Optical absorption of spin ladders

Preprint

21 October 1999

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.cond-mat/9910322

Abstract

We present a theory of phonon-assisted optical two-magnon absorption in two-leg spin-ladders. Based on the strong intra-rung-coupling limit we show that collective excitations of total spin S=0, 1 and 2 exist outside of the two-magnon continuum. It is demonstrated that the singlet collective state has a clear signature in the optical spectrum.

Keywords

OPTICAL ABSORPTION
ASSISTED OPTICAL
PHONON ASSISTED
SPIN LADDERS
TWO MAGNON

All Related Versions

Version 1, 1999-10-21, ArXiv
Published version: Physical Review B, 61 (21), 14307.

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