled Frustrated Spin-1/2 Chains with Four-spin Exchange by Laflorencie, Nicolas; Poilblanc, Didier is a scholarly article available to read on EtoBox.

What is Doped Coupled Frustrated Spin-1/2 Chains with Four-spin Exchange about?

The role of various magnetic inter-chain couplings is investigated by numerical methods in doped frustrated quantum spin chains. A non-magnetic dopant introduced in a gapped spin chain releases a free spin-1/2 soliton. The formation of a local magnetic moment is analyzed in term of soliton confinement. A four-spin coupling which might originate from cyclic exchange is shown to produce such a confinement in contrast to transverse magnetic exchange. Dopants on different chains experience an effective space-extended non-frustrating pairwise spin interaction.

Author

Laflorencie, Nicolas; Poilblanc, Didier

Published

2002

Language

EN