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cond-mat.stat-mech1998★ 10 cited
From spinons to magnons in explicit and spontaneously dimerized antiferromagnetic chains
Ariel Dobry, David Ibaceta
We reconsider the excitation spectra of a dimerized and frustrated antiferromagnetic Heisenberg chain. This model is taken as the simpler example of compiting spontaneous and expli…
cond-mat.stat-mech1997
Domain excitations in spin-Peierls systems
Ariel Dobry, David Ibaceta
We study a model of a Spin-Peierls material consisting of a set of antiferromagnetic Heisenberg chains coupled with phonons and interacting among them via an inter-chain elastic co…